Introduction
CE8MN is a duplex stainless steel grade specified in ASTM A351 for pressure-containing cast components. Casting process options include Investment Casting, Shell Molding Casting and Sand Casting, subject to the applicable specification and component requirements.
| Field | Value |
|---|---|
| Designation | CE8MN |
| Material Type | Stainless Steel |
| Sub Type | Duplex Stainless Steel |
| Product Form | casting |
Manufacturing Process
Investment Casting
Shell Molding Casting
Sand Casting
Equivalent Grades
N/A
Similar Materials
N/A
Reference Standards
| Standard | Standard Title | Edition | Specification | Identifier |
|---|---|---|---|---|
| ASTM A351 | Standard Specification for Castings, Austenitic, Austenitic-Ferritic (Duplex), for Pressure-Containing Parts | 03 | CE8MN | — |
Related Casting Products
Physical Properties
N/A
Chemical Composition
| Element | ASTM A351Edition 03 |
|---|---|
| C | ≤ 0.08 % |
| Si | ≤ 1.50 % |
| Mn | ≤ 1.00 % |
| P | ≤ 0.040 % |
| S | ≤ 0.040 % |
| Cr | 22.5–25.5 % |
| Ni | 8.0–11.0 % |
| Mo | 3.0–4.5 % |
| N | 0.10–0.30 % |
Heat Treatment
ASTM A351–03 · Heat treatment
| Step | Operation | Temperature | Cooling |
|---|---|---|---|
| 1 | Heat treat | ≥ 2050 °F / ≥ 1120 °C | — |
| 2 | Quench or rapid cool | — | water quench or rapid cooling by other means |
Mechanical Properties
| Property | ASTM A351Edition 03 |
|---|---|
| Tensile Strength | ≥ 95 ksi ≥ 655 MPa |
| Yield Strength (Rp0.2) | ≥ 65 ksi ≥ 450 MPa |
| Elongation | ≥ 25.0 % |
Welding Conditions
N/A
Applications
Typical casting applications include pressure-containing cast components such as valve bodies, flanges and fittings, subject to grade-specific service requirements.
Last Updated: October 13, 2026