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
							PCM	IIW	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 A ^0.2 /U ^0.9 S.I. Unit e=1940 A ^0.2/U ^0.9	_
	L210 or A	0.22	0.9	0.03	0.03	_	_	_	30500	210	_	_	48600	335	_	_		_
	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 A ^0.2/ U ^0.9	_
IS: 1978	YST-240	0.27	1.15	0.040	0.050		_	_	_	240	_	_	_	410	_	_	e=1942.57 A ^0.2/ U ^0.9	_
IS:1979	YST-290	0.28	1.25	0.04	0.05		_	_	_	290	_	_	_	410	_	_	e=1942.57 A ^0.2 / U ^0.9	_
	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: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	_	_		_
	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	_	_
	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	_	_
	Fe 450	_	_	0.040	0.040		_	_	_	27.5	_	_	_	450	_	_

Specification

Type

Grade

Chemical Composition (%)

Mechanical Properties

Hydrostatic Test Pressure

Hardness (max.)

Yield Strength

Tensile Strength

% Elongation (G.L. 50 mm WT 8 mm) e (min.)

Min

Max.

Min

Max.

Max

Min.

Max

Min.

Max

Min.

Max

Min.

PSI

MPa

PSI

MPa

ASTM
A-53

E & S

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

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
		PIPE BODY	PIPE ENDS (PLAIN END)			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	-	-