1/2''-12'' steam pipeline /gas pipe hot rolled erw welded steel pipe 26 black ms round pipe

Standard

Steel Grade

C(%)

Si(%)

Mn(%)

S(%)

P(%)

A519

1010

0.05-0.15

0.15-0.35

0.3-0.6

≤0.050

≤0.040

1020

0.15-0.25

0.15-0.35

0.3-0.6

≤0.050

≤0.040

1045

0.43-0.50

0.15-0.35

0.6-0.9

≤0.050

≤0.040

4130

0.28-0.33

0.15-0.35

0.4-0.6

≤0.040

≤0.040

4135

0.32-0.39

0.15-0.35

0.6-0.9

≤0.040

≤0.040

4140

0.38-0.42

0.15-0.35

0.7-1.0

≤0.040

≤0.040

Product Name

Seamless carbon steel pipe

Material

Carbon Steel and Alloy Steel

Surface

oiled, Polished, Brightness, Metallic color

Standard

ASTM A106 A53 A192 A179 A210 A519
DIN17175 1629 2391
EN10216-1 10216-2 10305-1
and GB,JIS

Grade

St35,St45,St52,E215,E235,E355,sch10,sch20,A106,A179,A192,A210,T11,T22,T12,AISI4130,SAE1010,SAE1020.etc

Technique

Cold drawn & cold rolled

Application

1. Automotive and mechanical pipes

2. Petroleum cracking pipes

3. High Pressure Boiler Pipe

4. Low and middle pressure fluid transportation pipeline

5. Chemical fertilizer equipment pipes

6. Heat exchanger pipes

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.

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