Product Description
1. Description: Honed steel tube is a kind of smooth bore steel tube used to manufacture hydraulic cylinder barrels that is the core part of a piece of hydraulic cylinder.
FAQ:
What are the main business areas of your company?
1.We have our own seamless steel pipe production enterprise --ZGL Metal Manufacturing Co., Ltd., and also a subsidiary company specializing in steel pipe machining -- Kane Machinery.At the same time we have a fixed cooperation factory.
2.What are our advantages compared with other industries?
We set steel pipe production and processing and integration, to bring more convenience to customers, reduce costs.
1. Description: Honed steel tube is a kind of smooth bore steel tube used to manufacture hydraulic cylinder barrels that is the core part of a piece of hydraulic cylinder.
2. Commodity: Honed steel tube for hydraulic cylinder
3. Size range: 40mm*30mm-580mm*500mm
4. Available steel grade:
| SAE/AISI: | SAE1020, SAE1026, SAE1045, SAE4130, SAE4140 |
| DIN: | ST52, ST52.3, ST52.4 |
| EN: | E355, C45E, 25CrMo4, 42CrMo4, CK45, S45C, E410, E470 |
| GB: | 20#, 45#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn, |
5. Manufacture method: Cold rolled, hydraulic cold drawn, hot rolled+deep hole boring
6. Delivery condition:
| BK | BKW | BKS | GBK | NBK | Q+T |
| +C | +LC | +SR | +A | +N | |
| Cold rolled | Cold drawn | Stress relieved | Annealed | Normalized | Quenched+Tempered |
7. Bore treatment: Honing, skiving&roller burnishing
8. Bore roughness control: Ra0.25um max or Ra0, 35um max for honed tubes, Ra0.25um max for skived&roller burnished tubes.
9. End finish: Plain ends with square cuts, free of burrs for honed tubes. Little bevelled ends for skived&roller burnished tubes.
10. Standard export packing: In bundles tied with steel strips. Int&ext oil coating. End plastic caps. External packing by PVC bags and knit bags.
11. Customized packing and marking can be provided upon request.
Dimension tolerance
Material & Chemical Composition
DIN2391 standard ST52, EN10305 standard E355, 16Mn, ASTM A106B, C20/20#, CK45
| Material | C | Si | Mn | S(≤) | P(≤) | Cr | Ni | Mo | other |
A106B / C20# | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | ≤0.25 | ≤0.30 | Cu≤0.25 | |
| CK45# | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | ≤0.25 | ≤0.30 | Cu≤0.25 | |
| Q345B | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.040 | 0.040 | V:0.02-0.15 | Nb:0.015-0.06 | Ti:0.02-0.20 | Alt≥0.015 |
| ST52 E355 16Mn | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.045 | 0.045 | V:0.02-0.15 | Nb:0.015-0.06 | Ti:0.02-0.20 | 16Mn |
| 25Mn | 0.22-0.30 | 0.17-0.37 | 0.70-1.00 | 0.035 | 0.035 | ≤0.25 | ≤0.25 | ||
| 27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | 0.030 | 0.030 | ||||
| 42CrMo | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.025 | 0.025 | 0.90-1.20 | 0.15-0.25 |
Dimension tolerance
| Inner Dia (mm) | ID Tolerance (mm) | WT Tolerance (mm) | ||||
| H7 | H8 | H9 | H10 | H11 | ||
| 30 | +0.021/0 | +0.038/0 | +0.052/0 | +0.084/0 | +0.130/0 | ±5-10% |
| >30-50 | +0.025/0 | +0.039/0 | +0.062/0 | +0.100/0 | +0.160/0 | |
| >50-80 | +0.030/0 | +0.046/0 | +0.074/0 | +0.120/0 | +0.190/0 | |
| >80-120 | +0.035/0 | +0.054/0 | +0.087/0 | +0.140/0 | +0.220/0 | |
| >120-180 | +0.040/0 | +0.063/0 | +0.100/0 | +0.160/0 | +0.250/0 | |
| >180-250 | +0.046/0 | +0.072/0 | +0.115/0 | +0.185/0 | +0.290/0 | |
| >250-315 | +0.052/0 | +0.081/0 | +0.130/0 | +0.210/0 | +0.320/0 | |
| >315-400 | +0.057/0 | +0.089/0 | +0.140/0 | +0.230/0 | +0.360/0 | |
FAQ:What are the main business areas of your company?
1.We have our own seamless steel pipe production enterprise --ZGL Metal Manufacturing Co., Ltd., and also a subsidiary company specializing in steel pipe machining -- Kane Machinery.At the same time we have a fixed cooperation factory.
2.What are our advantages compared with other industries?
We set steel pipe production and processing and integration, to bring more convenience to customers, reduce costs.