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ASTM Seamless pipe Size deviatio,ASTM Seamless Tube Size

We seamless steel pipes from OD1/4" to OD24", thickness SCH30, SCH40, SCH80, SCH160 and so on, according to the standards such as GB\ASTM\API 5L\API 5CT, DIN, and JIS.

main pipes: ASTM seamless pipe, alloy pipe, boiler tube, high pressure tube, fluid pipe, thick wall steel tube, cold-drawn steel tube, precision steel tube, large diameter seamless steel pipe, all kinds of special specifications material, diameter, wall thickness for the user.

(1)From 1/8"-1", our pipes are cold drawning.

(2)From 1-1/2"-12", our pipes are hot rolling.

(3)Over 12", our pipes are hot expansion

Steel Pipe

Standard	Size deviation
Standard	OD		thickness		Single
ASTM A53	≤1.5 inch	±1/64 inch [0.4mm]	±12.5%		±10%
ASTM A53	≥2 inch	±1%	±12.5%		±10%
ASTM A106	1/8 – 1.5 inch 6-40 mm	±1/64inch [0.4mm]	±12.5%		+10% -3.5%
	1.5-4 inch 40-100 mm	±1/32inch [0.8mm]
	4-8 inch 100-200 mm	+1/16inch[1.6mm] -1/32inch[0.8mm]
	8-18 inch 200-450 mm	+3/32inch[2.4mm] -1/32inch[0.8mm]
	18-26 inch 450-650 mm	+1/8inch[3.2mm] -1/32inch[0.8mm]
	26-34 inch 650-850 mm	+5/32inch[4.0mm] -1/32inch[0.8mm]
	34-48 inch 850-1200 mm	+3/16inch[4.8mm] -1/32inch[0.8mm]
ASTM A213			±10%
ASTM A252	±1%		±12.5%		+15% -5%
ASTM A335	1/8-1.5 inch 6-40 mm	+1/64inch[0.40mm] -1/64inch[0.40mm]	1/8-2.5inch 6-65mm	+20% -12.5%
	>1.5-4 inch >40-100 mm	+1/32inch[0.79mm] -1/32inch[0.79mm]	1/8-2.5inch 6-65mm	+20% -12.5%
	>4-8 inch >100-200 mm	+1/16inch[1.59mm] -1/32inch[0.79mm]	>2.5inch 65mm, t/D≤5%	+22.5% -12.5%
	>8-12 inch >200-300 mm	+3/32inch[2.38mm] -1/32inch[0.79mm]	>2.5inch 65mm, t/D≤5%	+22.5% -12.5%
	>12 inch >300mm	±1%	>2.5inch 65mm t/D>5%	+15.0% -12.5%
ASTM A500	≤1.9 inch 48 mm	±0.5%	10%
ASTM A500	≥2.0 inch 50 mm	±0.75%	10%
ASTM A501	≤1.5 inch	±1/64inch[0.4mm]			±3.5%
ASTM A501	>1.5 inch	±1/32inch[0.79mm]			±3.5%
ASTM A519 For Round Hot-finished Tubing	≤2.999inch 76.17mm	±0.02inch[0.51mm]
	3.0-4.499inch 76.2-114.27mm	±0.025inch[0.64mm]
	4.5-5.999inch 114.30-152.37mm	±0.031inch[0.79mm]
	6.0-7.499inch 152.4-190.47mm	±0.037inch[0.94mm]
	7.5-8.999inch 190.5-228.57mm	±0.045inch[1.14mm]
	9.0-10.750inch 228.6-273.05	±0.050inch[1.27mm]
ASTM A523	±1%
ASTM A524	1/8-1.5inch	+1/64inch[0.4mm] -1/32inch[0.8mm]	±12.5%		+6.5% -3.5%
	>1.5-4inch	±1/32[0.8mm]
	>4-8inch	+1/16inch[1.6mm] -1/32inch[0.8mm]
	>8-18inch	+3/32inch[2.4mm] -1/32inch[0.8mm]
	>18inch	+1/8inch[3.2mm] -1/32inch[0.8mm]
ASTM A556	<1.0inch[25.4mm]	±0.004inch 0.10mm	+20% 0
	1.0-1.25inch 25.4-31.7mm	±0.006inch 0.15mm
	1.0-1.25inch 25.4-31.7mm	±0.006inch 0.15mm
ASTM A589	<1.5inch	±1/64inch[0.4mm]			±5%
ASTM A589	≥1.5inch	±1%			±5%
ASTM A795	<1.5inch	±1/64inch[0.4mm]	±12.5%		±5%
ASTM A795	≥2inch	±1%	±12.5%		±5%

ASTM Seamless pipe Size deviatio,ASTM Seamless Tube Size

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