Type: EFW steel pipe, LSAW steel pipe, welded steel pipe
Specification: OD:21.3-1016mm. WT: SCH10, 20, 30, STD 40, 60, XS, 80,100,120,140,160, XXS. L.: SRL, DRL, or customized.
Standards: ASTM A671 /ASME SA671,ASTM A672 /ASME SA672
Grade: Nickel steel: CF 65, CF 70, CF 65, CF 70. Alloy steel: CJA 115, CJB 115,CJE 115,CJF 115,CJH 115,CJP 115. Carbon steel: CA55, CB60, CB 65, CB70 CC 60, CC 65, CC 70.
Class:10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 40, 41, 42
Coating: Epoxy Coating / Colour Paint Coating / 3LPE Coating.
A671 steel pipe specification covers electric-fusion-welded steel pipe with filler metal added, fabricated from pressure vessel quality plate of several analyses and strength levels, and suitable for high-pressure service at atmospheric and lower temperatures. Heat treatment may or may not be required to attain the desired properties or to comply with applicable code requirements. The A671 steel pipe material includes 0.24% of Carbon, 0.13% to 0.45% Silicon, and 0.79% to 1.30% of Manganese. This carbon-based stainless-steel alloy also contains trace amounts of other minerals. For example, 0.035% of phosphorus and Sulphur can be found in the alloy.
ASTM A672 steel pipe is the Standard Specification for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures. ASTM A672 LSAW steel pipeline takes a hot rolling process which can be standardized, quenched, disinfected, and suitable for thermostat and other heat treatment methods, use of LSAW steel pipeline is mainly for land, offshore oil, natural gas, liquid coal, and other long-distance transmission pipeline. ASTM A672 piping material’s chemical composition includes 0.25 carbon max, 0.98 Manganese, 0.64 molybdenum, and 0.45 Silicon. It allows certain mechanical properties such as Yield Strength (Mpa) of 37 and Tensile Strength (Mpa) of 65.
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Products |
Steel Grade |
BASE METAL MECHANICAL COMPOSITION |
Welding point tensile strength (N/mm2) |
Remarks |
|||
|
Yield point (N/mm2) |
Tensile Stregth (N/mm2) |
Test Pieces |
Elongation (%) |
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Pipes for pressure service ASTM A671, A672 |
-/A45 |
-/165 |
-/310~450 |
- |
-/30 |
-/310~450 |
A671/ A672 |
|
-/A50 |
-/185 |
-/345~485 |
-/28 |
-/345~485 |
|||
|
CA55/A55 |
205 |
380~515 |
27 |
380~515 |
|||
|
-/B55 |
-/205 |
-/380~515 |
-/27 |
-/380~515 |
|||
|
CB60/B60 |
220 |
415~550 |
25 |
415~550 |
|||
|
CB65/B65 |
240 |
450~585 |
23 |
450~585 |
|||
|
CB70/B70 |
260 |
485~620 |
21 |
485~620 |
|||
|
-/C55 |
-/205 |
-/380~515 |
-/27 |
-/380~515 |
|||
|
CC60/C60 |
220 |
415~550 |
25 |
415~550 |
|||
|
CC65/C65 |
240 |
450~585 |
23 |
450~585 |
|||
|
CC70/C70 |
260 |
485~620 |
21 |
485~620 |
|||
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Specification |
Steel grade |
Chemical composition |
Remarks |
|||||
|
C |
Si |
Mn |
P |
S |
Ti |
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|
Pipes for pressure service |
-/A45 |
-/0.17 |
- |
0.98 |
0.035 |
0.035 |
- |
A671/ |
|
-/A50 |
-/0.22 |
- |
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CA55/A55 |
0.28 |
- |
||||||
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-/B55 |
-/0.20 |
0.13 |
||||||
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CB60/B60 |
0.24 |
|||||||
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CB65/B65 |
0.28 |
|||||||
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CB70/C70 |
0.31 |
1.30 |
||||||
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-/C55 |
-/0.18 |
0.55 |
||||||
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CC60/C60 |
0.21 |
|||||||
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CC65/C65 |
0.24 |
0.79 |
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CC70/C70 |
0.27 |
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