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Round Galvanized Steel Pipe DIN1630 , Seamless Steel Tube For Automotive

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Address: Building B,Gaoqiao Industries Park,Chengdong Road,Jingang Town,Zhangjiagang city.

Contact name:Kelly

Zhangjiagang Sheng Ding Yuan Pipe-Making Co.,Ltd.

Round Galvanized Steel Pipe DIN1630 , Seamless Steel Tube For Automotive

Country/Region china
Categories Heat Insulation Materials

Product Details

Round Galvanized Steel Pipe DIN1630 , Seamless Steel Tube For Automotive

 

Specifications:

Size:OD4mm-60mm,TH0.5mm-7mm

Standard:DIN1630

Material: ST37.4,ST44.4,ST52.4

Delivery State:NBK/GBK+Zinc coated tube.

 

Quick Detail:

DIN1630 zinc coated steel tubing ST37.4 

Raw material:Bao Steel,Huai Steel,XingCheng Steel with good quality.

 

Synopsis of Process Routing: DIN highly accurate cold drawn bright seamless steel tube is used as the tube to be galvanized, the outer wall is electroplated, caps are covered at two ends of tube to prevent from the dust.

 

Main Features: Different color of zinc such as white, yellow, army-green, black is evenly distributed in the surface of the tube, good brightness and antirust and antisepsis could improve after zinc coated.

 

Applications:

Automotive,military,railway industry,with high requirement of the tube’s  brightness, cleanness,antirust,and antisepsis.

 

Galvanized tube category and related standard
Galvanized tube categoryRelated StandardZinc coating thicknessSalt spray test 
Gr3+ Galvanized tube with blue and white zincASTM B633-07
(Type III,SC 1/2/3/4)
5-25um24--72 hours without white rust;48--168 hours without red rust
Gr3+ Galvanized tube with color zincASTM B633-07
(Type II,SC 1/2/3/4)
5-25um48--96 hours without white rust;48--240 hours without red rust
Gr6+ Galvanized tube with color zincASTM B633-98
(Type II,SC 1/2/3/4)
5-25um24--96 hours without white rust;48--124 hours without red rust

 

Chemical composition for Round Galvanized Steel Pipe DIN1630 

Chemical composition(cast analysis)a

Steel grade

% by mass

Steel name

Steel number

C

Si

Mn

P

S

max.

max.

 

max.

max.

       ST37.4

1.0255

0.17

0.35

≥0.35

0.025

0.025

 ST44.4

1.0257

0.21

0.35

≥0.40

0.025

0.025

 ST52.4

1.0581

0.22

0.35

≤1.60

0.025

      0.025 

 

Mechanical properties for Round Galvanized Steel Pipe DIN1630 

Mechanical properties at room temperature

Steel grade

Minimum values for the delivery condition

Steel name

Steel number

 

Rm(Mpa)

     Re(Mpa)

A(%)

  ST37.4

1.0255

235

350-480

25

ST44.4

1.0257

275

420-550

21

ST52.4

1.0581

355

500-650

21

 

 

 

 

 

 

 

 

 

 

 

 

Competitive Advantage:

Internal surface with high cleaness and roughness.

We passed TS16949 certificate since 2009.

Main Customer:Contitech,Benteler.

We have to cooperate with Volkswagen.

We also have been reviewed by BMW.

Our company has one of the most stringent quality control systems, from our feed testing,product inspection to the final inspection process.Strict quality process control and management ensure product quality and traceability.

 

 

Production Line:


 

Production Equipment:


 

 Packing and loading:

 


 Laboratory Testing:

 


Our Customer:

 

Certificate Approved:


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