Mar 7 2013
Topics Covered
Introduction
Chemical Composition
Mechanical Properties
Introduction
Stainless steel grade 310 MoLN is a fully austenitic stainless steel that does not have intermetallic phases such as intergranular carbide precipitations. The 310MoLN steel grade has an optimized chemical composition designed specifically for applications in urea plants. The nitrogen in the chemical composition helps to stabilize and strengthen the austenitic phase. This material provides improved corrosion-resistance in urea carbamate environments such as high-pressure strippers.
The following datasheet provides an overview of stainless steel grade 310 MoLN.
Chemical Composition
The chemical composition of stainless steel grade 310 MoLN is outlined in the following table.
|
Element |
Content (%) |
|
Iron, Fe |
Balance |
|
Chromium, Cr |
24-26 |
|
Nickel, Ni |
21-23 |
|
Molybdenum, Mo |
2-2.50 |
|
Manganese, Mn |
≤ 2 |
|
Nitrogen, N |
0.10-0.16 |
|
Silicon, Si |
≤ 0.70 |
|
Phosphorous, P |
0.025 |
|
Carbon, C |
≤ 0.020 |
|
Sulfur, S |
≤ 0.010 |
Mechanical Properties
The mechanical properties of stainless steel grade 310 MoLN are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
540-740 MPa |
78320- 107327 psi |
|
Proof strength |
250 MPa |
36259 psi |
|
Modulus of elasticity (20°C) |
195 GPa |
28282 ksi |
|
Elongation at break (In 2", 50% cold worked) |
40% |
40% |
|
Hardness, Brinell |
95 |
95 |