S31803 - Q/RP 007-2018

S31803 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N
Minimum Value	-	-	-	-	-	21	4.5	-	2.5	0.08
Maximum Value	0.03	1	2	0.03	0.02	23	6.5	0.5	3.5	0.2

S31803 Mechanical Properties

delivery condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %
Offline solution annealing + pickling	1010℃ ~ 1100℃ Rapid Cooling	≤780	≥35	≥65
Hot-rolled + pickled	-	≤850	≥35	≥65

S31803 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!