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SS 304 / 304L

Stainless Steel Grade 304 is the most commonly used stainless steel. It is an austenitic, corrosion resistant steel with excellent strength, toughness, fabrication characteristics and weldability.SS 304L is the low carbon version of SS 304 may be required for full corrosion resistance when thicker sections are welded. The SS 304H version has a guaranteed minimum carbon content, which ensures good strength at high temperatures. SS 304LN is a nitrogen-strengthen version of SS 304.

Specifications

Stainless Steel [SS] 304 / H / L / N / LN
AISI 304 / 304H / 304L / 304N / 304LN
UNS S30400 / S30409 / S30403 / S30451 / S30453
Werkstoff Nr. 1.4301 / 1.4306 / 1.4948 / 1.4311

Chemical Composition

SS 304 304H 304N 304L 304LN
Ni 8-11

8-11

8-11

8-13

8-11

Fe Balance

Cr 18-20

18-20

18-20

18-20

18-20

C 0.08 max

0.04-0.10

0.08 max

0.035 max

0.035 max

Si 0.75 max

0.75 max

0.75 max

0.75 max

0.75 max

Mn 2 max

2 max

2 max

2 max

2 max

P 0.040 max

0.040 max

0.040 max

0.040 max

0.040 max

S 0.030 max

0.030 max

0.030 max

0.030 max

0.030 max

N  

 

0.10-0.16

 

0.10-0.16

Mechanical & Physical Properties

Density 8.0 g/cm3
Melting Point 1400 °C (2550 °F)
Tensile Strength Psi - 75000 ,MPa - 515
Yield Strength (0.2%Offset) Psi - 30000 ,MPa - 205
Elongation 35 %

Application

Chemical Industry
Nuclear Industry
Food Pro Industry
Petrolium Industry
Fabrication Industry
Heat Exchangers

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