Grades and Specifications for API 5L line Pipe
The range of API 5L levels
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PSL2 C |
CEPCM= |
C |
Si/30 |
Mn/20 |
Cu/20 |
Ni/60 |
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0 |
0 |
0 |
0 |
0 |
0 |
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PSL2 C>0.12% |
CEnw= |
C |
Mn/6 |
(Cr+Mo+V)/5 |
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0 |
0 |
0 |
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0 |
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PSL1 SMLS Chemical Content( Max/%) Pipe Thickness Equal or Under |
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C |
Mn |
P |
S |
V |
Nb |
Ti |
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A |
0.22 |
0.9 |
0.03 |
0.03 |
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B |
0.28 |
1.2 |
0.03 |
0.03 |
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X42 |
0.28 |
1.3 |
0.03 |
0.03 |
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X46 |
0.28 |
1.4 |
0.03 |
0.03 |
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X52 |
0.28 |
1.4 |
0.03 |
0.03 |
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X56 |
0.28 |
1.4 |
0.03 |
0.03 |
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X60 |
0.28 |
1.4 |
0.03 |
0.03 |
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X65 |
0.28 |
1.4 |
0.03 |
0.03 |
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X70 |
0.28 |
1.4 |
0.03 |
0.03 |
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PSL1 Welded Chemical Content( Max/%) Pipe Thickness Equal or Under |
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C |
Mn |
P |
S |
V |
Nb |
Ti |
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A |
0.22 |
0.9 |
0.03 |
0.03 |
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B |
0.26 |
1.2 |
0.03 |
0.03 |
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X42 |
0.26 |
1.3 |
0.03 |
0.03 |
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X46 |
0.26 |
1.4 |
0.03 |
0.03 |
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X52 |
0.26 |
1.4 |
0.03 |
0.03 |
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X56 |
0.26 |
1.4 |
0.03 |
0.03 |
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X60 |
0.26 |
1.4 |
0.03 |
0.03 |
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X65 |
0.26 |
1.45 |
0.03 |
0.03 |
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X70 |
0.26 |
1.65 |
0.03 |
0.03 |
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PSL2 SMLS and Welded Chemical Content( Max/%)Pipe Thickness Equal or Under Service
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C |
Si |
Mn |
P |
S |
V |
Nb |
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BR |
0.24 |
0.4 |
1.2 |
0.025 |
0.015 |
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X42R |
0.24 |
0.4 |
1.2 |
0.025 |
0.015 |
0.06 |
0.05 |
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BN |
0.24 |
0.4 |
1.2 |
0.025 |
0.015 |
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X42N |
0.24 |
0.4 |
1.2 |
0.025 |
0.015 |
0.06 |
0.05 |
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X46N |
0.24 |
0.4 |
1.4 |
0.025 |
0.015 |
0.07 |
0.05 |
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X52N |
0.24 |
0.45 |
1.4 |
0.025 |
0.015 |
0.1 |
0.05 |
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X56N |
0.24 |
0.45 |
1.4 |
0.025 |
0.015 |
0.1 |
0.05 |
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X60N |
0.24 |
0.45 |
1.4 |
0.025 |
0.015 |
0.1 |
0.05 |
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BQ |
0.18 |
0.45 |
1.4 |
0.025 |
0.015 |
0.05 |
0.05 |
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X42Q |
0.18 |
0.45 |
1.4 |
0.025 |
0.015 |
0.05 |
0.05 |
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X46Q |
0.18 |
0.45 |
1.4 |
0.025 |
0.015 |
0.05 |
0.05 |
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X52Q |
0.18 |
0.45 |
1.5 |
0.025 |
0.015 |
0.05 |
0.05 |
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X56Q |
0.18 |
0.45 |
1.5 |
0.025 |
0.015 |
0.07 |
0.05 |
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X60Q |
0.18 |
0.45 |
1.7 |
0.025 |
0.015 |
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X65Q |
0.18 |
0.45 |
1.7 |
0.025 |
0.015 |
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X70Q |
0.18 |
0.45 |
1.8 |
0.025 |
0.015 |
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X80Q |
0.18 |
0.45 |
1.9 |
0.025 |
0.015 |
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PSL2 Welded Chemical Content(Max/%) Pipe Thickness Equal or Under Service
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C |
Si |
Mn |
P |
S |
V |
Nb |
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BM |
0.22 |
0.45 |
1.2 |
0.025 |
0.015 |
0.05 |
0.05 |
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X42M |
0.22 |
0.45 |
1.3 |
0.025 |
0.015 |
0.05 |
0.05 |
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X46M |
0.22 |
0.45 |
1.3 |
0.025 |
0.015 |
0.05 |
0.05 |
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X52M |
0.22 |
0.45 |
1.4 |
0.025 |
0.015 |
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X56M |
0.22 |
0.45 |
1.4 |
0.025 |
0.015 |
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X60M |
0.12 |
0.45 |
1.6 |
0.025 |
0.015 |
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X65M |
0.12 |
0.45 |
1.6 |
0.025 |
0.015 |
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X70M |
0.12 |
0.45 |
1.7 |
0.025 |
0.015 |
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X80M |
0.12 |
0.45 |
1.85 |
0.025 |
0.015 |
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X90M |
0.1 |
0.55 |
2.1 |
0.02 |
0.01 |
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X100M |
0.1 |
0.55 |
2.1 |
0.02 |
0.01 |
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X120M |
0.1 |
0.55 |
2.1 |
0.02 |
0.01 |
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PSL2 SMLS/Welded Chemical Content(Max/%)Pipe Thickness Equal or Under Service |
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C |
Si |
Mn |
P |
S |
V |
Nb |
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BNS |
0.14 |
0.4 |
1.35 |
0.02 |
0.003 |
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X42NS |
0.14 |
0.4 |
1.35 |
0.02 |
0.003 |
0.05 |
0.05 |
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X46NS |
0.14 |
0.4 |
1.4 |
0.02 |
0.003 |
0.07 |
0.05 |
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X52NS |
0.16 |
0.45 |
1.65 |
0.02 |
0.003 |
0.1 |
0.05 |
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BQS |
0.14 |
0.4 |
1.35 |
0.02 |
0.003 |
0.04 |
0.04 |
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X42QS |
0.14 |
0.4 |
1.35 |
0.02 |
0.003 |
0.04 |
0.04 |
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X46QS |
0.15 |
0.45 |
1.4 |
0.02 |
0.003 |
0.05 |
0.05 |
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X52QS |
0.16 |
0.45 |
1.65 |
0.02 |
0.003 |
0.07 |
0.05 |
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X56QS |
0.16 |
0.45 |
1.65 |
0.02 |
0.003 |
0.07 |
0.05 |
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X60QS |
0.16 |
0.45 |
1.65 |
0.02 |
0.003 |
0.08 |
0.05 |
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X65QS |
0.16 |
0.45 |
1.65 |
0.02 |
0.003 |
0.09 |
0.05 |
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X70QS |
0.16 |
0.45 |
1.65 |
0.02 |
0.003 |
0.09 |
0.05 |
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PSL2 Welded Chemical Content(Max/%) Pipe Thickness Equal or Under 25.0mm |
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C |
Si |
Mn |
P |
S |
V |
Nb |
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BMS |
0.1 |
0.4 |
1.25 |
0.02 |
0.002 |
0.04 |
0.04 |
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X42MS |
0.1 |
0.4 |
1.25 |
0.02 |
0.002 |
0.04 |
0.04 |
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X46MS |
0.1 |
0.45 |
1.35 |
0.02 |
0.002 |
0.05 |
0.05 |
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X52MS |
0.1 |
0.45 |
1.45 |
0.02 |
0.002 |
0.05 |
0.06 |
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X56MS |
0.1 |
0.45 |
1.45 |
0.02 |
0.002 |
0.06 |
0.08 |
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X60MS |
0.1 |
0.45 |
1.45 |
0.02 |
0.002 |
0.08 |
0.08 |
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X65MS |
0.1 |
0.45 |
1.6 |
0.02 |
0.002 |
0.1 |
0.08 |
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X70MS |
0.1 |
0.45 |
1.6 |
0.02 |
0.002 |
0.1 |
0.08 |
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CFor every reduction of 0.01%, manganese can be increased by 0.05%, but the maximum increase is 0.2% |
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PSL2 SMLS/Welded Chemical Content(Max/%)Pipe Thickness Equal or Under 25.0mm |
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C |
Si |
Mn |
P |
S |
V |
Nb |
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BN0 |
0.14 |
0.4 |
1.35 |
0.02 |
0.01 |
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X42N0 |
0.14 |
0.4 |
1.35 |
0.02 |
0.01 |
0.05 |
0.05 |
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X46N0 |
0.14 |
0.4 |
1.4 |
0.02 |
0.01 |
0.07 |
0.05 |
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X52N0 |
0.16 |
0.45 |
1.65 |
0.02 |
0.01 |
0.1 |
0.05 |
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BQ0 |
0.14 |
0.4 |
1.35 |
0.02 |
0.01 |
0.04 |
0.04 |
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X42Q0 |
0.14 |
0.4 |
1.35 |
0.02 |
0.01 |
0.04 |
0.04 |
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X46Q0 |
0.15 |
0.45 |
1.4 |
0.02 |
0.01 |
0.05 |
0.05 |
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X52Q0 |
0.16 |
0.45 |
1.65 |
0.02 |
0.01 |
0.07 |
0.05 |
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X56Q0 |
0.16 |
0.45 |
1.65 |
0.02 |
0.01 |
0.07 |
0.05 |
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X60Q0 |
0.16 |
0.45 |
1.65 |
0.02 |
0.01 |
0.08 |
0.05 |
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X65Q0 |
0.16 |
0.45 |
1.65 |
0.02 |
0.01 |
0.09 |
0.05 |
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X70Q0 |
0.17 |
0.45 |
1.75 |
0.02 |
0.01 |
0.1 |
0.05 |
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PSL2 SMLS/Welded Chemical Content(Max/%)Pipe Thickness Equal or Under 25.0mm |
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C |
Si |
Mn |
P |
S |
V |
Nb |
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BM0 |
0.12 |
0.4 |
1.25 |
0.02 |
0.01 |
0.04 |
0.04 |
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X42M0 |
0.12 |
0.4 |
1.35 |
0.02 |
0.01 |
0.04 |
0.04 |
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X46M0 |
0.12 |
0.45 |
1.35 |
0.02 |
0.01 |
0.05 |
0.05 |
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X52M0 |
0.12 |
0.45 |
1.65 |
0.02 |
0.01 |
0.05 |
0.05 |
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X56M0 |
0.12 |
0.45 |
1.65 |
0.02 |
0.01 |
0.06 |
0.08 |
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X60M0 |
0.12 |
0.45 |
1.65 |
0.02 |
0.01 |
0.08 |
0.08 |
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X65M0 |
0.12 |
0.45 |
1.65 |
0.02 |
0.01 |
0.1 |
0.08 |
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X70M0 |
0.12 |
0.45 |
1.75 |
0.02 |
0.01 |
0.1 |
0.08 |
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X80M0 |
0.12 |
0.45 |
1.85 |
0.02 |
0.01 |
0.1 |
0.08 |
total≤0.06%, N≤0.012%, Al/N≥2:1 (not applicable to Ti-killed or Ti-treated steel), Cu≤0.35%, (if acceptable, Cu≤0.1%), Ni≤0.3% , the maximum concentration limit for S in seamless pipes can be ≤0.008%, and for welded pipes can be ≤0.006%
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Tensile Properties PSL1 |
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Pipe in SMLS and Welded |
Weld S |
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Yield Strength |
Tensile Strength Rm |
Elongation Af % Min. |
Tensile Str |
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A |
210 |
30,500 |
335 |
48,600 |
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|
335 |
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BR |
245 |
35,500 |
415 |
60,200 |
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|
415 |
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B |
245 |
35,500 |
415 |
60.200 |
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|
415 |
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X42R |
290 |
42,100 |
415 |
60,200 |
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|
415 |
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X42 |
290 |
42,100 |
415 |
60,200 |
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|
415 |
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X46 |
320 |
46,400 |
435 |
63,100 |
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|
435 |
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X52 |
360 |
52,200 |
460 |
66,700 |
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|
460 |
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X56 |
390 |
56,600 |
490 |
71,100 |
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|
490 |
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X60 |
415 |
60,200 |
520 |
75,400 |
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|
520 |
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X65 |
450 |
65,300 |
535 |
77,600 |
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|
535 |
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X70 |
485 |
70,300 |
570 |
82,700 |
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|
570 |
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Tensile Properties PSL2 |
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Pipe in SMLS and Welded |
Weld S |
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R,N,Q,M |
Yield Strength |
Tensile Strength Rm |
Ratio |
Elongation |
Tensile Str |
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Min. |
Max. |
Min |
Max. |
Max. |
Min. |
Min. |
|
B(RNQM) |
245 |
450 |
415 |
760 |
0.93 |
|
415 |
|
X42(RNQM) |
290 |
495 |
415 |
760 |
0.93 |
|
415 |
|
X46(NQM) |
320 |
525 |
435 |
760 |
0.93 |
|
435 |
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X52(NQM) |
360 |
530 |
460 |
760 |
0.93 |
|
460 |
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X56(NQM) |
390 |
545 |
490 |
760 |
0.93 |
|
490 |
|
X60(NQM) |
415 |
565 |
520 |
760 |
0.93 |
|
520 |
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X65(QM) |
450 |
600 |
535 |
760 |
0.93 |
|
535 |
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X70(QM) |
485 |
635 |
570 |
760 |
0.93 |
|
570 |
|
X80(QM) |
555 |
705 |
625 |
825 |
0.93 |
|
625 |
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X90(M) |
625 |
775 |
695 |
915 |
0.95 |
|
695 |
|
X100(M) |
690 |
840 |
760 |
990 |
0.97 |
|
760 |
|
X120(M) |
830 |
1050 |
915 |
1145 |
0.99 |
|
915 |
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CVN Impact Test 0℃(32F) |
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Out Diameter |
Full-size CVN absorbed energy Min. KV J(ft-lbf) |
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mm(In) |
≤X60 |
X60<,≤X65 |
X65<,≤X70 |
X70<,≤X80 |
X80<,≤X90 |
X90<,≤X100 |
X100<,≤X120 |
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≤508(20) |
27(20 |
27(20) |
27(20) |
40(30) |
40(30) |
40(30) |
40(30) |
|
508(20)<, |
27(20) |
27(20) |
27(20) |
40(30) |
40(30) |
40(30) |
40(30) |
|
762(30)<, |
40(30) |
40(30) |
40(30) |
40(30) |
40(30) |
54(40) |
54(40) |
|
914(36)<, |
40(30) |
40(30) |
40(30) |
40(30) |
40(30) |
54(40) |
68(50) |
|
1219(48)<, |
40(30) |
54(40) |
54(40) |
54(40) |
54(40) |
68(50) |
81(60) |
|
1422(56)<, |
40(30) |
54(40) |
68(50) |
68(50) |
81(60) |
95(70) |
108(80) |
Water pressure: The pressure stabilization time of all seamless pipes and welded pipes less than or equal to 457MM is not less than 5 seconds, and the pressure stabilization time of welded pipes larger than 457MM is not less than 10 seconds
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