13CrMo4-5
Data verified13CrMo4-5 is the EN 10028-2 1Cr-0.5Mo creep-resisting plate for boilers, hot vessels and power piping. It is the European near-counterpart of ASTM A387 Grades 11/12 and China’s 15CrMo family.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.08–0.18 |
| Si | ≤0.35 |
| Mn | 0.40–1.00 |
| P | ≤0.025 |
| S | ≤0.010 |
| Cr | 0.70–1.15 |
| Mo | 0.40–0.60 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Yield strength | ≥300 MPa (≤16 mm) |
| Tensile strength | 450–600 MPa |
| Service temperature | to ~570 °C |
| Density | 7.85 g/cm³ |
Heat treatment
Supplied normalized and tempered. PWHT after welding is required in pressure service.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.7335 (13CrMo4-5) |
| aisi | A387 Gr.11/12 (near) |
| jis | SCMV3 (near) |
| gb | 15CrMoG / 15CrMoR (near) |
Compare side by side: 13CrMo4-5 vs A387 Gr.11 · 13CrMo4-5 vs 15CrMoG
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Boiler drums, steam piping plate, petrochemical vessels, heat exchanger shells.
Processing: Weld with matching Cr-Mo consumables, preheat by thickness, and PWHT; creep-service fabrication follows EN 12952/13445 rules.
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Ask for a quotationVisit NasteelSource: EN 10028-2 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.