304 stainless steel shaft ss 304 shaft 304 machined

Whats the difference between 304 and 316 stainless steel

Sep 27,2012 304 stainless steel shaft ss 304 shaft 304 machined#0183;Type 316 stainless steel is an austenitic chromium-nickel stainless and heat-resisting steel with superior corrosion resistance as compared to other chromium-nickel steels when exposed to many types of chemical corrodents suchType 304 and 304L Stainless Steel ExplainedJan 11,2020 304 stainless steel shaft ss 304 shaft 304 machined#0183;Type 304 Stainless Steel Type 304 is the most widely used austenitic stainless steel.It is also known as 18/8 stainless steel because of its composition,which includes 18% chromium and 8% nickel.Type 304 stainless steel has good forming and welding properties as well as strong corrosion resistance and strength.The Difference Between 304 and 316 Stainless Steel Metal 304 stainless steel shaft ss 304 shaft 304 machined#0183;Two of the more commonly used grades of austenitic stainless steel are grades 304 and 316.To help you determine which grade is right for your project,this blog will examine the difference between 304 and 316 stainless steel.304 Stainless Steel.Grade 304 stainless steel is generally regarded as the most common austenitic stainless steel.

T304 Stainless Steel Round Bar

304/304L Stainless Steel Round,an economical grade of stainless that is ideal for all applications where strength and superior corrosion resistance is required.304 Stainless Round has a durable dull,mill finish that is widely used for all types of fabrication projects that are exposed to the elements - chemical,acidic,fresh water,and salt water environments.T303 Stainless Steel TGP Shafting303 Stainless TGP Shafting,is stainless round that has been Turned,Grounded,and Polished up to a tight diameter tolerance of +/- .0025 making it ideal for all bearing applications where greater strength and good corrosion resistance is required.303 Stainless TGP,bearing shaft quality is widely used for all shafting applications that are exposed to the elements - food,Stainless-Steel 304 vs.430 - What's the Difference?304 Stainless-Steel is among the highest grade used to produce truck parts.Comprised of 18% chromium,304-grade stainless-steel should never rust through to the point that it will jeopardize the integrity of the metal; the chromium properties in the metal will only allow corrosion to go so far before stopping the rusting process.

Stainless-Steel 304 vs.430 - What's the Difference?

304 Stainless-Steel is among the highest grade used to produce truck parts.Comprised of 18% chromium,304-grade stainless-steel should never rust through to the point that it will jeopardize the integrity of the metal; the chromium properties in the metal will only allow corrosion to go so far before stopping the rusting process.Stainless steel grade chart - Atlas Steelsat least equivalent to type 304.Free machining grade.Domestic and mild industrial environment.Water low in chlorides.Nuts and bolts,shafts,ttings.Corrosion resistance lower than 304.Good resistance to corrosion,good for malleability and weldability.Most commonly used grade.Stainless steel grade chart - Atlas Steelsat least equivalent to type 304.Free machining grade.Domestic and mild industrial environment.Water low in chlorides.Nuts and bolts,shafts,ttings.Corrosion resistance lower than 304.Good resistance to corrosion,good for malleability and weldability.Most commonly used grade.

Stainless Steel Round Stock McMaster-Carr

304 Stainless Steel When compared to standard 304 stainless steel,this material can be machined faster with less wear on cutting tools.It's also called Prodec and Project 70+.Stainless Steel Round Bar ASTM A276 Rod/ Square/ Hex ASTM A276 Stainless Steel Round Bar ASTM A479 Stainless Steel Hex Bar,SS Flat/ Square Bars,Rod manufacturer in India .Steel Tubes India Stocks high quality Stainless Steel round bar from 3/16 to 4 in type 303,304,304L,316,316L,410,416,and 440C grades.SS bar shapes are in stock round,flat,square,angle and hexagonal in grades 303,304 and 316,weStainless Steel Rods Round Bars Favordrory 20 Pieces 304 Stainless Steel 2mm x 300mm Model Straight Metal Round Shaft Rods,Lathe Bar Stock for Toy Car Helicopter Airplane 5.0 out of 5 stars 2 $12.69 $ 12 .

Stainless Steel Pipe -Type 304 Schedule 40S

Browse Stainless Steel Pipe -Type 304 Schedule 40S in the Continental Steel Tube Co.catalog including Item #,Size,O.D.,Wall Thickness,WeightStainless Steel Grades - Continental Steel Tube CompanyType 301.Highly ductile,for formed products.Also hardens rapidly during mechanicalType 302.Same corrosion resistance as 304,with slightly higher strength due to additionalType 303.Easier machining version of 304 via addition of sulfur and phosphorus.AlsoType 304.The most common grade; the classic 18/8 stainless steel.Also referred to as A2Type 309.Better temperature resistance than 304.Type 316.The second most common grade (after 304); for food and surgical stainless steelType 321.Similar to 304 but lower risk of weld decay due to addition of titanium.See alsoSee full list on continentalsteel304 vs 316 Stainless Steel - The Pros and Cons Arthur HarrisBoth steels are durable and provide excellent resistance to corrosion and rust.304 stainless steel is the most versatile and widely used austenitic stainless steel in the world,due to its corrosion resistance.304 stainless is also cheaper in cost compared to 316,another reason for its popularity and widespread use.Stainless Steel Grades (The Ultimate Guide) MachineMfg303 stainless steel.The 303 stainless steel can be machined more easily than 304 stainless steel by adding a small amount of sulfur and phosphorus.304 stainless steel.It belongs to the general model,which is 18/8 stainless steel.GB grade is 0Cr18Ni9.309 stainless steel.It has better temperature resistance than 304 stainless steel.316

Stainless Steel Bar - round,flat,sqare,angle,hexagonal

Stainless Steel Bar.We can supply Stainless steel bar in round,flat,square,rectangular and hexagonal.Round Bar stock in 303,304,310,316T,i321,410,416,420,431,430 F..All stainless stock can be delivered mirror polished if required,Call for details.Stainless Steel 303 vs 304 (18/8) vs 316 Comparison May 30,2019 304 stainless steel shaft ss 304 shaft 304 machined#0183;Austenitic stainless steel is non-magnetic and its structure allows for the material to be hardened through cold-working.The subgroups of austenitic stainless steel are 300 and 200.We will review the main grades of stainless steel in the 300 subgroups as these are the most widely used grades.303 vs 304 vs 316 Stainless Steel.303 Stainless SteelStainless Steel 303 Verses 304 - Clinton AluminumNov 27,2017 304 stainless steel shaft ss 304 shaft 304 machined#0183;How to chose between 303 and 304 stainless steel alloys? 303 stainless steel is a free-machining grade of 304 that has sulfur added to increase its machinability.It is particularly desired for automatic machining operations for this reason.It also maintains the mechanical and corrosion resistance common to stainless steel.

Stainless Steel 301 Round Bars|301 Stainless Steel Half

301 stainless steel 1/2 hard (AMS 5519) is ideal for applications requiring both formability and tensile strength of 150,000 PSI and yield strength of 110,000 PSI,301-1/2 Hard Tempered Stainless Round Bars- AMS 5518,Stainless steel SS 201,SS 202,SS 301,SS 304,SS 310,SS 316,SS 321,SS 410,SS420,SS 430 Round BarsStainless Hollow Bar Tubing - Hollow Bar Stainless Steel TW Metals Corporate Headquarters The Arboretum,Suite 204 760 Constitution Drive Exton,PA 19341 1-610-458-1300Stainless Bar Stock 303,304 316 Stainless Steel Bar304 Stainless Steel Square Bar Stainless steel square bar 304 provides excellent tensile strength,high resistance to rust,and high fabrication ability.304 stainless steel square bar is a highly cost-effective and versatile material.It is perfectly suitable for most applications where durable support and corrosion resistance are required.

Some results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextSome results are removed in response to a notice of local law requirement.For more information,please see here.12345Nextsus304 stainless steel shaft,sus304 stainless steel shaft

A wide variety of sus304 stainless steel shaft options are available to you,such as not available,3 years.You can also choose from new sus304 stainless steel shaft,as well as from hotels,manufacturing plant,and building material shops sus304 stainless steel shaft,and whether sus304 stainless steel shaft is 1.5 years,1 year,or unavailable.STAINLESS STEELS FOR MACHINING - Nickel Institutewhile Type 303 is the more machinable variation of Type 304.Selection of the proper stainless steel from the many types available requires an evaluation based upon five important criteria.Listed in order of importance,they are Corrosion or Heat Resistancethe primary reason for specifying stainless steel.

SS304 Grade AISI 304 Stainless Steel Properties

Dec 14,2019 304 stainless steel shaft ss 304 shaft 304 machined#0183;AISI 304 stainless steel (UNS S30400) is the most commonly used material in stainless steels,and is usually purchased in an annealed or cold worked state.Because SS 304 contains 18% chromium (Cr) and 8% nickel (Ni),its also known as 18/8 stainless steel.Type 304 has good processability,weldability,corrosion resistance,heat resistance,low temperature strength and mechanicalPump Shaft Quality Stainless Steel Bars - Continental Each shaft is also straightened in order to minimize vibrations that may occur throughout the length of the shaft.Whether you use our stainless steel bars in shaft or other applications,you can be sure that it has been machined to the highest quality specifications for straightness and diameter.What Continental Steel OffersPrecision Ground Stainless Steel Blanks - Machine Ready SS Dix offers 303 Stainless Steel 304 Stainless Steel grades so you can put an end to time-consuming prep and setup work with our stainless precison ground blanks.Dix Metals provides superior prefabricated materials according to your specifications,allowing you to start production immediately without the need for grinding,flattening,sawing or squaring.

Medical Applications of Stainless Steel 304 (UNS S30400)

Aug 30,2012 304 stainless steel shaft ss 304 shaft 304 machined#0183;A high corrosion resistance and low carbon content are key factors that mak Stainless Steel 304 suitable for medical applications over and above other grades of Stainless steel.The reassurance that medical devices won't chemically react with bodily tissue,cleaning products used to sterilise and the hard,reptitive wear that many medical devices are subjected to,means that Stainless 304Mar-10 Russel MetalsMar-10 is a vacuum remelt grade of martensitic age-hardenable stainless steel,custom-designed for pump-shaft type applications which require higher strengths than type 304,316/317 stainless steels,and greater corrosion resistance than type 410/416,or 17-4PH stainless steels (CEVM ASTM-A-565-92A).Know Your Stainless Steel Finishes - RyersonSuch common stainless steel grades as 201,304,304L and 316L come in a standard 2B finish. 2D This finish is also achieved by cold rolling,heat treating and pickling,but,unlike 2B,does not receive the light rolling.This achieves a low reflective matte surface appearance that is ideal for industrial and engineering applications yet has

Is 304 stainless hard to machine or am I doing something

Oct 27,2010 304 stainless steel shaft ss 304 shaft 304 machined#0183;Most of the stainless producers have premium material specifically made for machining.Carpenter Project 70 304 would be one.The premium machining varieties have the elements making machining difficult skewed to the minimum percentage allowed by the alloy spec.Likewise those making it easier to machine are skewed to the high side.How to Anneal Stainless Steel and Other MetalsJan 15,2018 304 stainless steel shaft ss 304 shaft 304 machined#0183;January 15,2018.A.The answer at the start of the thread confuses me.1900 304 stainless steel shaft ss 304 shaft 304 machined#176;F is way too hot for what the person wants to do.I am annealing 316 SST parts as I write this at 750 304 stainless steel shaft ss 304 shaft 304 machined#176;F in an electric Kiln.3 hrs at 750 with a 50 304 stainless steel shaft ss 304 shaft 304 machined#176;F per hour cool-down and we went from getting Machined a single part per Carbide inset to 4 parts or more per insert.DESIGN GUIDELINES FOR THE SELECTION AND USE OFReference is often made to stainless steel in the singular sense as if it were one material.Actually there are over 50 stainless steel alloys.Three general classifications are used to identify stainless steels.They are 1.Metallurgical Structure.2.The AISI numbering system namely 200,300,and 400 Series numbers.3.

Custom Stainless Steel Parts Stainless Steel Machining

Stainless Steel 304 304 is the most common stainless steel alloy and is known for its pristine surface finish.It has significantly higher corrosion and oxidation resistance than carbon steels.304 is formable,weldable and ideal for use in corrosive environments.Comparing Stainless Steel and Other Metals MachineThe lowest-priced uncertified raw material in this analysis is 4130 alloy steel.2024-T3 aluminum costs 40% more and 7075-T6 aluminum is 42% more expensive.304 stainless steelClifton Steel Co.- Supplier of 304 stainless steel Clifton Steel Co.is an industrial supplier of 304 stainless steel,carbon steel,hard shaft,hydraulic,mild steel,shaft,shafting,stainless steel,stainless steel rods,steel bar.

China Horizontal Ribbon Mixer 304 Stainless for Coffee

Horizontal ribbon mixer 304 stainless for coffee powder product description.It is widely used in food processing,chemical industry.It can mix many kinds of material especially for the powder and granule which is with stick or cohesion character,or add a little liquid and paste material into powder and granule material.China AISI Stainless Steel Shaft (304 304L 321 310S Stainless Steel Shaft,304 Stainless Steel Shaft,304L Stainless Steel Shaft manufacturer / supplier in China,offering AISI Stainless Steel Shaft (304 304L 321 310S),Mild Steel Plate Structural Ms Carbon Steel Plate (A36 Q235 Q345 S275JR S235JR S355JR S355j2),X Ray Pb Glass 8mm 10mm 12mm 18mm 20mm X-ray Protective Radiation Shielding Lead Glass andCarbon Steel vs Stainless Steel - MarkforgedIt can effectively match the material properties of stainless steel as a result,alloys like 4140 and 4340 are often machined and used in many applications in which a little oxidation doesnt hurt.Stainless steel is a higher grade material better used in industrial operations,where part quality cant be compromised.

Bar,Sheet,Plate,Structural,Tube Pipe - Alro Steel

Alro Steel Metals Guide Stainless Steel 303 is a free-machining variation of 304.The addition of sulfur for better machinability makes this a favorite for use in automatic screw machines.Corrosion resistant to atmospheric exposures,as well as a wide range of chemicals; most dyes,foods and nitric acid.Typical Analysis 303/303 GPAISI 304 vs 304L Stainless Steel Properties (UNS S30403 Both 304 and 304L stainless steel can be easily welded with or without filler metal.If necessary,the recommended filler metal for SS304 is E308,and SS304L is E308L.Weldments that are too large or too complex for full annealing require stress relieving,304 weldments are easily sensitized,and intergranular corrosion or stress-assisted intergranular corrosion occurs.7 Things to Consider When Choosing a Stainless Steel Grade Aug 22,2016 304 stainless steel shaft ss 304 shaft 304 machined#0183;Stainless steel,known primarily for its corrosion resistance,is used in a wide variety of applications.The diverse range of grades allows it to accommodate various applications across many different industries.However,having so many grades requires the know-how to select the appropriate one for the job.

304 Stainless Steel in Seawater - Clinton Aluminum

Dec 20,2017 304 stainless steel shaft ss 304 shaft 304 machined#0183;Clinton offers SAE 304 stainless steel,which can also be found under the name A2 stainless steel or 18/8 stainless steel.304 is the most popular stainless steel alloy available on the market.It is an austenite steel,meaning that it is non-magnetic in nature.This alloy was first developed by Firth Brown Steels nearly a century ago.304 Stainless Steel Threaded Rod 304 Threaded Rod View IMS stock of Stainless Steel Threaded Rods.Our Stainless Steel Threadless Rods have a wide range of diameters and threads per inch.Shop now!304 Stainless Steel Stainless Steel Grating - Grainger Searching for 304 Stainless Steel Stainless Steel Grating products? Grainger's got your back.Easy online ordering for the ones who get it done along with 24/7 customer service,free technical support more.

304 Stainless Steel Shim,ASTM A240,.001 to .031 Thick

304 Stainless Shims The most widely used of the austenitic grades,304 offers good corrosion resistance to many chemicals and industrial atmospheres.Generally considered non-magnetic,it can become slightly magnetic when cold-worked.304 is non-hardenable by heat treatment.304 Stainless Steel Shaft,SS 304 Shaft,304 Machined Manufacturer and Supplier of 304 Stainless Steel Shaft crafted with Precision CNC Machining,with High Dimension Accuracy and Excellent Surface Finish.Custom Machined 304 Shaft as per Drawing.On Time Delivery of High Quality 304 Machined Shaft.304/304L304 Stainless Steel McMaster-Carr304 Stainless Steel When compared to standard 304 stainless steel,this material can be machined faster with less wear on cutting tools.It's also called Prodec and Project 70+.

304 Stainless Steel Expanded Metal PolesPeople also askWhat is the difference between 304 and 303 stainless steel?What is the difference between 304 and 303 stainless steel?It also is recognized for its higher corrosion resistance than most other stainless steel alloys.Choosing between the two most often comes down to whether machining is a prominent part of your application.303 stainless steel is specifically made for machining applications,whereas many 304 grades can be difficult to machine.Stainless Steel 303 Verses 304 - Clinton Aluminum304 Stainless Steel - Grainger Industrial Supply

Stainless steel blanks,flats,bars,plates,sheet stock,and rod stock are machine-ready to reduce setup time for parts fabrication.Stainless steel foil rolls can be formed and cut to size for creating moisture barriers,lining chemical tanks,making304 304L Stainless Steel - 304 Stainless Steel Sheet We can supply cut to size 304 stainless steel Plate,with both narrow and wide widths,our stock of ASTM A240 304 Stainless steel Plate includes Thickness of 6mm up to 100mm with of 1250mm,1500mm,2000mm,2500mm,3000mm.* Order large or small Quantity of 304 stainless steel plate * Cut to size 304 stainless steel plate

304 2 B Stainless Steel Plates and Sheets,Gage 7 to 26

304 Stainless Steel Sheet,Cold Rolled,#2 Bright Finish.Low carbon chromium nickel stainless steel is used where good corrosion resistance and mechanical properties are needed.Meets ASTM A240-92B.Stock # Thickness Width Length Price Each Purchase Online MS-3145.024 12 12 $17.88 Buy Now MS-3126.024304 / 304L Stainless Steel Bar Stock - Tw Metals304 and 304/L (UNS S30400 UNS S30403) are austenitic alloys of stainless steel bars.These alloys are the most familiar and most frequently used alloys in the stainless steel family.The L in 304/L refers to a lower carbon content to allow for greater corrosion protection when welding.304 / 304H - Rolled Alloys,Inc.416 stainless steel is a free-machining martensitic stainless steel with 12-13% chromium that can be hardened by heat treatment to higher strength and hardness levels. Applications are gas turbine components including shafts and fasteners.L605. This is the 0.04% minimum carbon version of type 304 stainless.It has general corrosion

304 304L Stainless Steeel Bars and Rods Advance

The 304 stainless steel bars 3 4 11 unc all thread rod has a stainless level ranging between 2,550 304 stainless steel shaft ss 304 shaft 304 machined#176;F 2,650 304 stainless steel shaft ss 304 shaft 304 machined#176;F.However,as it reaches that level,the more it loses its tensile strength.304/304L has a tensile strength of 621 MPa (90 ksi) and 870C as304 304L Stainless Steeel Bars and Rods Advance The 304 stainless steel bars 3 4 11 unc all thread rod has a stainless level ranging between 2,550 304 stainless steel shaft ss 304 shaft 304 machined#176;F 2,650 304 stainless steel shaft ss 304 shaft 304 machined#176;F.However,as it reaches that level,the more it loses its tensile strength.304/304L has a tensile strength of 621 MPa (90 ksi) and 870C as303 vs 304 Stainless Steel What's the Difference?May 28,2020 304 stainless steel shaft ss 304 shaft 304 machined#0183;Stainless steel is a property notorious for its corrosion resistance and remarkable ability to resist stains.That said,stainless steel is broken down into different grades,each with slightly varying characteristics based on the chemical makeup.Below,we review the differences between grades 303 vs 304 stainless steel.

303 Stainless Steel Plate and Sheet Products Atlantic

303 is the perfect grade stainless steel to be used in machining applications.Typically 303 can be found used in shafts,nuts,bolts,with gears,in aircraft fittings316L Grade Stainless Steel is one of the more common austenitic stainless steels. results for this questionWhat is stainless 304 hex bar?What is stainless 304 hex bar?Stainless 303 hex bar is especially suitable for machining,stainless 304 hex bar offers weldability and corrosion resistance in many environments,and stainless 316 marine grade stainless offers the greatest strength and salt water corrosion resistance.Stainless Hex Bar - Ryerson results for this questionWhat is AISI 304L stainless steel?What is AISI 304L stainless steel?AISI 304L is the low carbon version of 304 stainless steel,AISI 303 is a free-machining steel,basically a variant of 304,which increases the phosphorus (P) and sulfur (S) content and improves the machinability.AISI 316 is better than grade 304 in certain properties,corrosion resistance and heat resistance,etc.SS304 Grade AISI 304 Stainless Steel Properties

results for this questionWhat are the physical properties of 304?What are the physical properties of 304?304 Stainless Physical Properties 1 Density 8.03g/cm 3 2 Electrical resistivity 72 microhm-cm (20C) 3 Specific Heat 500 J/kg 304 stainless steel shaft ss 304 shaft 304 machined#176;K (0-100 304 stainless steel shaft ss 304 shaft 304 machined#176;C) 4 Thermal conductivity 16.3 W/m-k (100 304 stainless steel shaft ss 304 shaft 304 machined#176;C) 5 Modulus of Elasticity (MPa) 193 x 10 3 in tension 6 Melting Range 2550-2650 304 stainless steel shaft ss 304 shaft 304 machined#176;F (1399-1454 304 stainless steel shaft ss 304 shaft 304 machined#176;C)Type 304 and 304L Stainless Steel Explained results for this questionFeedbackstainless steel 304 shaft,stainless steel 304 shaft

9,186 stainless steel 304 shaft products are offered for sale by suppliers on ,of which stainless steel bars accounts for 33%,machining accounts for 3%,and shafts accounts for 2%.A wide variety of stainless steel 304 shaft options are available to you,such as new.

We Export 304 stainless steel shaft ss 304 shaft 304 machined to Following Countries:
Get In touch with
Product SERVICE ONLINE Contact us Steel Material Our Live Inventory:
Shipbuilding steel plate stock
Boiler steel plate stock
Weathering steel plate stock
Hot rolled steel sheet plate stock
Carbon steel plate stock
Alloy steel plate plate stock
Gas cylinder steel plate stock
Q235B steel plate plate stock
A36 steel plate plate stock
Q345B steel plate stock
09CuPCrNi-A steel plate stock
Pipeline steel plate stock
Low-carbon steel plate stock
Pressure vessel steel plate stock
Seamless steel pipe plate stock
Automotive steel plate stock
Wear-resistant steel plate plate stock
Low-alloy steel plate stock
Hot rolled coil plate stock
flat steel plate stock
Cowden Steel plate stock
Weather resistant steel plate stock
Marine engineering steel plate stock
304 stainless steel shaft ss 304 shaft 304 machined Plate Manufacturer
304 stainless steel shaft ss 304 shaft 304 machined Super Mirror Sheet / Plate Supplier
cold rolled 304 stainless steel shaft ss 304 shaft 304 machined plate distributor
304 stainless steel shaft ss 304 shaft 304 machined Steel Plate dealer
304 stainless steel shaft ss 304 shaft 304 machined hot rolled distributor
Carbon Steel diamond checkered plate304 stainless steel shaft ss 304 shaft 304 machined Resistant exporter
High Quality 304 stainless steel shaft ss 304 shaft 304 machined Decorative Plate importer
stock manufactured material astm a106 a53
sa302 gra fnaf
d steel plate hot rolled made
astm a656 a656m north korea spray paint
low price prime standard bs1387 shs steel tube
astm a139 gr b
Corten Steel Plates SAILMA Plates High Tensile Steel
a299 grade a a299gra
2mm Thick 304 stainless steel shaft ss 304 shaft 304 machined Steel Plate exporter
304 stainless steel shaft ss 304 shaft 304 machined plate supplier
Manufacturer preferential supply High Quality 304 stainless steel shaft ss 304 shaft 304 machined Steel plate
export heat resistant 6mm 304 stainless steel shaft ss 304 shaft 304 machined plate manufacturer
About

ESCULT CARBON STEEL is specialized in steel plate export. As a professional and reliable steel plate supplier, we have built cooperation with over 30 countries and regions, including USA, Europe, Saudi Arabia, Egypt, Bangladesh, Sri Lanka, Korea, Vietnam, Myanmar and so on.

For any steel plates we do not have in stock, we have developed relationships with a large number of manufacturers, mill depots, and master distributors, which enables us to locate and supply even the most unusual sizes and grades as per customer requirements - so called "one station" services...

Read More
Contact us
Phone: 0086-371-86151827
Add: Zhengzhou city Henan, China

Our professional team will reply to you within one business day.Please feel free to contact us!