NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
NEW-ERA STEEL TUBE HOLDING NINGBO PIPEWAY TRADE CO.,LTD
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Product Name: DIN2391 St52 BK / BKS Seamless Round Honed Steel Tube for Hydraulic Cylinder
Size Range: OD: 40-500mm, WT: 1-30mm, Length: 5.8m/6m, maximal 11.8m
| Product Name | DIN2391 St52 BK/BKS Hydraulic Cylinder Pipe Honed Steel Tube |
| Material | St35, St45, St52 |
| Delivery Condition | BK, BKS |
| Standard | DIN2391 |
| Size Range | OD: 40-500mm, WT: 1-30mm |
| Application | High precision purpose, auto parts, oil cylinder, etc |
| Round Billet | Bao Steel, Xingcheng Steel, Zhongtian Steel |
| Keyword | Honing Steel Tube |
| Certificate | TS16949, ISO 9001 |
| HS code | 7304319000 |
| Delivery Time | 45 days |
| Pakcing | Bundles or Woodern Boxes |
Processing Range And Precision:
| Cold Drawn Tubes: ID:45mm-630mm Length:14,000mm Straightness:0.3-1.0 Precision:H8-H10 Roughness:Ra0.8-Ra1.6 | Honing Tubes: ID:25mm-500mm Length:10,000mm Straightness:0.3 Precision:H7-H8 Roughness:Ra0.2-Ra0.8 |
ID Tolerance of Precision Honed Tubes:
| SIZE of I.D | I.D.Tolerance | Tolerance of wall thickness | ||
| H8 | H9 | H10 | ||
| 30 | +0.0330 | +0.0520 | +0.0840 | <120mm(O.D) ±5% ≥120mm(D.D) to 210mm ±7.5% >210mm ±10% |
| >30-50 | +0.0390 | +0.0620 | +0.1000 | |
| >50-80 | +0.0460 | +0.0740 | +0.1200 | |
| >80-120 | +0.0540 | +0.0870 | +0.1400 | |
| >120-180 | +0.0630 | +0.1000 | +0.1600 | |
| >180-250 | +0.0720 | +0.1150 | +0.185 | |
| >250-315 | +0.0810 | +0.1300 | +0.2100 | |
| >315-400 | +0.0890 | +0.1400 | +0.2300 | |
Mechanical Propety:
Material: 20# 45#,16Mn St45, St52, 25Mn,27SiMn, SAE1026.SAE1518 etc.
STANDARD: GB/T8713 GB/T3639 DIN2391 EN10305 ASTM A519
| Delivery condition | cold finished(hard)(BK) | cold drawn and stress relieved(BK+S) | |||
| STEEL GRADE | Rm MPa | Elongation (%) | Rm MPa | ReH MPa | Elongation (%) |
| 20# | ≥550 | ≥ 8 | ≥ 520 | ≥ 375 | ≥ 15 |
| 45# | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 520 | ≥ 10 |
| 16Mn | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 520 | ≥ 14 |
| 25Mn | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 510 | ≥ 15 |
| 27SIMn | ≥ 800 | ≥ 5 | ≥ 760 | ≥ 610 | ≥ 10 |
| ST45 | ≥ 550 | ≥ 5 | ≥ 520 | ≥ 375 | ≥ 15 |
| E355(ST52) | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 520 | ≥ 14 |
| SAE1026 | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 510 | ≥ 15 |
