CE8MN Duplex Stainless Steel Casting Material
Duplex Stainless Steel
Introduction
CE8MN is a duplex stainless steel grade covered by ASTM A351. Typical applications include pump and valve castings in chemical processing, petroleum refining and power generation.
| 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 Materials
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
Core Mechanical Properties
ASTM A351 — 03 · Table 3 — Normative
| Property | heat treated |
|---|---|
| Tensile Strength | ≥ 95 ksi ≥ 655 MPa |
| Yield Strength (Rp0.2) | ≥ 65 ksi ≥ 450 MPa |
| Elongation | ≥ 25.0 % |
Welding Conditions
N/A
Applications
Duplex stainless steel ASTM A351 Grade CE8MN is used for pump and valve castings in chemical processing, petroleum refining and power generation. Foundry application guidance also includes marine equipment. Other cast components used in this material family include pump casings, impellers, covers and valve bodies.
Applications include water treatment, chemical processing, selected marine systems, desalination and pulp-and-paper pumping equipment. The appropriate duplex grade depends on the actual water chemistry and operating conditions.
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Email Us for a QuoteLast Updated: November 6, 2026