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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.