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ASTM A213 Pickled Cold Rolled Annealed Tube Boiler / Heat Exchangers

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ASTM A213 Pickled Cold Rolled Annealed Tube Boiler / Heat Exchangers

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Brand Name :	Torich
Model Number :	ASTM A213
Certification :	ISO9001
Price :	$1200-$1500
Payment Terms :	L/C, D/A, D/P, T/T, Western Union
Supply Ability :	5000tons per year
Delivery Time :	30-40 days

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ASTM A213 Pickled Cold Rolled Annealed Tube Boiler / Heat Exchangers

ASTM A213 Boiler / Heat Exchangers Annealed Pickled Stainless Seamless Steel Tube

Product Name	Boiler steel tube
Material	304 316 T11 T22
Type	Seamelss
Standard	ASTM A213
Grade	304, 304L, 316L, 321, 347, 904L
Size	5-420 mm
Length	800mm - 11800 mm
Used	bolier, heat exchanger

Tolerance for seamless stainless boiler tube:

Production Method	Size(mm)		Tolerance
Hot Rolling(Extrusion)	OD	≤140	±1.25%
	OD	＞140	±1.0%
	WT	≤10	±12.5%
	WT	＞10	±15%
Cold Drawn(Cold Rolled)	OD	8~30	±0.20mm
		＞30~50	±0.30mm
		＞50	±0.8%
	WT	1.0~3	+12% -10%
	WT	＞3.0	±10

316 stainless steel.Composition

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
316	Min	-	-	-	0	-	16.0	2.00	10.0	-
316	Max	0.08	2.0	0.75	0.045	0.03	18.0	3.00	14.0	0.10
316L	Min	-	-	-	-	-	16.0	2.00	10.0	-
316L	Max	0.03	2.0	0.75	0.045	0.03	18.0	3.00	14.0	0.10
316H	Min	0.04	0.04	0	-	-	16.0	2.00	10.0	-
316H	max	0.10	0.10	0.75	0.045	0.03	18.0	3.00	14.0	-

Mechanical Properties

Grade	Tensile Str (MPa) min	Yield Str 0.2% Proof (MPa) min	Elong (% in 50 mm) min	Hardness
Grade	Tensile Str (MPa) min	Yield Str 0.2% Proof (MPa) min	Elong (% in 50 mm) min	Rockwell B (HR B) max	Brinell (HB) max
316	515	205	40	95	217
316L	485	170	40	95	217
316H	515	205	40	95	217

Grade	Density(kg/m3)	Elastic Modulus (GPa)	Mean Co-eff of Thermal Expansion (µm/m/°C)			Thermal Conductivity (W/m.K)		Specific Heat 0-100 °C (J/kg.K)	Elec Resistivity (nΩ.m)
Grade	Density(kg/m3)	Elastic Modulus (GPa)	0-100 °C	0-315 °C	0-538 °C	At 100 °C	At 500 °C	Specific Heat 0-100 °C (J/kg.K)	Elec Resistivity (nΩ.m)
316/L/H	8000	193	15.9	16.2	17.5	16.3	21.5	500	740

Mechanical property

Heat treatment of longitudinal mechanical properties of steel pipe shall according to the standard.

Material	Tensile strength MPa ≥	Yield Strength MPa ≥	Elongation % ≥
0Cr18Ni9	520	205	35
1Cr19Ni9	520	205	35
0Cr19Ni10	480	175	35
1Cr18Ni9Ti	550	205	40
0Cr18Ni12Mo2Ti	530	205	35
0Cr26Ni5Mo2	590	390	18
1Cr17	410	245	20
00Cr27Mo	410	245	20
1Cr25Ti	440	245	17

Hardness:

For the tubes which W.T. ≥2 mm, Rockwell hardness tests should be taken.

Tests of the seamless boiler tubes:

1.Bending Test:

The tubes should take the bending test when OD ≤22mm. The bending angle is 90 degrees, and the bending radius is 6 times the outer diameter of the steel tube.

2. Hydraulic test;

Eddy current testing, ultrasonic testing can be used instead of hydraulic tests. When eddy current testing, GB/T 7735-1995 Gr. A should be followed; when ultrasonic testing, GB/T 5777-1996 Gr. C8 should be followed.

3. Flattening test

4. Flanging test

5. Expand test

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