GB/T3639 20# astm 1020 din ck22 Small Diameter Seamless Steel Pipe Precision
Product Description
Chemical Composition(%) | Mechanical Properties | ||||||||||
| C | Si | Mn | S | P | Cr | Ni | Cu | Mo | Yield Strength ( σs ) | Tensile Strength ( σb ) | Elongation
|
| 0.17~0.24 | 0.17~0.37 | 0.35~0.65 | ≤0.04 | ≤0.35 | ≤0.15 | ≤0.25 | ≤0.25 | / | ≥205(25) (MPa) | ≥410(42) (MPa) | 20% |
other standard | JIS S20C,DIN/EN CK22(1.0402),AISI 1020 | ||||||||||
End Shape | Beveled end, plain end, vanished as per customer's requirements | ||||||||||
| Surface Treatment | Oiled,Passication,Phosphate | ||||||||||
Technique | Cold drawn | ||||||||||
Application | 1. Automotive and mechanical pipes | ||||||||||
2. High Pressure Boiler Pipe | |||||||||||
3. Low and middle pressure fluid transportation pipeline | |||||||||||
4. Heat exchanger pipes | |||||||||||
| Delivery Conditions | 1. BK (+C) | No heat treatment after last cold forming process. | |||||||||
2. BKW (+LC) | After last heat treatment there is a light finishing pass (cold drawing) | ||||||||||
3. BKS (+SR) | After the final cold forming process the tubes are stress relieve annealed. | ||||||||||
4. GBK (+A) | After the final cold forming process the tubes are annealed in a controlled atmosphere. | ||||||||||
5. NBK (+N) | After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere. | ||||||||||
Package | 1. Bundle Packing. | ||||||||||
2. Plain end or vanished as per customer's request. | |||||||||||
3. Wrapped in plastic film bag. | |||||||||||
4. steel strips bundle | |||||||||||
5. Pack in wooden crate | |||||||||||
Contact us if you need more details on Gb/t3639 20 Small Diameter Seamless Steel Pipe. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Seamless Steel Pipe、Seamless Steel Tube. If these products fail to match your need, please contact us and we would like to provide relevant information. Product Categories : Carbon Seamless Steel Pipe > Other Carbon Seamless Steel Pipe
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