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DIN2391 Cold Drawn Seamless Steel Tube
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Product Details
Place of Origin | Shandong, China | Certification | API | |
Thickness | 3, 40 | Application | Hydraulic Pipe | |
Technique | Cold Drawn | |||
Alloy Or Not | Non-alloy | |||
Secondary Or Not | Non-secondary | Special Pipe | Thick Wall Pipe | |
Section Shape | Round |
Product Description
DIN 2391 Cold Drawn Seamless Steel Tube
Technical information % machanical behavior
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 |
45# | ≥640 | ≥5 | ≥600 | ≥520 | ≥10 |
16Mn | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
27SiMn | ≥840 | ≥5 | ≥800 | ≥720 | ≥10 |
ST45 | ≥550 | ≥5 | ≥520 | ≥375 | ≥15 |
ST52 | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
SAE1026 | ≥640 | ≥5 | ≥600 | ≥510 | ≥12 |
Tolerance of ID &WT
Tolerance | I.D Tolerance | Tolerance of wall thickness | ||
Size of I.D | H8 | H9 | H10 | |
30 | +0.033 | +0.052 | +0.084 | <120mm(O.D) ±5% ≥120mm up to 210mm ±7.5% >210mm ±10% |
>30-50 | +0.039 | +0.062 | +0.100 | |
>50-80 | +0.046 | +0.074 | +0.120 | |
>80-120 | +0.054 | +0.087 | +0.140 | |
>120-180 | +0.063 | +0.100 | +0.160 | |
>180-250 | +0.072 | +0.115 | +0.185 | |
>250-315 | +0.081 | +0.130 | +0.210 | |
>315-400 | +0.089 | +0.140 | +0.230 |
Sizes Ranges:
Processing form | I.D mm | Length | Straightness | I.D tolerance | I.D Roughness (RA) |
Cold rolled | 30-100 | ≤12M | 0.3-1.0/1000 | H8-H10 | 0.4-1.6μm |
Cold drawn | 30-250 | ≤12M | H8-H10 | 0.8-1.6μm | |
Hone | 40-500 | ≤12M | H8-H9 | 0.4-0.8μm | |
SRB | 50-250 | ≤9M | H8 | 0.1-0.4μm |
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