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Normalized Cold Finished Seamless Tube For Heavy Machinery Hydraulic Cylinder

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xMaterial | Low Carbon Steel,Carbon Steel,Carbon Alloy Steel,E355,E235,ST37.2 | Certificate | TS16949,DNV,PED,ISO |
---|---|---|---|
Origin | Jiangsu,China | OD | 4-383mm |
Thickness | 0.5-18mm | Processing | Seamless |
High Light | cold drawn steel pipe,cold drawn seamless pipe |
EN10305-1 E235 E355 Cold Drawn Seamless Steel Tube Normalized Cold Drawn Precision Steel Tube
Description
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. |
DELIVERY CONDITIONS
The tubes can be produced in the following delivery conditions:
BK (+C) Cold finished/hard (cold finished as drawn).
No heat treatment after the last cold forming process.
BKW (+LC) Cold finished/soft (lightly cold worked)
After the last heat treatment there is a light finishing pass (cold drawing).
BKS (+SR) Cold finished/stress relieve annealed.
After the final cold forming process the tubes are stress relieve annealed.
GBK (+A) Annealed.
After the final cold forming process the tubes are annealed in a controlled atmosphere.
NBK (+N) Normalized. (Mainly focus on)
After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere.