326S36 - BS 970-4-1970

Grade	326S36
Corresponding Standard	BS 970-4-1970 Specification for Wrought steels in the form of blooms,billets,bars and forgings--Part 4:Valve steels
Classification	Austenitic Stainless Steel

326S36 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu ^◎	Mo	Ti ^◎	Nb ^◎	Se
Minimum Value	-	0.2	1	-	-	16.5	10	-	2.25	-	-	0.15
Maximum Value	0.12	1	2	0.045	0.06	18.5	13	0.7	3	0.1	0.2	0.3

326S36 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Hardness HBW
Steel	Softening treatment	≥52 kgf/mm2 （≥510 MPa）	≥21 kgf/mm2 （≥206 MPa）	≥40	≤183
Bar, d≤19	Cold draw	≥88 kgf/mm2 （≥862 MPa）	≥71 kgf/mm2 （≥696 MPa）	≥12
bar, 19.05＜d≤25.4	Cold draw	≥80 kgf/mm2 （≥784M Pa）	≥57 kgf/mm2 （≥559 MPa）	≥15
Bar, 25.4＜d≤31.75	Cold draw	≥74 kgf/mm2 （≥725 MPa）	≥46 kgf/mm2 （≥451 MPa）	≥20
Bar, 31.75＜d≤38.1	Cold draw	≥71kgf/mm2 （≥696 MPa）	≥35 kgf/mm2 （≥343 MPa）	≥28
Bar, 38.1＜d≤44.45	Cold draw	≥66 kgf/mm2 （≥647 MPa）	≥31 kgf/mm2 （≥304 MPa）	≥28

• The letters P, R, S and T in the table indicate the range of tensile strength of quenched and tempered steels.

• If bars are straightened by reeling or cold rectification the surface becomes work-hardened and the specified maximum Brinell hardness to be obtained on such bars shall be agreed between the manufacturer and the purchaser.

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