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Spec. for min. Yield of CF 303 Bars

Spec. for min. Yield of CF 303 Bars

Spec. for min. Yield of CF 303 Bars

We've been trying to purchase 303 stainless steel round bars in sizes ranging from 1/4" dia. to 6" dia. per ASTM A582 and the requirement "60,000 min yield."  For the smaller sizes, material is readily available that meets this min. yield (1-1/4" dia. and smaller).   We're not having much luck finding larger bars. I can't find any info. on min. yield requirements in ASTM A582 or A484.

My questions:
- Is there an ASTM spec. for 303 that designates min. yield strength requirements for specific size ranges?
- Is there a name-brand 303 that claims to meet 60 ksi min yield?
- Does anyone know of a distributor in the NJ/SouthEastPA area that specializes in meeting these types of unusual requirements?


SW Office Pro 2006 SP2.1

RE: Spec. for min. Yield of CF 303 Bars

I am not an expert in this area at all, but I believe the reason you are finding plenty of smaller diameter round bar is because the only way 303 is going to hit that yield strength is through cold working.

I don't know the maximum diameter encompassed there, but I'd wager it's somewhere near the limit of the largest ones you found already--and 6" seems ridiculous to me, but perhaps someone more knowledgeable about this subject can be specific.

RE: Spec. for min. Yield of CF 303 Bars

I just need to make a comment.
303 is not a structural material.
It is not allowed in the ASME B&PV Code.  It has inferior corrosion resistance, poor fatigue properties, and unpredictable toughness.
The thought of using 303 at elevated strength gives me pause, I hope that I am never depending on this equipment.

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Rust never sleeps
Neither should your protection

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