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Categories | Hollow Steel Tube |
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Brand Name: | Hongbao |
Model Number: | HBHST-1 |
Certification: | TS16949,DNV,PED,ISO,TUV,LR |
Place of Origin: | Jiangsu, China |
MOQ: | 1 ton |
Price: | Negotiable |
Supply Ability: | 30000MT per year |
Delivery Time: | within 50 days |
Packaging Details: | Original packaging according to the customers Export standard package in bundled or as required. |
Brand:: | Hongbao |
Certificate:: | TS16949,DNV,PED,ISO,TUV,LR |
Material:: | ST37.4,ST52.4,E235,E355,26MnB5,34MnB5 |
OD:: | 6-120mm |
Thickness:: | 0.5-15mm |
Length:: | 12000mm Max |
Shape:: | Round |
Type:: | Welded or Seamless |
Company Info. |
Jiangsu Hongbao Group Co., Ltd. |
Verified Supplier |
View Contact Details |
Product List |
EN10305 E235 E355 Cold Finishing Hollow Steel Round Tube For Car Hydraulic System
Description:
Delivery conditions | 1. NBK(+N) after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium 2. GBK(+A) after cold forming, annealing in non oxidizing medium protective gas 3. BK(+C) the final heat treatment after cold forming, therefore small steel pipe plastic, the plastic degree does not guarantee 4. BKW(+LC) after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring) |
Production Process:
Cold rolling by Cold pilger machine and Cold rolling machine
Size: 6-350mm
WT: 1.0-35mm
1. Standard:
EN10305-2 Cold Drawn Precision Seamless Steel Pipes
2. Steel Grade:
E155,E195,E235,E275,E355, other materials upon agreement with
customers.
3. Production method:
Cold drawn on the welded steel tubes, to reach high accuracy on the
OD and WT tolerance
4. Packing:
In Hexagonal Bundles, with anti-rust oil protection, with seaworthy
packing
5. Deliver condition:
1) +C No heat treatment after the final cold drawing process
2) +LC After the final heat treatment there is a suitable drawing
pass
3) +SR After the final cold drawing process there is a stress
relieve heat treatment in a controlled atmosphere
4) +A After the final cold drawing process the tubes are annealed
in a controlled atmosphere
5) +N After the final cold drawing operation the tubes are
normalized in a controlled atmosphere
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