China ASTM A252 GR.3 SSAW Steel Piles Pipe Manufacturer and Supplier

ASTM A252 GR.3 SSAW Steel Piles Pipe

Size: 219mm-3500mm

Wall thickness: 5mm-25mm

Surface: Bare/Black/Varnish/3LPE/Galvanized/According to

customer’s request.

Material: ASTM A252 GR.3

End: Plain/Beveled end

Length: 5.8m,6m,11.8m,12m or customerized.

Packing: In loose.

End protector: Plastic pipe cap or Iron Protector.

Payment terms: LC/TT/DP

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Product Description

SPECIFICATIONS FOR SSAW STEEL PIPE
1.Size	1)OD:219mm-3500mm
	2)Wall Thickness:5mm-30mm
	3)SCH20,SCH40,STD,etc
2.Standard:	ASTM A53,API 5L,EN10219,EN10210,ASTM A252 etc
3.Material	Q235, Q345,ASTM A53 Gr.B,API5L Gr.B X42 X52 X60 X70 X80,S235JRH, S355J0H etc
4.Usage:	1)Low pressure liquid, water, gas, oil, line pipe
	2)Structure pipe, pipe piling construction
	3)Fence, door pipe
5.Coating	1) Bared 2) Black Painted (varnish coating) 3) Galvanized 4) Oiled 5) PE,3PE, FBE, corrosion resistant coating, Anti corrosion coating
6.Technique	Spiral welded steel pipe
7.Welded Line Type	SSAW
8.Inspection:	With Hydraulic Testing, RT, UT or inspection by 3rd party
9.Delivery	Container, Bulk Vessel.
10. About Our Quality	1) No damage, no bent 2) No burrs or sharp edges and no scraps 3) Free for oiled&marking 4) All goods can be checked by third party inspection before shipment

Dimension Checking of SSAW Steel Pipe:

Manufacturing Process of ASTM A252 SSAW Steel Pipe:

Packing for ASTM A252 SSAW Steel Pipe:

● Bare pipe or Black / Varnish coating ( customized);

● In loose;

● Both ends with end protectors;

● Plain end , bevel end;

● Marking.

Tensile Requirements:

Tensile Requirements
	Grade 1	Grade 2	Grade 3
Tensile strength, min, psi (MPa)	50 000 (345)	60 000 (415)	66 000 (455)
Yield point or yield strength, min, psi(MPa)	30 000 (205)	35 000 (240)	45 000 (310)
Basic minimum elongation for nominal wall thicknesses%6 in. (7.9 mm) or more:
Elongation in 8 in. (203.2 mm), min, %	18	14	…
Elongation in 2 in. (50.8 mm), min, %	30	25	20
For nominal wall thicknesses less than %6 in. (7.9 mm), the deduction from the basic minimum elongation in 2 in. (50.08 mm) for each Vzi – in. (0.8 mm) decrease in nominal wall thickness below %6 in. (7.9 mm), in percentage points	1.5A	1.25A	1.0A…

Table 2 Gives the Computed Minimum Values:

	Calculated Minimum Elongation Values
Nominal Wall Thickness	Elongation in 2 in. (50.8 mm), min, %
in.	mm.	Grade 1	Grade 2	Grade 3
5/16 (0.312)	7.9	30.00	25.00	20.00
9/32 (0.281)	7.1	28.50	23.75	19.00
1/4 (0.25)	6.4	27.00	22.50	18.00
7/32 (0.219)	5.6	25.50	21.25	17.00
3/16 (0.188)	4.8	24.00	20.00	26.00
11/6 (0.172)	4.4	23.25	19.50	15.50
5/32 (0.156)	4.0	22.50	18.75	15.00
9/64 (0.141)	3.6	21.75	18.25	14.50
1/8 (0.125)	3.2	21.00	17.50	14.00
7/64 (0.109)	2.8	20.25	16.75	13.50
The above table gives the calculated minimum elongation values for various nominal wall thicknesses. Where the specified nominal wall thickness is intermediate to those shown above, the minimum elongation value shall be determined as follows:
Grade
1. E=48t+15.00
2. E=40t+12.50
3. E=32t+10.00
where:
E = elongation in 2 in., %, and
T = specified nominal wall thickness, in.

Tolerance of Outside Diameter, Wall Thickness, Length and Weight:

Outside Diameter	The outside diameter of pipe piles shall not vary more than ±1% from the specified outside diameter.
Wall thickness	The wall thickness at any point shall not be more than 12.5% under the specified nominal wall thickness.
Lengths	Pipe piles shall be furnished in single random lengths, double random lengths, or in uniform lengths as specified in the purchase order, in accordance with the following limits:	Single random lengths	16 to 25ft (4.88 to 7.62mm), inch
		Double random lengths	Over 25ft (7.62m) with a minimum average of 35ft (10.67m)
		Uniform lengths	Length as specified with a permissible variation of ±1 in.
Weight	Each length of pipe pile shall be weighed separately and its weight shall not vary more than 15% over or 5% under its theoretical weight, calculated using its length and its weight per unit length.