Stainless Steel 304 Seamless Pipes and Tubes Specification
Standard |
UNS |
Werkstoff NR. |
SS 304H |
S30409 |
1.43 |
Chemical Composition
SS |
304H |
Ni |
8-11 |
Fe |
Balance |
Cr |
18-20 |
C |
0.04-0.10 |
Si |
0.75 max |
Mn |
2 max |
P |
0.045 max |
S |
0.030 max |
N |
0.030 max |
Mechanical Properties
Grade |
304H |
Tensile Strength (Mpa) min |
515 |
Yield Strength 0.2% Proof (Mpa) min |
205 |
Elongation (% in 50 mm ) min |
40 |
Hardness |
|
Rockwell B (HR B) max |
92 |
Brinell (HB) max |
201 |
Grade Specification
Grade |
UNS No |
Old British BS |
En |
Euronorm No |
Name |
Swedish SS |
Japanese JIS |
304H |
S30409 |
304S51 |
|
1.4948 |
X2CrNi19-11 |
|
|
Physical Properties
Grade |
Density (kg/m3) |
Elastic modulus (Gpa) |
Mean coefficient of thermal expansion (m/m0C) |
Thermal conductivity (W/m.k) |
Specific Heat 0-1000C(J/kg.K) |
Electrical Resistivity (n.m |
|||
304H |
8000 |
193 |
0-1000C |
0-3150C |
0-5380C |
At 1000C |
At 5000C |
500 |
720 |
17.2 |
17.8 |
18.4 |
16.2 |
21.5 |
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