Smallparts 440 - Materials - Technical Information

QUICK SITE LINKS

Smallparts 440 - Materials - Technical Information

440C Stainless Steel

Similar Grades
Euronorm No. 1.4125
Euronorm Name X102CrMo17
JIS SUS440C
AISI440C
UNS S44004

SPB Products made from this material
Balls, Bearings

AISI440C stainless steel is a commonly used martensitic bearing grade stainless steel usually heat treated to between 58-62 HRC. Operating temperature is approximately up to 170 Degrees Celcius. After heat treatment, 440C is capable of attaining the highest strength, hardness and wear resistance of all the stainless alloys. This hardness is due to the high carbon content of the steel. The high carbon content also makes this stainless steel very magnetic, and lowers the corrosion resistance.

If your application requires a harder material see SAE52100 Chrome Steel. If you require even greater corrosion resistance (at the expense of speed, load carrying and precision) see 316 Stainless Steel.

The main component of the steel is Fe (Iron) with the addition of the elements shown in the following chart

Max. % Chemical Composition
C	Si	Mn	P	S	Cr	Mo
0.95 to 1.20	1.0	1.0	0.04	0.03	16.00 to 18.00	0.75

Small Parts & Bearings Main Pages

Technical Index

Product Technical Information

Balls	Bearings	Couplings
Pins	Shafting	Timing Belts and Pulleys

Other Technical Information

Basic Information Sheets	Catalogues	Glossary of Technical Terms
Links to Further Information	Materials Information	Measurement Conversions
Skate Bearing FAQ	Technical Information Sheets

Tables and information on this web site should be read as a general guide only. The relevant standards should be consulted to ensure accuracy

There are no further parts to this document.

SPB Terms and Conditions of Sale

SPB Freight Rates

Site Summary:

Small Parts and Bearings offers over 100,000 products including small bearings, timing pulleys, timing belts, seals, o-rings, gears etc - see the full listing in the Online Catalogue. Our main business is handled primarily through our internet store or via phone, fax or mail order. To keep our prices low we have minimised overheads by not having a storefront. If you would like to deal through an MBA distributor with a showroom and counter service you can contact H.E. Supplies (Hobby Engineering Supplies).

Using the links at the top of this page you will find extensive information including catalogues (Products and Store link), technical data, and other product specific information. We sell our product worldwide through our online store and have quite low overseas freight rates.

The Small Parts and Bearings online store is linked directly to the Miniature Bearings Australia online catalogue, so all new MBA products are added automatically. Recent additions include full ceramic bearings in Silicon Nitride and Zirconia, and ceramic hybrid bearings for pushbikes and other applications. New products are being added every week. We also suggest that you may want to take a look at the technical information sites - Shafting Information, Couplings Information, Gearboxes Information and General Engineering Parts Information.