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MS ERW Black & GI Pipes
Home >> MS ERW Black & GI Pipes

Technical Specifications

Chemical Composition & Mechanical Properties
Specification Grade Chemical Composition (% ) Maximum MECHANICAL PROPERTIES Impact
Energy
J (ft\lb)
C Mn P S Si C.E. Yeild Strength Tensile Strength % Elongation
e
PCM IIW Min Max MIN MAX
PSI MPa PSI MPa PSI MPa PSI MPa
API 5L
PSL-1
L210 or A 0.22 0.9 0.03 0.03 _ _ _ 30500 210 _ _ 48600 335 _ _ US Customary Unit
e= 625,000 A0.2 /U 0.9
S.I. Unit e=1940 A0.2/U0.9
_
L245 or B 0.26 1.2 0.03 0.03 _ _ _ 35500 245 _ _ 60200 415 _ _ _
L290 or X- 42 0.26 1.3 0.03 0.03 _ _ _ 42100 290 _ _ 60200 415 _ _ _
L320 or X- 46 0.26 1.4 0.03 0.03 _ _ _ 46400 320 _ _ 63100 435 _ _ _
L360 or X- 52 0.26 1.4 0.03 0.03 _ _ _ 52200 360 _ _ 66700 460 _ _ _
L390 or X- 56 0.26 1.4 0.03 0.03 _ _ _ 56600 390 _ _ 71100 490 _ _ _
L415 or X- 60 0.26 1.4 0.03 0.03 _ _ _ 60200 415 _ _ 75400 520 _ _ _
L450 or X- 65 0.26 1.45 0.03 0.03 _ _ _ 65300 450 _ _ 77600 535 _ _ _
L485 or X- 70 0.26 1.65 0.03 0.03 _ _ _ 70300 485 _ _ 82700 570 _ _ _
API 5L
PSL-2
L245M or BM 0.22 1.20 0.025 0.015 0.45 0.25 0.43 35500 245 65300 450 60200 415 110200 760 27 (20)
L290M or X- 42M 0.22 1.30 0.025 0.015 0.45 0.25 0.43 42100 290 71800 495 60200 415 110200 760 27 (20)
L320M or X- 46M 0.22 1.30 0.025 0.015 0.45 0.25 0.43 46400 320 76100 525 63100 435 110200 760 27 (20)
L360M or X- 52M 0.22 1.40 0.025 0.015 0.45 0.25 0.43 52200 360 76900 530 66700 460 110200 760 27 (20)
L390M or X- 56M 0.22 1.40 0.025 0.015 0.45 0.25 0.43 56600 390 79000 545 71100 490 110200 760 27 (20)
L415M or X- 60M 0.12 1.60 0.025 0.015 0.45 0.25 0.43 60200 415 81900 565 75400 520 110200 760 27 (20)
L450M or X- 65M 0.12 1.60 0.025 0.015 0.45 0.25 0.43 65300 450 87000 600 77600 535 110200 760 27 (20)
L485M or X- 70M 0.12 1.70 0.025 0.015 0.45 0.25 0.43 70300 485 92100 635 82700 570 110200 760 27 (20)
IS: 1978 YST-210 0.22 0.90 0.040 0.050 _ _ _ 210 _ _ _ 330 _ _ e=1942.57 A0.2/ U0.9 _
YST-240 0.27 1.15 0.040 0.050 _ _ _ 240 _ _ _ 410 _ _ _
IS:1979 YST-290 0.28 1.25 0.04 0.05 _ _ _ 290 _ _ _ 410 _ _ e=1942.57 A0.2 / U0.9 _
YST-320 0.3 1.35 0.04 0.05 _ _ _ 320 _ _ _ 430 _ _ _
YST-360 0.3 1.35 0.04 0.05 _ _ _ 360 _ _ _ 450*\500** _ _ _
YST-390 0.26 1.35 0.04 0.05 _ _ _ 390 _ _ _ 490*\520** _ _ _
YST-410 0.26 1.35 0.04 0.05 _ _ _ 410 _ _ _ 520*/540** _ _ _
YST-450 0.26 1.4 0.04 0.05 _ _ _ 450 _ _ _ 530*/550** _ _ _
YST-480 0.23 1.6 0.04 0.05 _ _ _ 480 _ _ _ 565 _ _ _
Appilcable for Pipes with 508 mm OD and any wall thickness and Pipes with 508 mm OD and larger. And wall thickness >9.5 mm
Appilicable for pipes with 508 mm OD and larger and wall thickness < 9.5 mm.
IS:1239 _ _ _ _ 0.050 0.050 _ _ _ _ _ _ _ 320 _ 12 upto 25 mm NB
20 ABOVE 25 mm
_
IS:3589 Fe 330 0.16 1.2 0.04 0.04 _ _ _ 195 _ _ _ 330 _ _ 20
18
15
GL=5.65 Under Root Area
_
Fe 410 0.2 1.3 0.04 0.04 _ _ _ 235 _ _ _ 410 _ _ -
Fe 450 0.25 1.2 0.04 0.04 _ _ _ 275 _ _ _ 450 _ _ _
IS:1161 YST-210 0.12 0.6 0.040 0.040 _ _ _ 210 _ _ _ 330 _ _ 20
17
14
GL=5.65 Under Root Area
Distance between plates for weld -75%, 85%,85%
for parent -60%,75%,75%, NA
YST-240 0.16 1.2 0.040 0.040 _ _ _ 240 _ _ _ 410 _ _
YST-310 0.25 1.3 0.040 0.040 _ _ _ 310 _ _ _ 450 _ _
IS:4270 Fe410 _ _ 0.040 0.040 _ _ _ 23.5 _ _ _ 410 _ _ 15
13
GL=5.65 Under Root Area
Hardness
=230 HV max.
Fe 450 _ _ 0.040 0.040 _ _ _ 27.5 _ _ _ 450 _ _


Specification Type Grade Chemical Composition (%) Mechanical Properties Hydrostatic Test Pressure Hardness (max.)
C Mn P S Si Cr Mo Cu Ni V Yield Strength Tensile Strength % Elongation (G.L. 50 mm WT 8 mm)
e (min.)
Min Max. Min Max. Max Max Min. Max Min. Max Min. Max Max Max Max Min. Min.
PSI MPa PSI MPa
ASTM
A-53
E & S A - 0.25 - 0.95 0.050 0.045 - - - 0.40 - 0.15 0.40 for S
0.50 for E
0.40 0.08 30,000 205 48,000 330 e=625000 A0.2/U0.9 P= 2 S t/D or 2800 PSI (19.3 MPa) for size > 3.5" OD P=2 S t/D or 2500 PSI (17.0 MPa) for size <=3.5" OD whichever is smaller S= 0.60 times minimum specified YS PSI (KPa)
E & S B - 0.30 - 1.20 0.050 0.045 - - - 0.40 - 0.15 0.40 for S
0.50 for E
0.40 0.08 35,000 240 60,000 415

Tolerance on Outside Diameter/Dimensions/Wall Thickness, Weight & Length of Pipe
Spec. Outside Diameter Wall Thikness Weigth Length
Nominal Avg. (Min) Minimum Maximum
Pipe Body Pipe End ft mtr ft mtr ft mtr ft mtr
API 5L <2 3/8"(60.3 mm)OD
=+0.40 mm, -0.80 mm
> 2 3\8"(60.3 mm) OD t ± 0.0075 D
(but max of 3.2 mm)
<=6 5\8"(168.3mm)+1.60mm
-0.40 mm
>6 5\8"(168.3mm ) ±0.005 D
(but max of ±1.6mm)
<=5.0 mm WT ±0.5mm
>5.0 mm WT to <15.0 mm
WT±0.1t
>15.0 mm WT±1.5 mm
Single length of pipe + 10%,-3.5%
Car Loades -40,000lb (18.144 Kg)
or more -1.75% less, -3.5%
20 6.0 17.5 5.33 9.0 2.74 23 6.86
40 12 35 10.7 14.0 4.27 45.0 13.72
IS:1239 &
BS:1387
As Per table N.A Light -8% + not limited
Medium & Heavy -10 %
+ Not limited
Car Loades 10 MT Light ±5% M & H ±7.5%
Single Tube Light - 8% + 10%
Med & Heavy±10%
- 6.0 - - - 4.0 - 7.0
- 12.0 - - - 7.0 - 10
Tolarance- Exact length ±6, -0mm ,
Approximate length ±150 mm
IS :3589 Upto 508mm OD =± 0.75% N.A ±10% Car Loades 10 MT and above ±7.5% - 6.0 - - - 4.0 - 7.0
- 12.0 - - - 7.0 - 14.0
Tolarance- For exact length +10, -0 mm
IS:4270 ±1.0% - Upto 406.4mm OD =+15% -12.5% +10% -8% - 6.0 - - - 4.0 - 7.0
IS :1161 Upto 48.3 mm OD +0.4mm, -0.8 mm
Over 48.3 mm ±1.0%
N.A -10%, + not limited Carload 10MT light ±5% M & H±7.5%
Single Tube Light -8%+ 10%
Med & Heavy±10%
- 6 - - - 4 - 7
Tolarance - Exact Length - as agreed
Random Length 4 to 7 mtr
ASTM A-53 1-1\2 NPS & under =±0.4 mm
2" NPS and over =±1.0%
N.A At any point -12.5%(max)
Tm=Tn X 0.875.
Tn=Nominal w.t
Tm=min.w.t
±10% 20 6.0 - - 16 4.88 22 6.71
40 12.0 35 10.67 22 6.71 - -


SPEC. TYPE OUTSIDE DIAMETER WALL THICKNESS WEIGHT LENGTH
PIPE BODY PIPE ENDS (PLAIN END) NOMINAL AVG(min) MINIMUM MAXIMUM
ft. Mtr ft. Mtr ft. Mtr ft. Mtr
IS: 1978 E,S 48.3 and less : + 0.40 mm, - 0.80mm ? 273.1mm O.D. : +1.60mm, - 0.40mm < 73mm O.D. : +20%, -12.5% Single length pipe : + 10%, - 3.5% - 6 - 5.3 - 2.7 - -
60.3 and above : ± 1% 323.9 mm O.D and 88.9 mm O.D. : +18%, -12.5% Carloads - for min 18000Kg : - 1.75%
larger pipe : + 2.40 mm, -0.80 mm Seamless :101.6mm O.D. & larger : +15%, -12.5% - 12 - 10.7 - 4.3 - -
Welded : 101.6 to 457.2 mm : +15%, -12.5 %
Welded : 508.0 mm & larger : + 17.5%, -10%
IS : 1979 E,S < 508.0 mm O.D.: ± 0.75 % <=273.1mm O.D. : +1.60mm, - 0.40mm Upto 457.0 mm O.D. : +15%, - 12.5% Single length of pipe : + 10%, - 3.5% - 6 - 5.3 - 2.7 - -
508.0 mm O.D. & larger : ± 1.0 % 323.9 mm O.D and Welded : 508.0mm & larger : +19.5%, - 8%
larger pipe : + 2.40 mm, -0.80 mm Seamless : +17.5%, -10% - 12 - 10.7 - 4.3 - -




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