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Rumah Produk Paip Keluli Dikimpal Paip Keluli ERW

ERW steel pipe

ERW (Electric Resistance Welded) pipe is a straight seam electric resistance welded pipe, a steel pipe whose weld is parallel to the longitudinal direction of the steel pipe, which is commonly used for oil, gas, water transmission, machinery manufacturing, etc. It has sturdy frame which is strong enough to make sure of the stable operation. And it is resistant to water, oxygen and corrosion, which is endurable with long life span.

Saiz :
1mm-150mm
Standard :
ASTM AISI DIN JIS GB EN
bahan :
Stainless steel, Nickel alloy

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Maklumat produk

ERW Steel Pipe

Sizes:

OD (Out Diameter): 21.3-660mm
WT (Wall Thickness): 1.0-20mm or sch5, sch10, sch40, sch80, st, xs

Standard:

for erw pipe

ASTM A53 B, A106, ASTM A178, ASTM A252

API 5L X42/46/52/56/60/70

ASTM A500, ASTM A513

EN 10204/10217 S235JR,S275JR, S355,S355JR,S355J2H

EFW PIPE

carbon steel efw pipe: ASTM A671,ASTM A672

alloy steel efw pipe: ASTM A691

Coating

3PE Coating

3PP Coating

FBE Coating

Epoxy Coating

Special Painting

Uses:

For ERW Line Pipe

For ERW Casing

For ERW Structure Tube

For High pressure and high temperature

ERW Pipe

Tolerance of Outside Diameter

Standard	Out Diameter	Tolerance of Pipe End	Tolerance of Pipe Body
API 5L	219.1～273.1	+1.6mm, -0.4mm	±0.75%
	274.0～320	+2.4mm, -0.8mm	±0.75%
	323.9～457	+2.4mm, -0.8mm	±0.75%
	508	+2.4mm, -0.8mm	±0.75%
	559～610	+2.4mm, -0.8mm	±0.75%

Tolerance of Wall Thickness

Standard	Grade	Out Diameter	Wall Thickness
API 5L	A	219.1～457	+15%, -12.5%
	B	508～610	+17.5%, -12.5%
	X42-X80	508～610	+19.5%, -8%

Chemical Analysis and Mechanical Properties

Standard	Class	Grade	Chemical Analysis(%)				Mechanical Properties(min)(Mpa)
Standard	Class	Grade	C	Mn	P	S	Tensile Strength	Yield Strength
API 5L	PSL1	B	0.26	1.20	0.030	0.030	414	241
		X42	0.26	1.30	0.030	0.030	414	290
		X46	0.26	1.40	0.030	0.030	434	317
		X52	0.26	1.40	0.030	0.030	455	359
		X56	0.26	1.40	0.030	0.030	490	386
		X60	0.26	1.40	0.030	0.030	517	414
		X65	0.26	1.45	0.030	0.030	531	448
		X70	0.26	1.65	0.030	0.030	565	483
	PSL2	B	0.22	1.20	0.025	0.015	414	241
		X42	0.22	1.30	0.025	0.015	414	290
		X46	0.22	1.40	0.025	0.015	434	317
		X52	0.22	1.40	0.025	0.015	455	359
		X56	0.22	1.40	0.025	0.015	490	386
		X60	0.22	1.40	0.025	0.015	517	414
		X65	0.22	1.45	0.025	0.015	531	448
		X70	0.22	1.65	0.025	0.015	565	483
		X80	0.22	1.85	0.025	0.015	621	552

High-frequency straight seam electric-resistance welded steel pipe(erw steel pipe) is hot-rolled coil after forming machine, the use of high-frequency current skin effect and proximity effects, the tube edge heating and melting, squeeze roller under pressure welding to achieve production.

High-frequency resistance welding steel pipe, welding pipe and ordinary welding process is not the same, the weld is made of the base metal melt from the body, the mechanical strength is better than the general pipe. Smooth appearance, high precision, low cost weld high and small, favorable 3PE anti-corrosion coating. There are significant differences in the welding methods between high frequency welded pipe and submerged arc welded pipe. As the welding is done instantly at high speed, the difficulty of ensuring the quality of welding is much higher than that of submerged arc welding.

ERW Casing

Standard: API SPEC 5CT

Application: Casing serves as wall of well

Specification

OD		WT		End Type
inch	mm	inch	mm	Grade
				J55	M65	N80/L80-1	P110
				K55	M65	N80/L80-1	P110
8 5/8	219.08	0.304	7.72	-	PS	-	-
		0.352	8.94	PSLB	PSLB	-	-
		0.400	10.16	PSLB	PSLB	PLB	PLB
		0.450	11.43	-	PLB	PLB	PLB
		0.500	12.70	-	-	PLB	PLB
9 5/8	244.48	0.352	8.94	PSLB	PSLB	-	-
		0.395	10.03	PSLB	PSLB	PLB	PLB
		0.435	11.05	-	PLB	PLB	PLB
		0.472	11.99	-	PLB	PLB	PLB
		0.545	13.84	-	-	PLB	PLB
10 3/4	273.05	0.350	8.89	PSB	PSB	-	-
		0.400	10.16	PSB	PSB	-	-
		0.450	11.43	PSB	PSB	PSB	PSB
		0.500	12.57	-	PSB	PSB	PSB
		0.545	13.84	-	-	-	PSB
13 3/8	339.72	0.380	9.65	PSB	PSB	-	-
		0.430	10.92	PSB	PSB	-	-
		0.480	12.19	PSB	PSB	PSB	PSB
		0.514	13.06	-	-	PSB	PSB
16	406.40	0.438	11.13	PSB	-	-	-
		0.495	12.57	PSB	-	-	-
		0.656	16.66	P	-	-	-
18 5/8	473.08	0.435	11.05	PSB	-	-	-
20	508	0.438	11.13	PSLB	-	-	-
		0.500	12.70	PSLB	-	-	-
		0.635	16.13	PSLB	--	-	-

Dimensional Tolerance

Standard	Tolerance of O.D.	Tolerance of W.T.	Straightness of Pipe Body	Straightness of Pipe End	Tolerance for Weight
API 5CT	+1%, -0.5%	-12.5%	≤0.2%L	≤3.18mm	+6.5%, -3.5%

Mechanical Properties

Standard	Grade	Yield Strength(Mpa)	Tensile Strength(Mpa)	Hardness(HRC)	Impact Energy(J)(min)	Impact Temperature(℃)
API 5CT	J55	379-552	≥517	-	T-10-20(SR16)	21
	K55	379-552	≥655	-	L-10-27(SR16)	21
	M65	448-586	≥586	≤22	T-10-20, L-10-41 C19-20, C76-77(SR16)	0
	L80	552-655	≥655	≤23
	N80	552-758	≥689	-
	P110	758-965	≥862	-

Chemical Composition(%)

Standard	Grade	C	Mn	P	S	Ni	Cu	Si
API 5CT	J55	-	-	≥0.030	≥0.030	-	-	-
	K55	-	-	≥0.030	≥0.030	-	-	-
	M65	-	-	≥0.030	≥0.030	-	-	-
	L80	≥0.43	≥1.90	≥0.030	≥0.030	≥0.25	≥0.35	≥0.45
	N80	-	-	≥0.030	≥0.030	-	-	-
	P110	-	-	≥0.030	≥0.030	-	-	-

HOT TAGS : seamless carbon steel pipe nickel alloy seamless pipe carbon steel pipe paip bulat keluli tahan karat

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