QT alloy steel for hydraulic cylinders, wind shafts, and heavy-duty rotating parts.
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Five core steel grades for industrial shafts, rods, gears, and pressure components.
Our portfolio centers on alloy steel round bars and medium carbon bar stock for hydraulic systems, wind power, heavy machinery, and general mechanical processing.
Portfolio focus
Stable supply, practical processing, export-ready support.
Grades are selected for strength, machinability, and predictable delivery conditions.
Overview
Choose the grade that matches the load case, machining route, and delivery condition.
Each product page summarizes the key data buyers normally need first: intro, equivalents, composition, performance, size range, applications, and inquiry direction.
General-purpose alloy structural steel for shafts, gears, bolts, and machine parts.
Open productMedium carbon bar stock with good machinability and balanced wear resistance.
Open productTough alloy steel used for gear shafts, heavy-duty shafts, and mining or oil & gas components.
Open productCr-Mo alloy steel suitable for high-pressure equipment and fasteners.
Open productRound bar supply can be matched with QT, black, peeled, rough machined, or precision machined delivery.
Send inquiryComparison
Shortlist the grade by strength, hardness, and application intent.
| 42CrMo4 | Critical hydraulic and rotating parts needing high fatigue resistance. |
|---|---|
| 40Cr | General mechanical shafts and gear components. |
| CK45 / 1045 | Machined parts, bolts, studs, and general machinery. |
| 34CrNiMo6 | Very high load-bearing shafts and heavy duty components. |
| 35CrMo | Pressure equipment, fasteners, and petroleum use. |
- Diameter, length, and surface condition
- Delivery condition such as QT, annealed, or normalized
- Equivalent standard or grade matching
- Testing and inspection expectations
- Project destination and packing requirements
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