Enhanced Super 13Cr martensitic stainless steel offering superior corrosion resistance and mechanical properties for critical oil & gas completion equipment.
Superior to standard 13Cr and 420 Modified
Excellent performance in CO2 and chloride environments
Ideal for downhole and wellhead applications
Low carbon content enables better fabrication
13Cr-5Ni-2Mo + Cu + N
General purpose Super 13Cr applications
12Cr-6Ni-2Mo + Ti + V
Welded constructions and fabrications
12Cr-6Ni-2Mo + Ti + V
High-performance applications
13Cr-5Ni-2Mo + Cu + N
| Element | Min | Max |
|---|---|---|
| Carbon(C) | - | 0.05 |
| Silicon(Si) | - | 0.50 |
| Manganese(Mn) | - | 1.00 |
| Phosphorus(P) | - | 0.020 |
| Sulfur(S) | - | 0.005 |
| Chromium(Cr) | 12.00 | 15.00 |
| Nickel(Ni) | 4.00 | 7.00 |
| Molybdenum(Mo) | 1.50 | 2.50 |
| Copper(Cu) | 0.30 | 1.00 |
| Nitrogen(N) | 0.02 | 0.12 |
| Iron(Fe) | Balance | Balance |
12Cr-6Ni-2Mo + Ti + V
| Element | Min | Max |
|---|---|---|
| Carbon(C) | - | 0.05 |
| Silicon(Si) | - | 0.50 |
| Manganese(Mn) | - | 1.00 |
| Phosphorus(P) | - | 0.020 |
| Sulfur(S) | - | 0.005 |
| Chromium(Cr) | 11.50 | 13.50 |
| Nickel(Ni) | 5.50 | 7.50 |
| Molybdenum(Mo) | 1.50 | 2.50 |
| Titanium(Ti) | 0.01 | 0.50 |
| Vanadium(V) | 0.05 | 0.50 |
| Iron(Fe) | Balance | Balance |
Heat Treated Conditions
| Condition | UTS | Yield | Elongation | CVN Impact | NACE Status |
|---|---|---|---|---|---|
| 95 KSI 0.2% P.S. | 105 KSI Min | 95 KSI Min | 18% | 40 J @ -60°C | NACE MR0175 Approved |
| 110 KSI 0.2% P.S. | 125 KSI Min | 110 KSI Min | 15% | 55 J @ -10°C | User Approval Required |
| Environment | Resistance | Notes |
|---|---|---|
| CO2 Environments | Excellent | Enhanced resistance vs standard 13Cr |
| Chloride Solutions | Good | Improved pitting resistance |
| Low H2S Concentrations | Good | Suitable for low sour service |
| Sweet Corrosion | Excellent | Superior to carbon steels |
| General Corrosion | Very Good | Atmospheric and mild acids |
| Stress Corrosion Cracking | Good | Better than standard 13Cr |
Higher carbon martensitic stainless
Basic martensitic stainless steel
Precipitation hardening stainless
Get expert guidance on UNS variant selection and end-user approvals for your completion equipment applications.