Large Diameter Spiral Welded Pipes

Technical Specification

Chemical Composition & Mechanical Properties -API

Specification

Type

Grade

Chemical Composition (%) Max

Mechanical properties

HydrostaticTest Pressure

Yieid Strength

Tensilie Strength

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

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

PSI

MPa

PSI

MPa

PSI

MPa

IS 3589

E & S

Fe - 330

0.16

1.20

0.040

28,000

195

22,000

330

P=2S t/D,shall not exceed 5 Mpa
S=Stress (60% of min SMYS)

Fe - 410

0.20

1.30

0.040

34,000

235

59,500

410

Fe - 450

0.25

1.20

0.040

40,000

275

65,000

450

15
(GL=5.65 Under Root area)

P - Hydrostatic Test Pressure (Mpa) ; D- Specified Outside Diameter (mm); T- Specified Wall Thickness (mm)
E: ERW (Electric Resistance Welded) ; S- Seamless ; SMYS - Specified Min Yield Strength

Specification	Type	Grade	Chemical Composition (%) Max										Mechanical Properties									Impact Energy J (Ft.lb) (min)	Hydrostatic Test Pressure
			Chemical Composition (%) Max										Yield Strength				Tensile Strength				% Elongation e
			C	Mn	P	S	Si	V	Nb	Ti	C.E		Min		Max		Min		Max
			C	Mn	P	S	Si	V	Nb	Ti	PCM	IIW	PSI	MPa	PSI	MPa	PSI	MPa	PSI	MPa
API 5L	E & S PSL-1	L210 or A	0.22	0.90	0.030	0.030	_	_	_	_	_	_	30,500	210	_	_	48,600	335	_	_	U.S Customary Unit e=625,000 A ^0.2 \ U ^0.9 Legend : e= Specified min. elongation A = Tensile test piece cross sectional area U=Specified min. tensile strength.	_	U.S Customary Unit P = 2 S t /D S.I Unit P = 2000 S t/D Where P= Hydrostatic test Pr . In PSI (Kpa) t = Specified W.T. inch (mm) D= Specified Outside diameter. Inch (mm) S= Fibre Stress in PSI (Mpa) 60% of Min.Y.S for all sizes for Grade A & B
		L245 or B	0.26	1.20	0.030	0.030	_	_	_	_	_	_	35,500	245	_	_	60,200	415	_	_		_
		L290 or X-42	0.26	1.30	0.030	0.030	_	_	_	_	_	_	42,100	290	_	_	60,200	415	_	_		_
		L320 or X-46	0.26	1.40	0.030	0.030	_	_	_	_	_	_	46,400	320	_	_	63,100	435	_	_		_
		L360 or X-52	0.26	1.40	0.030	0.030	_	_	_	_	_	_	52,200	360	_	_	66,700	460	_	_		_
		L390 or X-56	0.26	1.40	0.030	0.030	_	_	_	_	_	_	56,600	390	_	_	71,100	490	_	_		_
		L415 or X-60	0.26	1.40	0.030	0.030	_	_	_	_	_	_	60,200	415	_	_	75,400	520	_	_		_
		L450 or X-65	0.26	1.45	0.030	0.030	_	_	_	_	_	_	65,300	450	_	_	77,600	535	_	_
		L485 or X-70	0.26	1.65	0.030	0.030	_	_	_	_	_	_	70,300	485	_	_	82,700	570	_	_		_	60 % of Min .Y.S for all sizes <5 9\16'' for Grade X-42 and above 75% of Min.Y.S for size >5 9\16"& < 8 5\8" for Grade X-42 and above 85% of Min Y.S for sizes >8 5/8"& < 20" for Gr X-42 and above 90% 0f Min .Y.S for sizes >= 20" for Grade X-42 and above Std. Test Pressure limited to 3000 PSI (20700 kpa) for Grade X-42 and abover of Altermate test pressure limited to 7260 PSI (50000 kpa) for size <16" and 3630 PSI (25000 kpa) for sizes >= 16" for Gr. X-42 and above
Note : For Seamless, 'C' will be 0.28% for Gr. B to X-70 and 'Mn' for Gr X-65 to X-70 will be 1.40%
API 5L	E & S PSL-2	L245R or BR	0.24	1.2	0.025	0.015	0.4	_	_	0.04	0.25	0.43	35,500	245	65,300	450	60,200	415	110,200	760		27 /20
		L245N or BN	0.24	1.2	0.025	0.015	0.4	_	_	0.04	0.25	0.43
		L245Q or BQ	0.18	1.4	0.025	0.015	0.45	0.05	0.05	0.04	0.25	0.43
		L245M or BM	0.22	1.2	0.025	0.015	0.45	0.05	0.05	0.04	0.25	0.43
		L290R or X42R	0.24	1.2	0.025	0.015	0.45	0.06	0.05	0.04	0.25	0.43	42,100	290	71,800	495	60,200	415	110,200	760		27 (20)
		L290N or X42N	0.24	1.2	0.025	0.015	0.45	0.06	0.05	0.04	0.25	0.43
		L290Q or X42Q	0.18	1.4	0.025	0.015	0.45	0.05	0.05	0.04	0.25	0.43
		L290M or X42M	0.22	1.3	0.025	0.015	0.45	0.05	0.05	0.04	0.25	0.43
		L320N or X46N	0.24	1.4	0.025	0.015	0.45	0.07	0.05	0.04	0.25	0.43	46,400	320	76100	525	63,100	435	110,200	760		27 (20)
		L320Q or X45Q	0.18	1.4	0.025	0.015	0.45	0.05	0.05	0.04	0.25	0.43
		L320M or X46M	0.22	1.3	0.025	0.015	0.45	0.05	0.05	0.04	0.25	0.43
		L360N or X52N	0.24	1.4	0.025	0.015	0.45	0.1	0.05	0.04	0.25	0.43	52,200	360	76,900	530	66,700	460	110,200	760		27 (20)
		L360Q or X52Q	0.18	1.5	0.025	0.015	0.45	0.05	0.05	0.04	0.25	0.43
		L360M or X52M	0.22	1.4	0.025	0.015	0.45	_	_	_	0.25	0.43
		L390N or X56N	0.24	1.4	0.025	0.015	0.45	0.1	0.05	0.04	0.25	0.43	56,600	390	79,000	545	71,100	490	110,200	760		27 (20)
		L390Q or X56Q	0.18	1.5	0.025	0.015	0.45	0.07	0.05	0.04	0.25	0.43
		L390M or X56M	0.22	1.4	0.025	0.015	0.45	_	_	_	0.25	0.43
		L415N or X60N	0.24	1.4	0.025	0.015	0.45	0.1	0.05	0.04	As Agreed		60,200	415	81,900	565	75,400	520	110,200	760		27 (20)
		L415Q or X60Q	0.18	1.7	0.025	0.015	0.45	_	_	_	0.25	0.43
		L415M or X60M	0.12	1.6	0.025	0.015	0.45	_	_	_	0.25	0.43
		L450Q or X65Q	0.18	1.7	0.025	0.015	0.45	_	_	_	0.25	0.43	65,300	450	87,000	600	77,600	535	110,200	760		27 (20)
		L450M or X65M	0.12	1.6	0.025	0.015	0.45	_	_	_	0.25	0.43	65,300	450	87,000	600	77,600	535	110,200	760		27 (20)
		L485Q or X70Q	0.18	1.8	0.025	0.015	0.45	_	_	_	0.25	0.43	70,300	485	92,100	635	82,700	570	110,200	760		27 (20)
		L485M or X70M	0.12	1.7	0.025	0.015	0.45	_	_	_	0.25	0.43	70,300	485	92,100	635	82,700	570	110,200	760		27 (20)
		L555Q or X80Q	0.18	1.9	0.025	0.015	0.45	_	_	_	As Agreed		80,500	555	102,300	705	90,600	625	119,700	825		40(30)
		L555M or X80M	0.12	1.85	0.025	0.015	0.45	_	_	_	0.25	0.43	80,500	555	102,300	705	90,600	625	119,700	825		40(30)

Tolerance On Outside Diameter, Wall Thickness, Weight And Length Of Pipe

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

API 5L

E, S

< 2 3/8"(60.3 mm) OD : + 0.40mm, - 0.80mm

<= 6 5/8" (168.3 mm): + 1.60mm, - 0.40mm

Seamless :

Single Length of Pipe : + 10%, - 3.5%

17.5

5.33

2.74

22.5

6.86

> = 2 3/8" (60.3 mm) OD

> 6 5/8" (168.3 mm)

<=4.0 mm WT: + 0.6 mm, - 0.5 mm

Carloads ? 20 Ton : - 1.75%

to <= 24" (610 mm) : ± 0.0075 D

to ? 24" (610 mm) : ± 0.005 D

> 4.0 mm WT to < 25.0 mm WT : + 0.15t, - 0.125t

35.0

10.67

4.27

45.0

13.72

but max. of ± 3.20 mm for welded pipe

(but max. of ± 1.6 mm)

>= 25.0 mm WT : + 3.7 or + 0.1t (whichever is greater)

- 3.0 or 0.1t (whichever is greater)
ERW
<=5.0 mm WT : ± 0.5 mm
> 5.0 mm WT to < 15.0 mm WT : ± 0.1t
>=15.0 mm WT : ± 1.5 mm

IS : 3589

E,S

Upto 508 mm O.D.: Welded : ± 0.75%
Seamless : ± 1.0%

N.A

Welded : ± 10%
Seamless : + 20%, -12.5%,

Carload 10 MT & above : ± 7.5%