Type 302 Stainless Steel

Type 302 / 304 is the basic (18-8) type stainless. It work hardens faster than Type 301, but offers better corrosion resistance. Some welding applications may benefit from Type 304L, a lower carbon version of 304. Type 302 / 304 is used in many applications including laser welded tubing, bellows, laser and chemical etching, medical, food and tool wrap applications.

To be considered Type 302, a stainless steel must be composed of the follow:

• Cr 17-19%

• Ni 8-10%

• Mn 2%

• Si 1%

• C 0.15%

• S 0.03%

• P 0.045%

Chemical Composition (%) of 302 Stainless Steel Plate

Cr	N	Mn	C	S	P	Si
17-19	8-10	2.00 max	0.15 max	0.030 max	0.045 max	1.00 max

Types 302, 304, 304L, and 305 stainless steels are variations of the 18 percent chromium – 8 percent nickel austenitic alloy, the most familiar and most frequently used alloy in the stainless steel family. These alloys may be considered for a wide variety of applications where one or more of the following properties are important:

1. Resistance to corrosion

2. Prevention of product contamination

3. Resistance to oxidation

4. East of fabrication

5. Excellent formability

6. Beauty of appearance

7. Ease of cleaning

8. High strength with low weight

9. Good strength and toughness at cryogenic temperatures

10. Ready availability of a wide range of product forms

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