EN10305-2 ST37.4 Cold Drawn Hydraulic Cylinder Tube for High-Pressure Hydraulic Systems
Our EN10305-2 ST37.4 hydraulic cylinder round cold drawn welded precision steel tube is a high-quality, precision-crafted tube designed for hydraulic systems and cylinders. Manufactured from cold-drawn and welded steel, this tube features tight tolerances, excellent mechanical properties, and a smooth inner surface. Ideal for use in hydraulic systems, industrial equipment, and machinery where high pressure resistance and precise control are required.
| Outside Diameter (Inch) | Wall Thickness (Inch) | Outside Diameter (mm) | Wall Thickness (mm) |
|---|---|---|---|
| From 1/2 to 5 | From SCH40 to XXS | From 25 to 356 | From 4 to 80 |
| Length: From 2m to 12.5m in accordance with customers' requirements | |||
| Chinese | American | German |
|---|---|---|
| 10# | ASTM A53-A | St37 DIN1626 |
| ASTM A106-A | St37-2 DIN17175 | |
| ASTM A179-C | St35.8 DIN17175 | |
| ASTM A192 | St35.8 DIN17175 | |
| 20# | ASTM A53-B | St42-2 DIN1626 |
| ASTM A106-B | St45-8 DIN17175 | |
| ASTM A178-C | St45-4 DIN1629 | |
| 45# | ASTM A1045 | CK45 |
| 16Mn | ASTM A210-C | St52 DIN1629 |
| 37Mn5 | J55 | |
| 27SiMn | ||
| CrMo | ASTM 4135,4150 | CrMo4 DIN17212 |
| 40Cr | ASTM 5140 | 41Cr4 |
- NBK(+N): After cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium
- GBK(+A): After cold forming, annealing in non-oxidizing medium protective gas
- BK(+C): Final heat treatment after cold forming, therefore small steel pipe plastically, the plastic degree does not guarantee
- BKW(+LC): After final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation (bending, flaring)
- BKS(+SR): Have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again
- Fuel injection lines/nozzles for diesel or gasoline engine
- Compressed natural gas (CNG) tube
- Drive transmission: steering column elements
- Gear shafts, hand brake, front axles, airbag inflators, stabilizers, seat fasteners, front-wheel drive shafts
- Mechanical structure pipe parts in automobile, motorcycles and vehicles
- Hydraulic circuits, pneumatic lines and hydraulic suspension
- Hydraulic cylinders
Hydraulic Cylinder Tube ST52 and ST52.3 with excellent machinability and weldability. Supplied seamless or welded, cold drawn & stress relieved (BK+S), with yield strength over 520 MPa. The inside diameter is honed and oiled with the tube ends capped for protection.
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