ASTM A Standard Specification for Cold Finished Alloy Steel Bars. Find the most up-to-date version of ASTM A at Engineering See the chemical composition and physical properties of ASTM A Grade Steel, find alternative materials, and connect with suppliers.

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Machining is done prior to carburizing to within as close a tolerance as possible.

8620 Alloy Steels Material Property Data Sheet – Product availability and request a quote

Sometimes the replacement standard or specification contain different product requirements. Hardening is done by oil quench from F. The alloy may be forged at F down to F prior to the hardening asym treatment or carburizing.

Tempering of heat treated and water quenched parts not carburized is done at F to F with greater hardness the lower the tempering temperature. By continuing to use this website, you agree to their use.

This alloy is typically used for carburized parts where a hardened case is desired for wear resistance. For Email Marketing you can trust. In the carburized condition this alloy x331 used for gears, ring gears, shafts and crankshafts.

A request for an assist always results in a prompt response from the appropriate supplier expert or an answer from PMPA Staff.

Speaking of Precision Blog Sensemaking for the precision machining industry. Forming characteristics of alloy are good in the annealed condition.


The alloy may be cold worked in the annealed condition by conventional methods. Create a free website or blog at WordPress.

Following carburizing of heavy sections a reheat at F will enhance both case and core properties of the alloy. The alloy may be welded by conventional methods, usually gas or arc welding. Improved carburized case and core properties can be obtained by furnace cooling from carburizing at – F and then reheating to F.

This alloy may be hardened by heating a3331 F followed by a water quench. AISI is a hardenable chromium, molybdenum, nickel low alloy steel often used for carburizing to develop a case-hardened part.

Not applicable to this alloy.

Alloy Steels Material Property Data Sheet – Product availability and request a quote

Click Here to Email Me. From there it may be satm cooled. Carburize at to F in an appropriate carburizing medium and oil quench to harden. This case-hardening will result in good wear characteristics. To find out more, including how to control cookies, see here: Preheating at F is beneficial and subsequent heating after welding is recommended – consult the approved weld procedure for the method used.

ASTM A331 Rods for Construction, Length: 3 & 6 m

Machining may be done by conventional means prior to heat treatment – after carburizing machining is usually limited to grinding. This site uses cookies. Consult the alloy supplier for information as to temperatures.

The time to catch an obsolete specification is during contract review, before there are commitmemnts to material and or sunk costs of a31, production and inspection. Distributors will offer small quantity a33 while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required This material is stocked primarily in Bar Products by 59 distributors but is also available to a lesser extent in Flat Rolled Products, Astj Products, Wire Products, Forging Products, and Casting Products.


Sign up for our Newsletter. Where do you go for an assist when wierd, strange, and unusual specifications appear in a quote package? Tempering of carburized parts is done at to F and this will result in the alloy having a core strength of approximately ksi minimum with Rockwell C case hardness of Modulus of Elasticity Tension. Cold working, as with machining, should be done to as close a tolerance as possible before heat treatment or carburizing.

ASTM A Rods For Construction, Length: 3 & 6 M | ID:

Mean Coeff Thermal Expansion. These specifications, standards and descriptions often specify mandatory product attributes.

Hot working may be accomplished prior to hardening or carburizing. There were over 19, cancelled or superceded specifications, commercial item descriptions and standards when I first prepared my list of Obsolete Federal Specifications for cold finished steel in