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Oil / Gas Industry Cold Drawn Steel Tube High Precision With Galvanized Surface

Place of Origin Jiangsu, China
Brand Name Hongbao
Certification TS16949,DNV,PED,ISO,TUV,LR
Model Number HBCDSST-1
Minimum Order Quantity 1 ton
Price Negotiable
Packaging Details seaworthy plywooden case packing.
Delivery Time within 50 days
Supply Ability 30000MT per year
Product Details
Material 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 rolled steel tube

,

cold drawn seamless pipe

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Product Description

EN10305-1 E235 E355 Seamless Steel Tube Annealing Cold Drawn Precision Products

 

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.