Technical Consulting
Equipment and part identification, drawing review, material selection and manufacturing-feasibility support.
Cr-Mo Alloy Steel
Chromium-molybdenum alloy steel for balanced toughness and hardness in SAG/AG mill liners.
Wear Parts
Cr-Mo Alloy Steel Wear Parts
SAG Liners
SAG mill liners made from Cr-Mo alloy steel offer the optimal balance of hardness and toughness for semi-autogenous grinding. The alloy withstands both impact from grinding balls and abrasion from ore.
Cr-Mo Alloy SteelHRC 42-52
Good combination of hardness and toughness; ideal for SAG mill liners, grate bars and crusher frame liners under abrasiv...
ZG30CrMnMoHRC 45-55
Excellent balance of hardness and toughness; optimized for sizer tooth picks under combined impact + shear loading...
Compatible Equipment:Metso SAG/AG MillsFLSmidth SAG/AG MillsCITIC Heavy Industries SAG/AG/Ball Mills
Ball Mill Liners
Ball mill liners require consistent hardness and impact resistance for continuous grinding. ZG30CrNiMo with its higher Ni content provides 67% better toughness than standard Cr-Mo grades.
Cr-Mo Alloy SteelHRC 42-52
Good combination of hardness and toughness; ideal for SAG mill liners, grate bars and crusher frame liners under abrasiv...
ZG30CrNiMoHRC 45-55
Ni substitution for Mn increases toughness by 67% vs ZG30CrMnMo (AKV 20-25J vs 10-15J); essential for heavy tooth picks ...
AG Liners
AG (autogenous) mill liners experience high impact from large ore pieces. Cr-Mo alloy steel provides the toughness needed while maintaining adequate hardness for wear resistance.
Cr-Mo Alloy SteelHRC 42-52
Good combination of hardness and toughness; ideal for SAG mill liners, grate bars and crusher frame liners under abrasiv...
ZG30CrMnMoHRC 45-55
Excellent balance of hardness and toughness; optimized for sizer tooth picks under combined impact + shear loading...
Material Grades & Specifications
Cr-Mo Alloy Steel — Material Grades & Specifications
ZG30CrMnMoGB ZG30CrMnMo / Low-alloy Cr-Mo wear steel
HardnessHRC 45-55
ToughnessAKV 10-15J
Tensile≥ 850 MPa
Yield≥ 650 MPa
| Models | C | Si | Mn | Cr | Mo | Ni |
|---|---|---|---|---|---|---|
| ZG30CrMnMo | 0.26-0.34 | 0.40-0.80 | 0.90-1.30 | 0.90-1.30 | 0.15-0.25 | — |
Excellent balance of hardness and toughness; optimized for sizer tooth picks under combined impact + shear loading
ZG30CrNiMoGB ZG30CrNiMo / Ni-enhanced Cr-Mo alloy cast steel
HardnessHRC 45-55
ToughnessAKV 20-25J
Tensile≥ 900 MPa
Yield≥ 700 MPa
| Models | C | Si | Mn | Cr | Mo | Ni |
|---|---|---|---|---|---|---|
| ZG30CrNiMo | 0.26-0.34 | 0.40-0.80 | 0.60-1.00 | 0.90-1.30 | 0.15-0.25 | 0.90-1.30 |
Ni substitution for Mn increases toughness by 67% vs ZG30CrMnMo (AKV 20-25J vs 10-15J); essential for heavy tooth picks (>25kg) with higher bending moment
Cr-Mo Alloy SteelASTM A217 WC6/WC9 / GB ZG15CrMo
HardnessHRC 42-52
ToughnessAKV ≥ 25J
Tensile≥ 750 MPa
Yield≥ 550 MPa
| Models | C | Si | Mn | Cr | Mo | Ni |
|---|---|---|---|---|---|---|
| Cr-Mo Alloy Steel | 0.15-0.25 | 0.30-0.60 | 0.50-0.80 | 1.00-1.50 | 0.45-0.65 | — |
Good combination of hardness and toughness; ideal for SAG mill liners, grate bars and crusher frame liners under abrasive wear
Gallery
Cr-Mo Alloy Steel
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