| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | Q235A 、Q235B A105 |
Q235A 、Q235B: Used for construction and bridge structural components, motor shafts, worm gears, piston rods, etc. A105: Used for pressure-bearing pipe fittings,valves,flanges,and other industrial components. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 10、 20、 25、 35、 45、 55 | Used for fasteners,pins,shafts,piston rods,NEV (New Energy Vehicle) components, heavy-duty vehicle brake discs, brake shafts, and other machined parts. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | Q355B | Used for high-strength components such as buildings, bridges, construction machinery and large equipment |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 20Cr、 40Cr、 45Cr | Used for carburized transmission gears,motor shafts,Grade 8.8～10.9 high-strength bolts,high-strength nuts,pins,shafts,bushings,and other industrial components. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 20CrMoA、 30CrMoA、 35CrMoA、 42CrMoA | Used for mechanical parts,gears,Grade 10.9～12.9 fasteners,and various pin shafts,etc. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 20CrMnTi、 30CrMnTi | For gears and mechanical parts, etc. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 40Mn、 50Mn、 20Mn2、 40Mn2 | Used for automotive chassis parts, support shafts, “four-wheel and one-track” undercarriage components of excavators and loaders, and grinding media for metallurgical and cement industries. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 35MnB (H)、 40MnB (H) | Used for undercarriage components of crawler-type construction machinery and excavator bucket teeth,etc. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 20MnTiB | Used for sub-Grade-10.9 fasteners, gears, shafts, pins, and threaded rods. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 25MnNi | Used for high-speed EMU door bolts. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 4140、 B7、 SCM440、 42CrMo4 | For Grade 12.9 fasteners,threaded rods for petrochemical applications,etc. |
| Specification (mm) | Grade | Use |
|---|---|---|
| B2-1、 B2-2、 B2-3: Φ30～Φ120 B3-1、B3-2: Φ75～Φ120 |
B2-1、 B2-2、 B2-3 B3-1、B3-2 |
Used for grinding steel balls for metallurgical and cement applications. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 10、 20、 37Mn5 | Used for Seamless steel pipes |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | S46C、 S55C | Used for ordinary and precision machine tool guideways. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 20CrMnTiH、 20CrMnTiH2、 20CrMnTiH5、 20CrMnTiH6、 20CrMnSi、 16MnCrS5、 20MnCr5、 18CrMnMoB | Used for general carburized gears, gear shafts, NEV (New Energy Vehicle) gear applications, and wind power transmission gears |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ60～Φ180 | 30CrMnSiTi、 30CrMnSiA、 30CrMnSiMo | Used for forged components such as excavator bucket teeth. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 60Si2Mn、 50CrV、 51CrMoV4 | Used for general springs, construction-machinery springs, and automotive springs. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 30MnVS、 38MnVS、 S36CrVIS2 | Used for piston rod shafts, connecting rod-type components, and similar shaft parts. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 718、H13 | Used for hot-work tooling and punches. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | GCr15、etc. | Used for various mechanical bearings. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 20Mn2S、45S、12T5 | Used for manufacturing small parts, automotive components, and shaft bushings ,etc. |
| Specification (mm) | Grade | Use |
|---|---|---|
| Φ20～Φ180 | 42CrMo、30CrBA、34CrMo4 | Used for wind power bolts, nuts and related fasteners. |
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