Outer diameter:Â 25mm -500mmÂ
Wall thickness: 2-50mm
Material: ST52, Q345B, CK20, CK45, SAE1026
Standard: GB/T8713-88, GB/T3639-2009, DIN2391, EN10305
Cold Drawn Tube can be produced according to the demands of costumers that the degree of precision can reach H9/H11.
Material & Chemical Composition
 DIN2391 standard ST52, EN10305 standard E355, 16Mn, ASTM A106B, C20/20#, CK45
Â
| 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 | |
Product description
| Processing Form | I. D | Length | Straightness | I. D Tolerance | I. D Rounghness |
| Cold-rolled | 30-100 | ≤ 12M | 0.3-1.0 | H8-H10 | 0.4-1.6 |
| Cold-drawn | 30-250 | ≤ 12M | 0.3-1.0 |  | 0.8-1.6 |
| Hone | 40-500 | ≤ 12M | 1000 | H8-H9 | 0.4-0.8 |
| SRB | 40-400 | ≤ 7M | 1000 | H8-H9 | 0.1-0.4 |
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Magnetic multi-functional Mini Screwdriver set, suitable for precision maintenance tools such as mobile computer
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Specifications is much, easy to carry, and magnetic more stable
Free Samples
We will offer you free sample within 5 working days after your comfirmation of details and invoice.
Quality Guarantee
We will check the products strictly one by one before arranging the shippment.
Price Discount
We will give discount to the long term business partners or the big order.
Customized Service
We can offer the OEM service based on clients' requirements such as the color,label or the package,etc.
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SHANGQIU OSIN TOOLS CO.,LTD , https://www.oxiontools.com