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API 5L X70 LSAW pipe specifications

Apr 27, 2025

API 5L X70 LSAW pipe specifications

X70 Pipe yield strength

Grade

Yield Strength

Tensile Strength

Yield to Tensile

Elongation
 

min. (KSI)

min. (KSI)

Ratio (max)

%
API 5L X70

70

82

0.93

17

API 5L GrB X70 PSL 1/2 Mechanical Properties

Grade Yield Strength Mpa Tensile Strength Mpa Raito Elongation
  min max min max max min
BN 245 450 415 655 0.93 f
BQ
X70Q 485 635 570 760 0.93 f

 

X70 Pipe properties

API 5L X70 PSL 1 Chemical Requirements
Grade Composition, %
C max Mn max P S max V max Nb max Ti max
min max
B 0.28 1.2 – 0.03 0.03 c.d c,d d
X70 0.28 1.4 – 0.03 0.03 f f f

 

API 5L X70Q PSL 2 Chemical Requirements
Grade Composition, %
C Si Mn P S V Nb Ti Other
X70Q 0.18 0.45 1.8 0.025 0.015 g g g h,l

 

Grade

Chemical Composition
 

C

Si

Mn

P

S

V

Nb

Ti
API 5L X70

0.17

0.45

1.75

0.020

0.010

0.10

0.05

0.06

API 5L X70 pipe wall thickness & schedule chart

Nominal wall thickness/ Dimensions for API 5L X70 Pipe/ API 5L GR.B X70 seamless pipes according ANSI B36.10:

NPS
(in)		 Outside Diameter
(in)		 API 5L X70 Pipe Schedule
SCH 10 SCH 20 SCH 30 SCH STD SCH 40 SCH 60 SCH XS SCH 80 SCH 100 SCH 120 SCH 140 SCH 160 SCH XXS
Wall Thickness (in)
1/8 0.405       0.068 0.068   0.095 0.095          
1/4 0.540       0.088 0.088   0.119 0.119          
3/8 0.675       0.091 0.091   0.126 0.126          
1/2 0.840       0.109 0.109   0.147 0.147       0.187 0.294
3/4 1.050       0.113 0.113   0.154 0.154       0.219 0.308
1 1.315       0.133 0.133   0.179 0.179       0.250 0.358
1 1/4 1.660       0.140 0.140   0.191 0.191       0.250 0.382
1 1/2 1.900       0.145 0.145   0.200 0.200       0.281 0.400
2 2.375       0.154 0.154   0.218 0.218       0.344 0.436
2 1/2 2.875       0.203 0.203   0.276 0.276       0.375 0.552
3 3.500       0.216 0.216   0.300 0.300       0.438 0.600
3 1/2 4.000       0.226 0.226   0.318 0.318          
4 4.500       0.237 0.237   0.337 0.337   0.438   0.531 0.674
5 5.563       0.258 0.258   0.375 0.375   0.500   0.625 0.750
6 6.625       0.280 0.280   0.432 0.432   0.562   0.719 0.864
8 8.625   0.250 0.277 0.322 0.322 0.406 0.500 0.500 0.594 0.719 0.812 0.906 0.875
10 10.750   0.250 0.307 0.365 0.365 0.500 0.500 0.594 0.719 0.844 1.000 1.125 1.000
12 12.750   0.250 0.330 0.375 0.406 0.562 0.500 0.688 0.844 1.000 1.125 1.312 1.000
14 14.000 0.250 0.312 0.375 0.375 0.438 0.594 0.500 0.750 0.938 1.094 1.250 1.406  
16 16.000 0.250 0.312 0.375 0.375 0.500 0.656 0.500 0.844 1.031 1.219 1.438 1.594  
18 18.000 0.250 0.312 0.438 0.375 0.562 0.750 0.500 0.938 1.156 1.375 1.562 1.781  
20 20.000 0.250 0.375 0.500 0.375 0.594 0.812 0.500 1.031 1.281 1.500 1.750 1.969  
22 22.000 0.250 0.375 0.500 0.375   0.875 0.500 1.125 1.375 1.625 1.875 2.125  
24 24.000 0.250 0.375 0.562 0.375 0.688 0.969 0.500 1.219 1.531 1.812 2.062 2.344  
30 30.000 0.312 0.500 0.625 0.375     0.500            
32 32.000 0.312 0.500 0.625 0.375 0.688                
34 34.000 0.312 0.500 0.625 0.375 0.688                
36 36.000 0.312 0.500 0.625 0.375 0.750                
42 42.000   0.500 0.625 0.375 0.750                
  • STD - Standard
  • XS - Extra Strong
  • XXS - Double Extra Strong
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