Ratnashri Metals is a leading Supplier, Manufacturer & Exporter of Stainless Steel 304L (UNS S30400, UNS S30403) Sheet, Stainless Steel 304L Plates, Stainless Steel 304L Coils, Stainless Steel 304L Seamless Pipes, Stainless Steel 304L Railing Pipes, Stainless Steel 304L Welded & ERW pipes & tubes.
304 is the original "18-8" stainless. It is produced in greater quantity than any other austenitic stainless steel. 304 provides useful resistance to corrosion in many environments ranging from moderately reducing to moderately oxidizing. Through the controlled addition of nitrogen, it is common for 304L to meet the mechanical properties of 304 straight grade. As a result, most products are dual certified as 304 and 304/304L.
NI |
CR |
MN |
SI |
C |
S |
P |
N |
FE |
|
MIN |
8.0 |
18.0 |
- |
- |
- |
- |
- |
- |
- |
MAX |
10.5 |
20.0 |
2.0 |
0.75 |
0.03 |
0.03 |
0.045 |
0.10 |
Balance |
Temperature, °F |
70 |
212 |
932 |
Coefficient* of Thermal Expansion, in/in°F x 10-6 |
- |
9.2 |
- |
Thermal Conductivity |
- |
9.4 |
12.4 |
Modulus of Elasticity Dynamic, psi x 106 |
29 |
- |
- |
* 70°F to indicated temperature.
Representative Tensile Properties
Ultimate Tensile Strength, ksi |
75 |
0.2% Yield Strength, ksi |
30 |
Elongation, % |
40 |
Hardness MAX, Brinell |
201 |
Temperature, °F |
-425 |
-320 |
-100 |
70 |
400 |
800 |
1200 |
Ultimate Tensile Strength, ksi |
250 |
230 |
150 |
90 |
70 |
66 |
48 |
0.2 % Yield Strength, ksi |
100 |
70 |
50 |
35 |
23 |
19 |
15.5 |
Charpy Impact V-notch, ft-lbs |
85 |
85 |
- |
150 |
- |
- |
- |
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