1.Hot-forging Stainless Steel uns s31050 bar
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what is the ss Grade 310 MoLn (UNS S31050)
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.
2. UNS S31050 Stainless steel 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 |
3.Character
Application
Production of carbamide.
Equal grades
UNS S31050, EN 1.4466, 00Cr25Ni20Mo2N, 25-22-2, X1CrNiMoN25-22-2
Standards
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ASTM A240 Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
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ASTM A182-A182M-13 Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
4.PICTURES SHOWING
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