Alloy Seamless Steel Pipe-Alloy Steel Pipe-Hunan Xunhong Steel Co.,Ltd

Alloy Seamless Steel Pipe

Size:Outside Diameter: 18"- 26",Wall Thickness: SCH 30,30,40,60,80,120,140,160 XS,XXS,STD; Length: Single Random, Double Random,Cut Length max to 23m

Standard:ASTM A335/A335M, ASTM A213/213M,DIN17175-79, JIS3467-88,GB5310-95

Material:P5,T5,P11,P12,STFA22,P22,T91, T9,WB36

Ends:Plain End, Beveled End, Thread End

Usage:Petroleum, Chemical Engineering, Electricity, Bolier

Application:Petroleum, Chemical Engineering, Electricity, Boiler

Painting & Coating:Black coating , oil/varnish, FBE, 2PE, 3PE, galvanized etc Packaging Detail: Packing in bundles or for the client's requirement

Alloy pipe is a kind of seamless steel pipe, its performance is much higher than that of general seamless steel pipe, because this type of steel pipe contains more Cr, its high temperature resistance, low temperature resistance, corrosion resistance performance is much better than other Steel pipe , so the alloy pipe is widely used in petroleum, aerospace, chemical, electric power, boiler, military and other industries.

Outside diameter & Tolerance

ASTM A450	Hot Rolled	Outside diameter,mm	Tolerance,mm
		OD≤101.6	+0.4/-0.8
		101.6≤OD≤190.5	+0.4/-1.2
		190.5≤OD≤228.6	+0.4/-1.6
	Cold Drawn	Outside diameter,mm	Tolerance,mm
		OD≤25.4	±0.10
		25.4≤OD≤38.1	±0.15
		38.1≤OD≤50.8	±0.20
		50.8≤OD≤63.5	±0.25
		63.5≤OD≤76.2	±0.30
		76.2≤OD≤101.6	±0.38
		101.6≤OD≤190.5	+0.38/-0.64
		190.5≤OD≤228.6	+0.38/-1.14
ASTM A530 & ASTM A335	NPS	Outside diameter,mm	Tolerance,mm
		1/8≤OD≤1-1/2	±0.40
		1-1/2≤OD≤4	±0.79
		4≤OD≤8	+1.59/-0.79
		8≤OD≤12	+2.38/-0.79
		OD≥12	±1%

Wall thickness & Tolerance

ASTM A450	Hot Rolled	Outside diameter,mm	Tolerance,%
		OD≤101.6,WT≤2.4	+40/-0
		OD≤101.6,2.4＜WT≤3.8	+35/-0
		OD≤101.6,3.8＜WT≤4.6	+33/-0
		OD≤101.6,WT＞4.6	+28/-0
		OD＞101.6,2.4＜WT≤3.8	+35/-0
		OD＞101.6,3.8＜WT≤4.6	+33/-0
		OD＞101.6,WT＞4.6	+28/-0
	Cold Drawn	Outside diameter,mm	Tolerance,%
		OD≤38.1	+20/-0
		OD≥38.1	+22/-0
ASTM A530	NPS	Outside diameter,inch	Tolerance,%
		1/8≤OD≤2-1/2	+20.0/-12.5
		3≤OD≤18,WT/OD≤5%	+22.5/-12.5
		3≤OD≤18,WT/OD≥5%	+15.0/-12.5
		OD≥20,WT/OD≤5%	+22.5/-12.5
		OD≥20,WT/OD＞5%	+15.0/-12.5

ASTM A335-for Seamless Ferritic Alloy Steel Pipe for High-Temperature Service

ASTM A519-for Seamless Carbon and Alloy Steel Mechanical Tubing

ASTM A213-for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Super heater, and Heat-Exchange Tubes

Chemical Composition

C,%	Mn,%	P,%	S,%	Si,%	Cr,%	Mo,%
0.05-0.15	0.30-0.60	0.025max	0.025max	0.50-1.00	1.00-1.50	0.44-0.65

Mechanical Properties

Tensile Strength,Mpa		Yield Strength,Mpa		Elongation %
415 min		205 min		30 min