S43100 Stainless Round Bar

Martensitic grade AISI 431 has excellent corrosion resistance for a 400 series stainless

can be heat treated to high strength levels. This grade is often used in the aerospace industry as fittings

and boltings requiring high yield strength. The excellent corrosion resistance also lends itself well to the marine industry.

Grade designation

AISI	UNS	EN	DIN	JIS
431	S43100	1.4057	X17CrNi16-2	SUS431

Chemical composition of grade 431

Grade	C	Si	Mn	P	S	Cr	Ni
431	0.12~0.20	1.00 max	1.00 max	0.040 max	0.030 max	15.00~18.00	2.00~3.00

SS 431 Round Bar Surface finish

CD	Cold drawn	P	Polished
BD	Bright drawn	SRE	Slit rolled edge
CG	Centreless ground	HF	Hot finished
CF	Cold finished	HRAP	Hot rolled annealed and pickled
P&T	Peeled and turned	RT	Rough turned/peeled
ST	Smooth turned	PR	Peeled and reeled

Applications of Stainless Steel 431 Round Bars

• Pipeline Engineering

• Marine Industry

• Chemical Industry

• Oil & gas industry

• Mechanical Engineering

• Plant Engineering

• Petrochemical Industry

• Power Industry

• Aerospace

• Food Processing Industry

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