35CrMo
Data verified35CrMo is the GB/T 3077 Cr-Mo steel between 4130 and 4140 in carbon, matching AISI 4135 and JIS SCM435 — a staple Chinese grade for Q&T shafts and high-strength fasteners.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.32–0.40 |
| Si | 0.17–0.37 |
| Mn | 0.40–0.70 |
| P | ≤0.035 |
| S | ≤0.035 |
| Cr | 0.80–1.10 |
| Mo | 0.15–0.25 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Tensile strength | ≥985 MPa (GB/T 3077 reference Q&T) |
| Yield strength | ≥835 MPa (reference) |
| Density | 7.85 g/cm³ |
Heat treatment
Quench 850 °C oil; temper 500–550 °C class per GB/T 3077 reference practice.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.7220 (34CrMo4, near) |
| aisi | 4135 |
| jis | SCM435 |
| gb | 35CrMo (GB/T 3077) |
Compare side by side: 35CrMo vs 4135 · 35CrMo vs 34CrMo4
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Shafts, high-strength bolts, connecting rods, oilfield and pressure parts.
Processing: As 4135/34CrMo4; weld with preheat and qualified procedure.
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Ask for a quotationVisit NasteelSource: GB/T 3077 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.