Hydraulic and pneumatic cylinder seamless steel pipe with best price
Production Description:
| Honed tube for hydraulic cylinder and pneumatic cylinder | ||||
| Manufacturer | Shandong Jianning Metals Co.,Ltd | |||
| Standard | DIN2391 EN10305 | |||
| Material | ST44 ST45 ST52 E355 STKM13C | |||
| Heat treatment | BK+S | |||
| Specification | Outer diameter(mm) | Inner diameter(mm) | ||
| 50-300mm | 40-250 | |||
| I.D Tolerance | H8-H9 | |||
| Length | 3-9m | |||
| Straightness | 1/1000 | |||
| ID roughness | RA 0.4micron(max) | |||
| Technology | Honed & SRB(SKIVED AND ROLLER BURNISHED ) | |||
| Scope | Hydraulic cylinder tube for swivel crane, injection machine and construction machine application | |||
Chemical composition of Material:
| Steel grade | Chemical composition,% | |||||
| C | Si | Mn | P | S | Cr | |
| ≤ | ||||||
| 20# | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.25 |
| 16Mn | ≤0.2 | ≤0.5 | 1.00-1.60 | 0.03 | 0/03 | 0.25 |
| ST52(E355) | ≤0.22 | ≤0.55 | ≤1.6 | 0.025 | 0.025 | 0.25 |
| SAE1026 | 0.22-0.28 | 0.15-0.35 | 0.6-0.9 | 0.04 | 0.05 | / |
Mechanical Property of Material:
| Delivery condition | cold finished(hard)(BK) | Cold drawn and stress-relieved(BK+S) | |||
| Steel grade | Rm MPa | Elongation A5(%) | Rm MPa | ReH MPa | Elonggation A5(%) |
| 20# | ≥550 | ≥8 | ≥520 | ≥375 | ≥15 |
| 16Mn | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
| ST52 | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
| SAE1026 | ≥640 | ≥5 | ≥600 | ≥510 | ≥12 |
Main Production Progress:
| Raw material | → | Cold drawn | → | Heat treatment | → | Honed & SRB | → | Packing |
| BK+S |
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