13CrMo4-5
1.7335Low-alloy Cr-Mo steel for elevated-temperature service. Good creep resistance up to 500°C. The standard grade for boiler tubes, headers, superheater tubes, and pressure equipment in power generation. Lower alloy content than 10CrMo9-10.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | ASTM | USA | ASTM A387 Gr 12 | K11562 | REF |
| 🇪🇺 | EN | Europe | 13CrMo4-5 | 1.7335 | 100% |
| 🇪🇺 | DIN | Europe | 13CrMo44 (old) | — | 98% |
| 🇺🇸 | ASTM | USA | ASTM A335 P12 | K11562 | 90% |
Sources: ASTM A387, EN 10028-2, DIN 17175, ASTM A335
Mechanical properties
Compatibility verdict
13CrMo4-5 and 13CrMo44 (old): 98% composition match
Related materials
42CrMo4
1.7225High-strength quenched and tempered chromium-molybdenum steel. Widely used for shafts, gears, crankshafts, connecting rods, and high-strength bolts. Excellent hardenability and good fatigue resistance.
34CrNiMo6
1.6582High-strength quenched and tempered Cr-Ni-Mo steel. Excellent hardenability and toughness, suitable for large cross-sections. Used for heavy-duty shafts, gears, turbine parts, and aerospace components.
16MnCr5
1.7131Low-carbon case-hardening steel with manganese and chromium. Excellent for carburizing to produce a hard, wear-resistant surface with a tough core. Standard choice for gears, camshafts, piston pins, and transmission components.
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