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Steel, alloy of iron and carbon in which the carbon content ranges up to 2 percent (with a higher carbon content, the material is defined as cast iron). By far the most widely used material for building the world’s infrastructure and industries, it is used to fabricate everything from sewing needles to oil tankers.

Below is carbon steel and stainless steel chemical table which shows steel grade, code, chemical composition and mechanical properties.

Grade	Code	Chemical Composition/%(≤)																	Mechanical Properties≥
		C	Mn	P	S	Si	Ni	Cr	Mo	Nb	N	Residual Elements/%(≤)							Mechanical Properties≥
		C	Mn	P	S	Si	Ni	Cr	Mo	Nb	N	Al	Cu	Ni	Cr	W	V	Amount	σb /MPa	σs /MPa	δ5/ %	ψ/%	Temp≤℃
WC1	JB/T 5263	0.25	0.50~0.80	0.035	0.040	0.60	-	-	0.45~ 0.65	-	-	-	0.50	0.50	0.35	0.10	-	1.00	450~ 620	240	24	35	482
WC6		0.05~ 0.20	0.50~ 0.80	0.035	0.040	0.60	-	1.00~ 1.50	0.45~ 0.65	-	-	-	0.50	0.50	-	0.10	-	1.00	485~ 655	275	20	35	593
WC9		0.05~ 0.18	0.40~ 0.70	0.035	0.040	0.60	-	2.00~ 2.75	0.90~ 1.20	-	-	-	0.50	0.50	-	0.10	-	1.00	485~ 655	275	20	35	593
C12A		0.12	0.30~ 0.60	0.02	0.018	0.20~ 0.50	0.40	8.0~ 9.5	0.85~ 1.05	0.06~ 0.10	0.03~ 0.07	0.04	-	-	-	-	0.18~ 0.25	-	585~ 760	415	20	45	648
WC6	ASTM A217	0.05~ 0.20	0.50~ 0.80	0.040	0.045	0.60		1.00~ 1.50	0.45~ 0.65	-	-	-	0.50	0.50	-	0.10	-	1.00	550~ 725	345	18	45
WC9		0.05~ 0.18	0.40~ 0.70	0.040	0.045	0.60		2.00~ 2.75	0.90~ 1.20	-	-	-	0.50	0.50	-	0.10	-	1.00	550~ 725	345	18	45
C5		0.20	0.40~ 0.70	0.040	0.045	0.75		4.00~ 6.50	0.45~ 0.65	-	-	-	0.50	0.50	-	0.10	-	1.00	620~ 795	415	18	35
C12		0.20	0.35~ 0.65	0.040	0.045	1.00	-	8.00~ 10.0	0.50~ 1.20	-	-	-	0.50	0.50	-	0.10	-	1.00	620~ 795	415	18	35
C12A		0.08~ 0.12	0.30~ 0.60	0.02	0.010	0.20 0.50	0.40	8.0~ 9.5	0.85~ 1.05	0.06~ 0.10	0.03~ 0.07	0.04	-	-	-	-	0.18~ 0.25	-	585~ 760	415	20	45

Grade	Code	Chemical Composition/%(≤)											Mechanical Properties≥
Grade	Code	C	Si	Mn	Cr	Ni	Mo	Cu	Ti	S	P	N	σb/MPa	σs/MPa	δ5/%	ψ/%
ZG08Cr18Ni9	GB/T 12230	0.08	0.15	0.8~2.0	17.0～20.0	8.0～11.0	—	—	—	0.03	0.040	—	441	196	25	32
ZG12Cr18Ni9		0.12	0.15	0.8~2.0	17.0～20.0	8.0～11.0	—	—	—	0.03	0.045	—	441	196	25	32
ZG08Cr18Ni9Ti		0.08	0.15	0.8~2.0	17.0～20.0	8.0～11.0	—	—	5（C—0.02）～0.7	0.03	0.040	—	441	196	25	32
ZG12Cr18Ni9Ti		0.12	0.15	0.8~2.0	17.0～20.0	8.0～11.0	—	—		0.03	0.045	-	441	196	25	32
ZG08Cr18Ni12Mo2Ti		0.08	0.15	0.8~2.0	16.0～19.0	11.0～13.0	2.0～3.0	—		0.03	0.040	—	490	216	30	30
ZG12Cr18Ni12Mo2Ti		0.12	0.15	0.8~2.0	16.0～19.0	11.0～13.0	2.0～3.0	—		0.03	0.045	—	490	216	30	30
CF3		0.03	2.00	1.50	17.0～21.0	8.0～12.0	0.50	—	—	0.04	0.04	—	485	205	35	-
CF8		0.08	2.00	1.50	18.0～21.0	8.0～11.0	0.50	—	—	0.04	0.04	—	485	205	35	-
CF3M		0.03	1.50	1.50	17.0～21.0	9.0～13.0	2.0～3.0	—	—	0.04	0.04	—	485	205	30	-
CF8M		0.08	1.50	1.50	18.0～21.0	9.0～12.0	2.0～3.0	—	—	0.04	0.04	—	485	205	30	-
CF8C		0.08	2.00	1.50	18.0～21.0	9.0～12.0	0.50	—	—	0.04	0.04	—	485	205	35	-
CF3	ASTM A351	0.03	2.00	1.50	17.0～21.0	8.0～12.0	0.50	—	—	0.04	0.04	—	485	205	35	-
CF8		0.08	2.00	1.50	18.0～21.0	8.0～11.0	0.50	—	—	0.04	0.04	—	485	205	30	-
CF3M		0.03	1.50	1.50	17.0～21.0	9.0～13.0	2.0～3.0	—	—	0.04	0.04	—	485	205	30	-
CF8M		0.08	1.50	1.50	18.0～21.0	9.0～12.0	2.0～3.0	—	—	0.04	0.04	—	485	205	30	-
CF8C		0.08	2.00	1.50	18.0～21.0	9.0～12.0	0.50	—	—	0.04	0.04	—	485	205	30	-

Chemical Composition of Steel ( Carbon steel, Stainless Steel, Special Alloy )

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