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GB Q195 Q235 Q345 Spiral Welded Steel Pipe For Oil and Gas Manufacturing
| Product Specification |
Wall Thickness |
0.4 - 20 mm |
Thickness Tolerance |
±0.05 |
Length |
1---12M , according to customers' requirements |
Outer Diameter |
19 - 300 mm |
O.D tolerance |
±0.03 |
Material |
Q195/Q215/Q235/Q345 Q235B, A53(A,B), Gr.B, X42, X46, X52, X56, X60, X65, X70, X80,etc |
Standard |
API 5L, EN-10208-1/2, GB9711.1/2, ISO, BS1387, ASTM A53, GB 3091 |
Technique |
ERW |
Surface |
Bare, Varnished, Zinc coating, Anti-corrosion, 3PE, PE/PP/EP/FBE. etc. |
Application |
For oil pipe, line pipe in petroleum and natural gas, structure pipe, water and gas, also for chemical industry |
Packaging Details |
Standard export packing or according to the clients required |
| Chemical Composition |
Item |
Chemical Composition % |
Mechanical Property |
||||||
Steel |
C |
Mn |
S |
P |
Si |
yield point Mpa |
tensile strength Mpa |
elongation % |
BS1387 |
<0.2 |
< 1.2 |
<0.045 |
<0.045 |
<0.30 |
>195 |
325-460 |
20 (min) |
A53 A |
0.25 |
0.95 |
0.045 |
0.05 |
-- |
>205 |
> 330 |
26--30 |
A53 B |
0.3 |
1.2 |
0.045 |
0.05 |
-- |
>240 |
> 415 |
21--26 |
A500AD |
<0.26 |
<1.35 |
<0.035 |
<0.035 |
0<0.30 |
230--250 |
310-400 |
22--26 |
A500 B C |
< 0.26 |
< 1.35 |
<0.035 |
<0.035 |
0<030 |
315--345 |
400--425 |
21--22 |
S235 |
<0.20 |
< 1.4 |
<0.040 |
<0.040 |
<0.3 |
>235 |
> 425 |
21--22 |
S355 |
< 0.22 |
< 1.6 |
<0.030 |
<0.030 |
< .55 |
>355 |
470-630 |
21-22 |
C250 |
< 0.3 |
< 1.2 |
<0.045 |
<0.040 |
<0.3 |
250 |
320 |
25 |
C350 |
< 0.22 |
< 1.6 |
<0.035 |
<0.035 |
<0.55 |
350 |
430 |
22 |
Product Applications | |||
|
1. Widely used in fencing, scaffolding, engineering 2. Greenhouse, low medium pressure fluid, coal gas or oil 3. Sewage conveying, heating steam, project pressure, bridge 4. Fire fighting, gas pipes, water transport and water supply projects Feature: 1. Economy Benefit: ERW steel pipe is less expensive than seamless steel pipe. 2. High Precision: ERW steel pipe has a closer tolerance of wall thickness when compared with seamless steel pipe.
|
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