G32NiCrMo8-5-4 (EN 1.6570) Low-Alloy Steel Casting Material
Low-Alloy Steel
Introduction
G32NiCrMo8-5-4 is a low-alloy steel casting grade covered by EN 10293. Typical family applications include gear-related castings, couplings, housings, connecting parts and structural supports.
| Field | Value |
|---|---|
| Designation | G32NiCrMo8-5-4 (EN 1.6570) |
| Material Type | Alloy Steel |
| Sub Type | Low-Alloy 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 |
|---|---|---|---|---|
| EN 10293 | Steel castings — Steel castings for general engineering uses | 2015 | G32NiCrMo8-5-4 | — |
Related Casting Products
Physical Properties
N/A
Chemical Composition
| Element | EN 10293Edition 2015 · wt.%Cast analysis |
|---|---|
| C | 0.28–0.35 |
| Si | ≤ 0.60 |
| Mn | 0.60–1.00 |
| P | ≤ 0.020 |
| S | ≤ 0.015 |
| Cr | 1.00–1.40 |
| Ni | 1.60–2.10 |
| Mo | 0.30–0.50 |
| Cu | ≤ 0.30[1] |
| V | ≤ 0.05[1] |
Notes
EN 10293 · Edition 2015
[1] Cu/V: Applies only where unspecified in unless otherwise agreed; no intentional addition except for finishing the heat.
Heat Treatment
EN 10293–2015 · +QT1
| Step | Operation | Temperature | Cooling |
|---|---|---|---|
| 1 | Informative: quenching | 880–920 °C | air or liquid |
| 2 | Informative: tempering | 600–650 °C | — |
EN 10293–2015 · +QT2
| Step | Operation | Temperature | Cooling |
|---|---|---|---|
| 1 | Informative: quenching | 880–920 °C | air or liquid |
| 2 | Informative: tempering | 500–550 °C | — |
Mechanical Properties
Core Mechanical Properties
Conditions are not identical. Compare each stated condition and applicability separately.
EN 10293 — 2015 · Table 3 — Normative
| Property | +QT1 | +QT2 |
|---|---|---|
| Yield Strength (Rp0.2) | ≥ 700 MPa[1] ≥ 650 MPa[2] | ≥ 950 MPa |
| Tensile Strength | 850–1000 MPa[1] 820–970 MPa[2] | 1050–1200 MPa |
| Elongation | ≥ 16 %[1] ≥ 14 %[2] | ≥ 10 % |
| Impact Energy | ≥ 50 J[1] ≥ 35 J[2] | ≥ 35 J |
- Test block of relevant thickness; maximum test-block wall thickness 150 mm; Room temperature; Properties apply to the casting up to the specified maximum wall thickness; above this, foreseeable lowering shall be agreed.
- +QT2: wall thickness ≤ 100 mm
Notes
EN 10293 · Edition 2015
[1] Yield Strength (Rp0.2)/Tensile Strength/Elongation/Impact Energy: wall thickness ≤ 100 mm
[2] Yield Strength (Rp0.2)/Tensile Strength/Elongation/Impact Energy: wall thickness ≤ 250 mm
Welding Conditions
EN 10293–2015
| Requirement | Value |
|---|---|
| Preheat | 200–350 °C[1] |
| Interpass Temperature | ≤ 400 °C |
| Post-weld Heat Treatment | ≥ 560 °C |
Notes
EN 10293 · Edition 2015
[1] Preheat: Preheat depends on casting geometry, thickness and climatic conditions.
Applications
For low-alloy steel EN 10293 G32NiCrMo8-5-4, typical cast components in this material family include gear-related castings, couplings, housings, connecting parts and structural supports. Applications include industrial machinery, mining, agricultural and railway equipment, construction machinery and power-transmission assemblies. The specified material condition and component duty remain important; no unverified wear-life or low-temperature rating is implied.
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