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Technical Specification

Home Products Steel Pipes & Tubes M.S. Pipes International Standard EN 10255 Tolerances

International Standard EN 10255 Tolerances

Tolerances

Thickness

Light: - 8%
+ No limit

Medium: - 10%
+ No limit

Heavy: - 10%
+ No limit

Weight
For Individual Tube:
- 8%, + 10%

Mechanical Properties

Tensil strength 320 - 460 N / mm

Elongation 20 % (min)

Chemical Properties

C % 0.20%

Mn % 1.20%

P % 0.045%

S % 0.045%

Bend test

for tubes up to & including 2" (50 mm)

Flattening test

for tubes above 2" (50 mm)

Leak tightness test

100% Hydrotesting at 50 bar (5 MPa)

Galvanizing coating

1.6 oz/sq.feet (Inside + Outside surface)

Threading

As per BS : 21 pipe thread

Fitting (sockets)

As per BS : 1387

Tolerance on outside Diameter, Wall Thickness, Weight & Length of Pipe

ASTM Std. A53 Welded Steel Pipes and Seamless Steel Pipes
Available Sizes ( Dimensions and Weights)

NPS Designator	Outside Diameter		Wall thickness		Weight Class	Schedule No.	Weight
NPS Designator	In	mm	In	mm	Weight Class	Schedule No.	Lb / ft	Kg/ft	Kg/m
8	8.625	219.1	0.188	4.78	-	-	16.94	7.69	25.26
			0.203	5.16	-	-	18.26	8.29	27.22
			0.219	5.56	-	-	19.66	8.93	29.28
			0.250	6.35	-	20	22.36	10.15	33.31
			0.277	7.04	-	30	24.70	11.21	36.31
			0.312	7.92	-	-	27.70	12.58	41.24
			0.322	8.18	STD	40	28.55	12.96	42.55
			0.344	8.74	-	-	30.42	13.81	45.34
			0.375	9.52	-	-	33.04	15.00	49.20
			0.406	10.31	-	60	35.64	16.18	53.08
			0.438	11.13	-	-	38.30	17.39	57.08
			0.500	12.70	XS	80	43.39	19.70	64.64
			0.594	15.09	-	100	50.95	23.13	75.92
			0.719	18.26	-	120	60.71	27.56	90.44
			0.812	20.62	-	140	67.76	30.76	100.92
			0.875	22.22	XXS	-	72.42	32.88	107.88
			0.906	23.01	-	160	74.69	33.91	111.27

Product Range

STEEL PIPES & TUBES

STRUCTURAL STEEL PIPES & TUBES
Square Steel Pipes | Scaffolding Pipes & Tubes | Rectangular Pipes & Tubes | Hollow Sections

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