Stainless Steel

ASTM A 276

Specs: QQ-S-763, ASTM-A-276
UNS#: S30400

304 Stainless is one of the most widely used grades of Stainless Steel. An Austenitic Steel, generally composed of Chromium, Nickel, and Manganese, it is nonmagnetic and has excellent corrosion resistance, but is susceptible to stress-corrosion cracking.

Unlike 304 Stainless Condition B, Condition A is an annealed material generally preferred for resistance to most severely corrosive media, and generally more resistant than other types of Stainless Steel. Stainless 304 is non-heat-treatable.

For buyers reviewing bar stock, ASTM A 276 is especially relevant because it covers stainless steel bars and shapes. Under the standard, Condition A identifies annealed material, helping distinguish it from cold-worked conditions when matching stock to a purchase specification. If your documentation calls for ASTM A 276 type 304, confirm the required condition, dimensions, and form before ordering. This gives purchasing and engineering teams a clearer basis for comparing material against documentation requirements.

It is commonly used in the aerospace, petrochemical, oil patch, automotive, and marine defense industries.

Available shapes – round, hex and square

Because 304 Condition A isn’t heat treatable for hardening, selection should start with the required service environment and fabrication needs rather than an expectation of later heat treatment. Reviewing the ASTM A 276 requirement alongside UNS S30400 and the needed shape can make product evaluation more straightforward. Contact Wieland Diversified to discuss availability and confirm the appropriate 304 Condition A form for your current specification. 

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