A803 29-4C S44735 - ASTM A803/A803M-2016(R2021)

Grade	A803 29-4C
USA UNS	S44735
Corresponding Standard	ASTM A803/A803M-2016(R2021) Standard Specification for Seamless and Welded Ferritic Stainless Steel Feedwater Heater Tubes
Classification	Ferritic Stainless Steel

A803 29-4C Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	More
Minimum Value	-	-	-	-	-	28	-	3.6	-	Ti+Nb = 6×(C + N) but no less than 020 min; 1.00 max
Maximum Value	0.03	1	1	0.04	0.03	30	1	4.2	0.045	Ti+Nb = 6×(C + N) but no less than 020 min; 1.00 max

A803 29-4C Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
≥515	≥415	≥18	≤241

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