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Views: 13 Author: Site Editor Publish Time: 2018-01-09 Origin: Site
Cold Drawn Seamless Steel Tube is used for mechanical structure,hydraulic equipment’s size with high preicision and good surface finishment.
Why manufacturing mechanical structure industry and hydraulic equipment industry need cold rolled seamless steel tube?
Cold drawn seamless steel tube not only save more time but also improve raw material utilization and cold drawn seamless steel tube is beneficial to improve product quality.
How to produce cold drawn seamless steel tube?
Before producing small size of steel pipes, Changzhou Chuangcheng Precision steel tube factory should adopted the combination producing methods of cold rolling and cold drawn.
Usually cold rolling method is conducted on two-high rolling mill, steel pipe is produced in variable cross section round hole groove and motionless conical head of rolling in the annular groove.
Cold drawn usually be produced usually in 0.5-100T single chain or double chain cold drawing machine.
We are specialized in high quality carbon structural steel and main material are 10#,20#,35#,45# etc. And some alloy steel: 30CrMo, 20Cr, 40Cr etc.
Below is referencetable for contrast Chinese and other countries in raw material.
Steel Grade | C | Si | Mn | S | P | Cr | Ni | Cu |
10 | 0.08-0.13 | 0.15-0.35 | 0.30-0.60 | ≤0.030 | ≤0.030 | ≤0.20 | ≤0.25 | ≤0.25 |
1010 | 0.08-0.13 | 0.15-0.35 | 0.30-0.60 | ≤0.050 | ≤0.040 | ≤0.20 | ≤0.25 | ≤0.25 |
STKM11A | ≤0.12 | ≤0.35 | ≤0.60 | ≤0.040 | ≤0.040 | |||
20 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | |
STKM12A | ≤0.20 | ≤0.35 | ≤0.60 | ≤0.20 | ≤0.040 | ≤0.040 | ||
STKM12B | ||||||||
STKM12C | ||||||||
A106Gr.B | ≤0.25 | ≤0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.40 |
30CrMo | 0.26-0.34 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.80-1.10 | ≤0.30 | ≤0.30 |
SCM430 | 0.28-0.33 | 0.15-0.35 | 0.60-0.90 | ≤0.030 | ≤0.030 | 0.90-1.20 | ≤0.25 | ≤0.30 |
4130 | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | ≤0.040 | ≤0.035 | 0.80-1.10 | ≤0.030 | ≤0.030 |
How to caculate seamless steel tube weight ?
KG/M=(OD-WT)*WT*0.02466
What’s the difference between hot rolling seamless steel tube and cold drawning?
Hot rolling seamless steel tube normally be produce in automatic pipe milling production machine.
Solid billet be cleaned in surface with inspection, be cutted into suitable length,centering on the tube billet perforation end face,then be sent to heating furnace and punched on the punch.The these raw pipes be put to hot rolling machine,producing client required seamless steel tube size.
What are characteristics of cold drawing seamless steel tube?
1. Smaller outside diameter size.
2. High precision.
3. Good surface with perfect mechanical properties.
4. Seamless steel pipe is superior performace ,high density of metal components.
Below are pictures of cold drawn seamless steel tube from chuangcheng preicision seamless steel tube Co.,Ltd
If you need more specification, please feel free to contact us in any time.
Contact: Chatty Chan
Mobile:+8615061965293( Whatsapp)
Email: raysales5@raysteeltube.com
Welcome to send us inquiry !