Specification

Grade	409,409L,410,410S,420,420J2,430
Standard	ASTM A240
Thickness	Cold rolled:0.2-3.0mm Hot rolled:3.0-60mm
Length	2000mm-8000mm or as customers' request
Surface finish	NO1,No.4,2B, BA, 6K, 8K, Hair Line with PVC

Mechanical Properties

Grade	YS(Mpa) ≥	TS (Mpa) ≥	El (%) ≥	Hardness(HV) ≤
409	175	360	20	150
410	200	440	20	145
410S	200	410	20	145
430	200	450	25	145

Chemical Composition

Grade	C	Si	Mn	P≤	S≤	Cr	Mo	Ni	Other
409	≤0.03	≤1.00	≤1.00	0.04	0.03	10.5-11.7	-	≤0.6	Ti=6×C%~0.75
410	≤0.15	≤1.00	≤1.00	0.04	0.03	11.5-13.5	-	-	-
410S	≤0.08	≤1.00	≤1.00	0.04	0.03	11.5-13.5	-	-	-
420	≤0.15	≤1.00	≤1.00	0.04	0.03	12.0-14.0	-	-	-
430	≤0.12	≤0.75	≤1.00	0.04	0.03	16-18	-	≤0.4	-

Surface Treatment

Name	Feature	Specification	Picture
2B	Bright	After cold rolling ,by heat treatment ,pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster.
BA	Polishing ,mirror	Processed with bright heat treatment after cold rolling
Hairline	Line like hair	Hair grain grinding by appropriate particle size of material
6K/8K	Mirror, brighter than BA	Very bright, grinding and polishing surface by 1000# strop grain of abrasive belt

Finish:BA,2B,2D,No.1,No.4,8k
BA - processed with bright heat treatment after cold rolling.
2B - after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster.
2D – matt finish, best choice for deep drawing.
No.1-finished by hot rolling,annealing and packing,characterized by white pickled surface.
No.4-Polishing with No.150 to No.180 mesh abrasives.

Applications of Stainless Steel Coils and Sheets:
1.Automotive:Automotive trim and molding/Difficult-to-form exhaust-system components, tubular manifolds, mufflers/Exhaust manifold and other exhaust-system components, catalytic converter shells.
2. Construction: Gutters and downspouts, roofing, siding.
3. Kitchenware: Cooking utensils, dishwashers, ovens, range hoods, refrigerators, skewers. 4. Chemical processing: Oil refinery equipment, oil burner and heater parts. 5. Appliances: Hot water tanks, residential furnaces.