Alloy31 is one kind of azotic contenting iron nichrome molybdenum alloy, the performance is situated between the super austenite stainless steel and the nickel base alloy, The presence of copper increases its resistance to sulfuric acid. The alloy is used in the chemical and petrochemical processing industry . Alloy tubes are cold worked to high strength levels for downhole service in moderately corrosive deep sour gas wells.
Alloy 31 Chemical Composition|
Alloy |
% |
Ni |
Cr |
Fe |
Mo |
N |
C |
Mn |
Si |
S |
Cu |
P |
|
Alloy31 |
Min. |
30.0 |
26.0 |
Bal |
6.0 |
0.15 |
|
|
|
|
1.0 |
|
|
Max. |
32.0 |
28.0 |
7.0 |
0.2 |
0.015 |
2.0 |
0.3 |
0.01 |
1.4 |
0.02 |
| Density | 8.10 g/cm³ |
| Melting point |
1350-1370 ℃
|
| Status |
Tensile strength Rm N/mm² |
Yield strength Rp 0. 2N/mm² |
Elongation As % |
Brinell hardness HB |
| Solution treatment | 650 | 350 | 35 | ≤363 |
ASTM B 668, B709, B 829,ASME SB-668, SB-709, SB-829
Round bars/Flat bars/Hex bars, Size From 8.0mm-320mm, Used for bolts,fastners and other spare parts
Supply in welding wire and spring wire in coil form and cut length.
Forging Ring or gasket,size can be customized with bright surface and precision tolerance
Widths up to 1500mm and lengths up to 6000mm,Thickness from 0.1mm to 100mm.
Standards size and customized dimension can be produced by us with small tolerance
Various Kind of flanges and customized drawing can be produced by us with Precision tolerance
Soft condition and hard condition with AB bright surface, width up to 1000mm
Alloy 31 materials in forms of Bolts,screws,flanges and other fasterners, according to clients specification.
Alloy31 is one kind of azotic contenting iron nichrome molybdenum alloy, the performance is situated between the super austenite stainless steel and the nickel base alloy
1.workability
2.High tensile strength,endurance strength,creep strength and rupture strength at 700℃.
3.High inoxidability at1000℃.
4.Steady mechanical performance in the low temperature.
Alloy 31 suit applies in chemistry and the petroleum chemical industry, the environment project and the oil,gas,and so on industrial fields..