Specification

Grade	409, 409L, 410,410S,430
Standard	ASTM240
Diameter	As customers requirement
Length	1000mm-8000mm or as customers' request
Surface finish	NO1,No.4,2B, BA, 6K, 8K, Hair Line with PVC

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	-

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

Grade	Application
409	Automobile exhaust pipe, silencer
410	Flat springs, knives, kitchen utensils and hand tools
420	Cutting tool, measuring tool, dental and surgical instruments, pump shafts, plastic molds and dies, steel balls, scissors, gear shafts,cams, pivots, Lens molds
430	Sinks, sink rims, appliance trim, counter tops, dish washers, range hoods, flatware, architectural uses, roofing, siding and restaurant equipment.

Application
Aerospace
Metal Service Centers
Nuclear
Marine/Shipbuilding
Chemical Processing
Oil & Gas
Food Service/Restaurant
Motorsports
Government/Military
Pumps & Valves
Machined Fabricated Components
Power Distribution
Fabricator