GS-33 NiCrMo 7 4 4 | 1.6740 Material Datasheet
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| Material Number | Material Name | Material Number (single) | Standard | Scope | Standard Status | Country | VDA 231-106 classification | Application temperature [°C] | |
|---|---|---|---|---|---|---|---|---|---|
| 1.6740 (DIN 17205 : 1992-04) | GS-33 NiCrMo 7 4 4 | 1.6740 | DIN 17205 : 1992-04 | DIN 17205 : 1992-04 replaced by DIN EN 10293 : 2005-06 | Replaced | Germany | 1.1.1 | ≤ 300 | 1) |
| 1) Remark: The material GS-33 NiCrMo 7 4 4 is applicable up to 300 degrees C. The material is chiefly applied for defense equipment. |
Chemical Composition
| C [%] | Cr [%] | Mn [%] | Mo [%] | Ni [%] | P [%] | S [%] | Si [%] | Remainder | |
|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| 1) Source: blur |
Material Compliance
| REACh | RoHS |
|---|---|
| blur | blur |
Mechanical Properties
| Semi-finished Product | Condition | Nominal Size [mm] | Temperature [°C] | Tensile Strength [MPa] | Yield Strength (0.2% offset) [MPa] | Elongation A [%] | |
|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | blur | blur | 1)2) |
| 1) Source: blur | |||||||
| 2) Remark: blur |
Physical Properties
| Temperature [°C] | Density [g/cm³] | Young's Modulus [GPa] | Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] | |
|---|---|---|---|---|
| blur | blur | blur | 1)2) | |
| blur | blur | blur | 1)3) | |
| blur | blur | blur | 1)3) | |
| blur | blur | blur | 1)3) | |
| 1) Source: blur | ||||
| 2) Remark: blur | ||||
| 3) Remark: blur |
Toughness Data (Impact)
| Semi-finished Product | Condition | Nominal Size [mm] | Temperature [°C] | Specimen Shape | Notch Impact Energy [J] | |
|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | blur | 1)3) |
| blur | blur | blur | blur | blur | blur | 1)4) |
| blur | blur | blur | blur | blur | blur | 1)5) |
| blur | blur | blur | blur | blur | blur | 1)4) |
| 1) Source: blur | ||||||
| 2) Remark: blur | ||||||
| 3) Remark: blur | ||||||
| 4) Remark: blur | ||||||
| 5) Remark: blur |
FKM Guideline Fatigue Strength
| Semi-finished Product | Condition | Nominal Size [mm] | Tensile Strength [MPa] | Yield Strength [MPa] | Fatigue Limit under rev. Tension-Compression Stresses [MPa] | Fatigue Strength under pulsating Tensile Stresses [MPa] | Bending Fatigue Strength [MPa] | Shear Fatigue Strength [MPa] | Torsion Fatigue Strength [MPa] | |
|---|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1)2) |
| 1) Source: blur | ||||||||||
| 2) Remark: blur |
Heat Treatment
| Heat Treatment | Step | Temperature [°C] | Medium | |
|---|---|---|---|---|
| blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | 1)3) |
| blur | blur | blur | blur | 1)4) |
| blur | blur | blur | 1)2) | |
| blur | blur | blur | 1)3) | |
| blur | blur | blur | 1)4) | |
| 1) Source: blur | ||||
| 2) Remark: blur | ||||
| 3) Remark: blur | ||||
| 4) Remark: blur |
Producer/Supplier/Trade names
| Tradename | Supplier |
|---|---|
| DUX G 6740 | SCHMOLZ + BICKENBACH GUSS GmbH, Krefeld |
| GS-25 CrMo 4 | SCHMOLZ + BICKENBACH GUSS GmbH, Krefeld |
| GS-25 CrMo 4 | voestalpine AG, Linz |
| GS-33 NiCrMo 7 4 4 | Schmiedewerke Gröditz GmbH, Gröditz |