Tubes China - The One-stop Tubes Supermarket !

We are in advantage for supplying high pressure boiler tube in China. We have the one-up quality for this high pressure pipe and have won much good reputation in boiler and electronic power station field.

Our main size is as follows:

cold drawn tubes：∮8-∮76mm*1～10mm
hot finished tubes：∮32-∮127mm*4～25mm

APPLICATION: Economizer tube, Water wall tube, Superheater tube, Rehester pipe, Main steam pipe, Hot reheat pipe, Feed water heater tube, Feed water pipe
And we also can manufacture by customers’ request.

STANDARD AND MATERIAL

Steel Grade	Content	Standards
Steel Grade	Content	JIS (Japan)	ASTM (U.S.A.)	BS (Britain)	DIN (Germany)
Carbon steel	0.15～0.25C	STB340,410 STPT370,410	A53-Gr.A,B A106-Gr.A,B A192 A210-Gr.AL		St45 St45.5 St45.8 C22
Carbon steel	0.25～0.35C	STPT480	A106-Gr.C A210-Gr.C		St55 St55.4
Mo steel	0.3～0.5Mo	STBA12,13 STPA12	T1,T1a P1	3059/243	15Mo3 16Mo5
Cr-Mo-V Steel	0.5Cr-0.5Mo-V			3604/660	14MoV63
Cr-Mo Steel	0.5Cr-0.5Mo	STBA20 STPA20	T2 P2
	ICr-0.5Mo	STBA22 STPA22	T12 P12		13CrMo44
	2.25Cr-IMo	STBA24 STPA24	T22 P22	3059/622 3604/622	10CrMo910
	9Cr-IMo-V-Nb	KA-STBA28 KA-STPA28	T91 P91		X10CrMoVNb91

SIZES AND TOLERANCE

	STANDARD		DIA				TOLERANCE
O.D	DIN17175		HOT		D ≤ 100mm		± 0.75%( 最小值± 0.5mm )
					D ＞ 100~ 320mm		± 0.9%
			COLD： D ≤ 120mm				± 0.6%( MIN± 0.25mm )
	ASME SA -192M 、 ASME SA -209M 、 ASME SA -210M 、 ASME SA -213M 、 ASME SA -335M 、 JIS G 3461		HOT	D ＜ 100mm			+0.4~ -0.8mm
				D ≥ 100~ ＜ 160mm			+0.4~ -1.2mm
				D ≥ 160~ ＜ 200mm			+0.4~ -1.8mm
				D ≥ 200 mm			+0.4~ -2.4mm
			COLD	D ＜ 25mm			± 0.10 mm
				D ≥ 25~ ＜ 40mm			± 0.15 mm
				D ≥ 40~ ＜ 50mm			± 0.20 mm
				D ≥ 50~ ＜ 60mm			± 0.25 mm
				D ≥ 60 ~ ＜ 80mm			± 0.30 mm
	ASME SA-106		D 10.3~ 48.3mm				± 0.40 mm
			D ＞ 48.3~ 114.3mm				± 0.79 mm
			D ＞ 114.3~ 219.1mm				+1.59~ -0.79mm
			D ＞ 219.1~ 457mm				+2.38~ -0.79mm
W.T	DIN17175	D ≤ 130mm	S ≤ 2Sn				+15%~-10%
			S ＞ 2Sn~4Sn				+12.5%~-10%
			S ＞ 4Sn				± 9%
		130 ＜ D ≤ 320mm	S ≤ 0.05D				+17.5%~-12.5%
			0.05D ＜ S ≤ 0.11D				± 12.5%
			S ＞ 0.11D				± 10%
	ASME SA -192M 、 ASME SA -209M 、 ASME SA -210M 、 ASME SA -213M 、 ASME SA -335M 、 JIS G 3461		HOT	S ≥ 2~ ＜ 2.4mm ， D ＜ 100			+40~0%
				S ≥ 2.4~ ＜ 3.8mm			+35~0%
				S ≥ 3.8~ ＜ 4.6mm			+33~0%
				S ≥ 4.6mm			+28~0%
			COLD	D ＜ 40		S ＜ 2mm	+0.4~ 0mm
						S ≥ 2mm	+20~0%
				D ≥ 40			+22~0%
	ASME SA-106						-12