Main Products: Carbon Steel Tube
DIN2391 Galvanized Steel Pipe
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Zhangjiagang Sheng Ding Yuan Pipe-Making Co.,Ltd
Business Type: Trading CompanyMain Products: Carbon Steel Tube
Seamless Galvanized Steel Pipe , EN10305-4 ST37 ST52 Small Diameter Metal Tube
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White Precision Cold Drawn Galvanized Steel Pipe DIN2391 EN10305/4 DIN1630
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Galvanized Precision Carbon Steel Tubing , Cold Drawn Seamless Pipe DIN1630 ST52.4
Product Details
DIN2391 ST37.4 ST35 Galvanized Steel Pipe , Carbon Seamless Bao Steel Pipe
Quick Detail:
DIN2391 zinc coated steel tube ST37.4 NBK OD22XTH2
Good antirust effect,zinc distributed on the surface
No deformation after cold bending,no crack after flaring and flattening.
Description:
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.
Specifications:
Size:OD4mm-60mm,TH0.5mm-7mm
Standard:DIN2391
Material: ST35,ST37.4,ST37,ST45,ST52,ST52.4
Delivery State:NBK/GBK +white /Yellow/Army green Galvanized
| Galvanized tube category and related standard | |||
| Galvanized tube category | Related Standard | Zinc coating thickness | Salt spray test |
| Gr3+ Galvanized tube with blue and white zinc |
ASTM B633-07 (Type III,SC 1/2/3/4) |
5-25um | 24--72 hours without white rust;48--168 hours without red rust |
| Gr3+ Galvanized tube with color zinc |
ASTM B633-07 (Type II,SC 1/2/3/4) |
5-25um | 48--96 hours without white rust;48--240 hours without red rust |
| Gr6+ Galvanized tube with color zinc |
ASTM B633-98 (Type II,SC 1/2/3/4) |
5-25um | 24--96 hours without white rust;48--124 hours without red rust |
|
Chemical composition(cast analysis)a |
||||||
|
Steel grade |
% by mass |
|||||
|
Steel name |
Steel number |
C |
Si |
Mn |
P |
S |
|
max. |
max. |
max. |
max. |
|||
|
ST35 |
1.0305 |
0.17 |
0.35 |
≥0.40 |
0.025 |
0.025 |
|
ST45 |
1.0408 |
0.21 |
0.35 |
≥0.40 |
0.025 |
0.025 |
|
ST52 |
1.0580 |
0.22 |
0.55 |
≤1.60 |
0.025 |
0.025 |
|
Mechanical properties at room temperature |
|||||||
|
Steel grade |
Minimum values for the delivery condition |
||||||
|
Steel name |
Steel number |
BK |
BKW |
BKS |
GBK |
NBK |
|
|
Rm |
A |
Rm |
A |
Rm |
ReH |
A |
Rm |
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