Zhangjiagang Renaissance High-precision Steel Tube Co., Ltd
Zhangjiagang Renaissance High-precision Steel Tube Co., Ltd
Din1630 St37.4 Nbk Precision Cold Drawn Pipe 
  • Din1630 St37.4 Nbk Precision Cold Drawn Pipe 
  • Din1630 St37.4 Nbk Precision Cold Drawn Pipe 
Din1630 St37.4 Nbk Precision Cold Drawn Pipe 
Din1630 St37.4 Nbk Precision Cold Drawn Pipe 

Din1630 St37.4 Nbk Precision Cold Drawn Pipe 

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Basic Info
Basic Info
Product Description
Product Description
DIN1630 St37.4 NBK Precision Cold Drawn Pipe

Standard: DIN2391, EN10305-1, EN10305-4
Steel grade: St35, St37, St45, St52, E235, E355
Size(mm): O. D.: 3.0-114.0mm W. T.: 0.5-10mm L: Max 14000mm
Condition: GBK(+A) NBK(+N), BK(+C)
Delivery condition: Hot rolled, Cold worked, Annealed, Normalized, Stress Released
EN10204/3.1 test certificate be presented
Application: For Auto use, machinery use, Oil cylinder tube, Motorcycle shock reducer steel tubes, Auto shock reducer inner cylinder.
Delivery condition: Cold worked, Annealed, Normalized, Stress Released.
Packing:
1. Standard export bundle wrapped with strong steel strip
2. Wooden case
3. Nylon packed

Your special requirement is highly welcomed and will be fulfilled.
We always provide higher quality seamless pipe/tube and best service.
Delivery condition: Cold worked, Annealed, Normalized, Stress Released
+C
Cold drawn / hard.
After the last cold forming no heat treatment.
+LC
Cold drawn / soft. After the last heat treatment follows the cold drawing there is a light finishing pass.
+SR
Cold drawn and stress relieved annealed. After the final cold drawing process the tubes are stress relieved
annealed in a controlled atmosphere.
+A
Annealed. After the last cold drawing process the tubes are annealed in a controlled atmosphere.
+N
Normalized.
After the last cold drawing process the tubes are annealed in a controlled atmosphere.
Grade
Chemical Composition ( % )
C max
Si max
Mn
P max
S max
St 35
0.17
0.35
≥ 0.40
0.025
0.025
St 45
0.21
0.35
≥ 0.40
0.025
0.025
St 52
0.22
0.55
≤ 1.60
0.025
0.025
Steel grade
Chemical Composition ( % )
Steel name
Steel number
C max
Si max
Mn
P max
S max
Al min
E215
1.0212
0.10
0.05
0.70
0.025
0.025
0.025
E235
1.0308
0.17
0.35
1.20
0.025
0.025
-
E355
1.0580
0.22
0.55
1.60
0.025
0.025
-

DIN1630 St37.4 NBK Precision Cold Drawn Pipe

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