NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
NEW-ERA STEEL TUBE HOLDING NINGBO PIPEWAY TRADE CO.,LTD
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1. Product Name: DIN2391 Cold Galvanizing Precision Seamless Steel Pipe for Hydraulic System
2. Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m
3. Stable Quality with Comeptitive Price
4. +N(Normalized) Heat Treatment, Surface is clean and smooth, without oxide scale
5. Good Extending and Bending Ability.
6. Cold Galvanizing
Process Introduction: DIN high precision galvanizing steel pipe. Precisely-drawing seamless steel pipes carry out cold galvanizing on external wall of the steel pipes. The tube ends are sealed to prevent from dust.
Quality Control:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing or Cold Rolling, On line inspection
5. Heat Treatment: +N
6. Straightening/Cutting to specified length/Finished Measuring Inspection
7. Quality Testing in own lab with Tensile Strength, Yield Strength, Elongation, Hardness, Straightness, etc.
8. Packing and Stocking.
100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects.
| Product Name | DIN2391 Cold Galvanizing Precision Seamless Steel Pipe |
| Material | St35, St45, St52 |
| Delivery Condition | BK, BKW, BKS, GBK, NBK |
| Surface | Galvanizing |
| Size Range | OD: 6-88mm, WT: 1-15mm |
| Application | Hydraulic System |
| Round Billet | Bao Steel, Xingcheng Steel, Zhongtian Steel |
| Keyword | Galvanizing Steel Pipe |
| Certificate | TS16949, ISO 9001 |
| HS code | 7304319000 |
| Delivery Time | 45 days |
| Pakcing | Bundles or Woodern Boxes |
| Steel Grade | Chemical Composition | |||||
| Symbol | Material Number | C Max. | Si Max. | Mn | P Max. | S Max. |
| ST35 | 1.0308 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| ST45 | 1.0408 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| ST52 | 1.0580 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 |
| Steel Grade | BK | BKW | BKS | |||||
| Name | No. | Rm Mpa | A % | Rm Mpa | A % | Rm Mpa | ReH Mpa | A % |
| ST35 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 315 | 14 |
| ST45 | 1.0408 | 580 | 5 | 520 | 8 | 520 | 375 | 12 |
| ST52 | 1.0580 | 640 | 4 | 580 | 7 | 580 | 450 | 10 |
| Steel Grade | GBK | NBK | ||||
| Name | No. | Rm Mpa | A % | Rm Mpa | ReH Mpa | A % |
| ST35 | 1.0308 | 315 | 25 | 340--470 | 235 | 25 |
| ST45 | 1.0408 | 390 | 21 | 440--570 | 255 | 21 |
| ST52 | 1.0580 | 450 | 22 | 490--630 | 355 | 22 |
