heat exchanger tubes

May 6, 2015 By Cangzhou 3 125

Heat exchanger tubes

Specification:21.3-711*0.5-55
O.D:21.3mm-711mm
wall thickness:0.5-55mm
Length:2M-16M

Heat exchanger tubes enjoyed a high reputation throughout the world.It is widely exported to many countries.

Specification:21.3-711*0.5-55

O.D:21.3mm-711mm

wall thickness:0.5-55mm

Length:2M-16M

Standard:GB,ASTM,ASME,API,JIS,DIN
Materiall:20#,45#,20G,A53A/B,A106A/B/C,SA213T12/22,API5L

High, Medium and Low Pressure Seamless Steel Tubes Widely used in boiler industry, metallurgy, chemical engineering, energy industries, etc.

Material	Steel tube Classification	Chemical Composition (Smelt analysis)%
		C	Si	Min	P		S	Cr	Mo	V
		C	Si	Min	Max			Cr	Mo	V
St 35.8	1,111	<0.17	0.10-0.35	0.40-0.80	0.035	0.035		-	-	-
St 45.8	1,111	<0.21	0.10-0.35	0.40-1.20	0.035	0.035		-	-	-
15Mo3	1,111	0.12-0.20	0.10-0.35	0.40-0.80	0.035	0.035		-	0.25-0.35	-
13CrMo44	111	0.10-0.18	0.10-0.35	0.40-0.70	0.035	0.035		0.70-1.10	0.45-0.65	-
10CrMo910	111	0.08-0.15	<0.50	0.40-0.70	0.035	0.035		2.00-2.50	0.90-1.20	-
10	Medium-Low Pres-sure Boiler Tube	0.07-0.14	0.17-0.37	0.35-0.65	0.035	0.035		0.15	-	-
20	Medium-Low Pres-sure Boiler Tube	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035		0.25	-	-
20G	High Pressure Boiler tube	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035		0.30	-	-

Mechanical Properties					Applicable standard
Tensile Strength (Mpa)	The Yield point for following Tubes with vortex wall thickness(mp)		Percentage dongcon5% Lon5Do5 (Min)	Impact Toughness value (DVM-Sample) DVM J (Min)
	<16	>16
	(Mpa Min)
300-480	23%	225	25	48	DN 17575+B6
410-500	23%	245	21	41
450-600	27%	270	22	48
440-500	29%	290	22	48
450-600	28%	200	20	48
300-490	19%	138	24	-	GB3087
350-586	24%	226	20	-	GB3087
412-549	24%	245	24	39	GB5310

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