ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
| Payment Terms | T/T, L/C at sight |
| Supply Ability | 3000 Tons per Month |
| Delivery Time | 15-25 working days after order confirmation |
| Packaging Details | Individual tube wrapping with VCI rust-proof paper, plastic end caps, bundled in steel frame crates |
| Material Grade | DIN 2391 ST52 / 1.0580 / E355 |
| Outer Diameter | 120mm |
| Wall Thickness | 20mm |
| Inner Diameter | 80mm after honing |
| Manufacturing Process | Seamless Cold Drawn + Skived & Roller Burnished / Honed |
| ID Surface Roughness | Ra ≤0.4μm (honing) / Ra ≤0.2μm (SRB) |
| ID Tolerance | H8 / H9 per ISO 286 |
| Straightness | ≤1mm per 1000mm |
| NDT Testing | 100% Ultrasonic Testing, Dimensional Inspection |
| Brand Name | WNRLN |
| Model Number | ST52-HONED-120x20 |
| Place of Origin | Shandong, China |
| Certification | ISO 9001:2015, DIN EN 10305-1 |
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Product Specification
| Payment Terms | T/T, L/C at sight | Supply Ability | 3000 Tons per Month |
| Delivery Time | 15-25 working days after order confirmation | Packaging Details | Individual tube wrapping with VCI rust-proof paper, plastic end caps, bundled in steel frame crates |
| Material Grade | DIN 2391 ST52 / 1.0580 / E355 | Outer Diameter | 120mm |
| Wall Thickness | 20mm | Inner Diameter | 80mm after honing |
| Manufacturing Process | Seamless Cold Drawn + Skived & Roller Burnished / Honed | ID Surface Roughness | Ra ≤0.4μm (honing) / Ra ≤0.2μm (SRB) |
| ID Tolerance | H8 / H9 per ISO 286 | Straightness | ≤1mm per 1000mm |
| NDT Testing | 100% Ultrasonic Testing, Dimensional Inspection | Brand Name | WNRLN |
| Model Number | ST52-HONED-120x20 | Place of Origin | Shandong, China |
| Certification | ISO 9001:2015, DIN EN 10305-1 | ||
| High Light | ST52 Honed Cylinder Tube ，DIN 2391 Precision Grade ，120mm Hydraulic Barrel | ||
DIN 2391 ST52 (1.0580 / E355) cold drawn honed seamless precision steel tubes are the industry standard for hydraulic cylinder barrel manufacturing. With a precisely honed or skived-and-roller-burnished (SRB) inner surface, these tubes deliver the tight dimensional tolerances and surface finish required for reliable hydraulic piston seal performance.
| Parameter | Specification |
|---|---|
| Standard | DIN 2391 / EN 10305-1 |
| Material Grade | ST52 / E355 / 1.0580 |
| Tensile Strength | ≥520 MPa |
| Yield Strength | ≥355 MPa (at wall thickness ≤16mm) |
| Elongation | ≥22% (longitudinal) |
| ID Surface Hardness | Burnished surface: 10-15% hardness increase |
Hydraulic cylinder barrels, pneumatic cylinders, telescopic cylinders, construction machinery cylinders (excavator, loader, crane), agricultural equipment hydraulic systems, marine steering cylinders, and industrial press cylinders.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1985
Total Annual:
100000000-110000000
Employee Number:
600~700
Ecer Certification：
Verified Supplier
Zhangjiagang Hua Dong Energy Technology Co., Ltd. is a high-tech enterprise specialized in producing all kinds of stainless, carbon and alloy steel tubes and pipes, steel plates which are widely used in the field of boiler&heat exchanger, energy, petrochemical, mining, food, paper, gas and fluid... Zhangjiagang Hua Dong Energy Technology Co., Ltd. is a high-tech enterprise specialized in producing all kinds of stainless, carbon and alloy steel tubes and pipes, steel plates which are widely used in the field of boiler&heat exchanger, energy, petrochemical, mining, food, paper, gas and fluid...
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