Products

Thickness and Max. Width

Finishes

Finish	Description
CR	Work hardened for specific hardness.
2B	Cold Rolled, Annealed, Pickled and Skin Passed on Polishes rolls.
2D	Cold Rolled, Annealed and Picked
BA	Cold Rolled, Bright Annealed and Skin Passed on Polished Rolls.
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Characteristics and Applications

Stainless Steel Grades AISI

Main Characteristics

Typical Application / End products

202	High Cold Work hardening rate, good formability.	Water Tubings, watch parts, foot rule, Industrial Knives, bus body accessories, Kitchen appliances, Kerosene and Gas Stove parts.
301	Attains high strength by being cold worked, while retaining good ductility.	Used in cold worked condition for springs and wear plates.
304	Better welding characteristics with good formability and general corrosion resistance.	Watch parts, engine gaskets, flexible hoses, foot rule, door, hinges, capillary tubings and sinks.
304 L	Low carbon content, weldable and resistance to sensitisation. Good corrosion and oxidation resistance.	Hypodermic needles and capillary tubings.
316	Superior corrosion resistance to sea water and many chemicals and weldable.	Engine gaskets, flexible hoses, process plant and paper industry equipment.
316 L	Low carbon content highly corrosion resistant, weldable and resistant to sensitisation.	Process plant parts particularly in thick sections.
321	Weldable and resistant to sensatitisation. Good corrosion and oxidation resistance.	Heater elements, process plant, furnace parts and high temperature tubes.
409 M	Good corrosion and oxidation resistance	Auto mufflars, catalytic converters and transformer cases.
410 S	Weldable and resistance to scaling. Good corrosion and heat resistance.	Turbine blades, fasteners and finishing tackle.
420	Superior wearability, excellent corrosion resistace and hardenable to 500 BHN.	Surgical instruments, knife blades and valve parts.
430	Superior corrosion resistance and formable.	Automobile trim and food processing plants.
J4 (1%Ni)	High cold work hardening rate, normal formability	Welded tubes, utensils, kitchen appliances, sinks
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Mechanical Properties

Condition

UTS
N/mm²

0.2 % Proof
Stress N/mm²

%
Elongation

Hardness
RB

202	Annealed	525	225	40	95
301	Annealed	515	205	40	95
304	Annealed	515	205	40	92
304 L	Annealed	485	170	40	92
316	Annealed	515	205	40	95
316 L	Annealed	485	170	40	95
321	Annealed	515	205	40	95
409 M	Annealed	450	275	20	90
410 S	Annealed	415	205	22	89
420	Annealed	690	-	15	96
430	Annealed	415	205	22	89
J4 (1%Ni)	Annealed	600	300	35	100
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Tolerance on thickness

Thickness

(mm)

Tolerance on Thicknes (+/-) for width (mm)

<250

<250 to <500

<500 to <1000

0.05	0.15	0.005	0.005	-
0.15	0.25	0.015	0.020	-
0.25	0.40	0.030	0.040	0.040
0.40	0.60	0.040	0.040	0.050
0.60	0.80	0.050	0.060	0.070
0.80	1.00	0.060	0.070	0.080
1.00	1.25	0.070	0.080	0.080
1.25	1.50	0.080	0.090	0.100
1.50	2.00	0.090	0.110	0.120
2.00	2.50	0.100	0.120	0.150
2.50	3.00	0.120	0.150	0.200
3.00	4.00	0.150	0.170	0.200
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Tolerance on Width

Condition of Edge	Width tolerance of nominal width(mm)
	<250	<250 to <500	<500 to <100
Mill Edge	+ 5	+ 10	+ 20
Mill Edge	- 0	- 0	-0
Trim Edge	+ 5	+ 5	+ 5
Trim Edge	- 0	- 0	-0
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Tolerances on Slit Width

Thickness	(mm)	Width tolerance(+ / -) on nominal width ( mm )
		<150	150 < 250	250<500	500<1000
0.60		0.15	0.20	0.25	0.50
060	1.00	0.20	0.25	0.25	0.50
1.00	1.50	0.20	0.30	0.30	0.60
1.50	2.50	0.25	0.35	0.35	0.70
2.50	4.00	0.30	0.40	0.40	0.80
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Chemical Composition

Stainless Steel	C	Si	Mn.	Cr.	Ni	P	S	Other
Grade AISI	Max.	Max.	Max.			Max.	Max.	Elements
202	0.08	1.00	7.5 / 10.00	17.00 / 19.00	4.00 / 6.00	0.060	0.030	-
301	0.15	1.00	2.00	16.00 / 18.00	6.00 / 8.00	0.045	0.030	-
304	0.08	075	2.00	18.00 / 20.00	8.00 / 10.50	0.045	0.030	-
304 L	0.03	0.75	2.00	18.00 / 20.00	8.00 / 12.00	0.045	0.030	-
316	0.08	0.75	2.00	16.00 / 18.00	10.00 / 14.00	0.045	0.030	Mo:2.00 / 3.00
316 L	0.03	0.75	2.00	16.00 / 18.00	10.00 / 14.00	0.045	0.030	Mo:2.00 / 3.00
321	0.08	0.75	2.00	17.00 / 19.00	9.00 / 12.00	0.045	0.030	Ti : 5X % C min.
409 M	0.03	1.00	1.00	10.50 / 12.50	1.00 max	0.030	0.030	Ti : 0.75 max
410 S	0.80	1.00	1.00	11.50 / 13.50	0.60 max	0.040	0.030	-
420	0.35	1.00	1.00	12.00 / 14.00	0.75 max	0.040	0.030	-
430	0.12	1.00	1.00	16.00 / 18.00	0.75 max	0.040	0.030	-
J4(1%Ni)	0.10	0.75	8.50/10.00	15.00/ 16.00	1.2 max	0.090	0.030	-
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