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ASTM A240/240M-2021
In different standard, 304H stainless steel has different specification, stainless steel 304H equals as 07Cr19Ni10, SUS304H, 1.4948, 08X18H10 etc. The details as the following chart:
| Grade | UNS No | En | Japanese JIS | GB | GOST |
| 304H | S30409 | 1.4948 | SUS 304 | 07Cr19Ni10 | 08X18H10 |
|
|
C |
Si |
Mn |
P |
S |
Cr |
Ni |
|
Min |
0.04 |
– |
– |
– |
– |
18 |
8 |
|
Max |
0.1 |
0.75 |
2 |
0.045 |
0.03 |
20 |
10.5 |
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100 °C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100 °C | 0-315 °C | 0-538 °C | at 100 °C | at 500 °C | |||||
| 304/L/H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
High carbon content gives 304H a greater heat resistance, high tensile yield strength. 304H is a modification of 304, which has a carbon content of 0.04-0.10. For parts that are to be exposed to temperatures above 800°F, the use of 304H helps to improve strength at high temperatures.
A.Oil refining
B.Gas and chemical industry
C.Industrial boiler
D.Pressure vessels
E.Heat ex-changers
F.Pipelines and condensers
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