ERW Carbon Steel Pipe

ERW karbonstålrør

OD (Utdiameter): 21,3-660mm
WT (veggtykkelse): 1.0-20mm eller 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
for efw rør
karbonstål efw-rør: ASTM A671, ASTM A672
legert stål efw rør: ASTM A691
Belegg
3PE belegg
3PP belegg
FBE belegg
Epoxy belegg
Spesialmaleri

Toleranse for utvendig diameter

Standard	Ut diameter	Toleranse for rørende	Toleranse for rørkropp
API 5L	219.1-273.1	+1,6 mm, -0,4 mm	±0.75%
	274.0-320	+2,4 mm, -0,8 mm	±0.75%
	323.9-457	+2,4 mm, -0,8 mm	±0.75%
	508	+2,4 mm, -0,8 mm	±0.75%
	559-610	+2,4 mm, -0,8 mm	±0.75%

Toleranse for veggtykkelse

Standard	Karakter	Ut diameter	Veggtykkelse
API 5L	A	219.1-457	+15%, -12.5%
	B	508-610	+17.5%, -12.5%
	X42-X80	508-610	+19.5%, -8%

Kjemisk analyse og mekaniske egenskaper

Standard	Klasse	Karakter	Kjemisk analyse(%)				Mekaniske egenskaper(min)(Mpa)
Standard	Klasse	Karakter	C	Mn	P	S	Strekkstyrke	Strekkgrense
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

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