ASTM A213 T11, T12, T22 Alloy Tubes

Yingke offers high quality of ASME SA213, ASTM A213 T11, T12, T22 heat exchanger seamless steel tube to customers across the globe and in China. In addition to supplying T11, T12 and T22 alloy steel tubes, Yingke also offers fabrication services that include cutting, bending, shearing, saw cutting and welding for all of kinds of seamless steel pipes and tubes. Our primary objective is to ensure that our customers receive A213 T11, T12 and T22 tubes at competitive prices, together with excellent service.
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Features of ASTM A213 T11, T12, T22 Alloy Steel Heat Exchanger Tubes

T11, T12, T22 seamless alloy tubes shall be delivered in fully killed, and either as hot-finished or cold finished product.
Heat treatment is carried out separately and in addition to hot forming.
Flattening Test – One flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot.
Flaring Test – One flaring test shall be made on specimens from each end of one finished tube, not the one used for the flattening test, from each lot.
Hydrostatic or Nondestructive Electric Test – Each tube shall be subjected to the nondestructive electric test or the hydrostatic test. The type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the purchase order.

Production Range for ASTM A213 T11, T12, T22 Alloy Steel Seamless Tubes

Product	ASTM A213 T11 T12 T22 Seamless Alloy Tubes
Specification	ASTM A213
Type	Seamless
Size	3.2 to 127 mm
Thickness	0.4 to 12.7mm
Length	Single Random Length, Double Random Length, or as customer’s requirement.
Grades	T11, T12, T22
Test Certificates	Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2

Chemical Composition of ASTM A213 T11, T12, T22 Alloy Steel Heat Exchanger Tubes

Chemical Components (%)
Grade	C	Mn	P	S	Si	Cr	Mo
T11	0.05-0.15	0.30-0.60	≤0.025	≤0.035	0.50-1.00	1.00-1.50	0.44-0.65
T12	0.05-0.15	0.30-0.61	≤0.025	≤0.035	0.5	0.80-1.25	0.44-0.65
T22	0.05-0.15	0.30-0.60	≤0.025	≤0.035	0.5	1.90-2.60	0.87-1.13

Mechanical Properties of ASTM A213 T11, T12, T22 Alloy Steel Heat Exchanger Tubes

Grade	Tensile	Yield	Elongation	Hardness
Strength (Mpa)	Strength (Mpa)	(%)	(HRB)
T11	≥415	≥220	≥30	≤85
T12	≥415	≥220	≥30	≤85
T22	≥415	≥220	≥30	≤85

Heat Treatment Requirements for ASTM A213 T11, T12, T22 Alloy Steel Heat Exchanger Tubes

Grade	UNS Number	Heat Treat Type	Subcritical Annealing or Tempering Temperature, Min or range °F [ °C ]
T11	K11597	full or isothermal anneal normalize and temper	1200 [650]
T12	K11562	full or isothermal anneal normalize and temper subcritical anneal	1200 to 1350
[650 to 730]
T22	K21590	full or isothermal anneal normalize and temper	1250 [675]

Additional information

Specification	ASTM A213 is the Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
Grades	T11, T12, T22
Type	Seamless
Size (OD)	3.2 to 127 mm
Thickness	0.4 to 12.7mm
Length	Single Random Length, Double Random Length, or as customer’s requirement
Certification	Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
Delivery Condition	Alloy Steel tubes shall be delivered in fully killed condition. The tubes shall be made by the seamless process and shall be either hot-finished or cold finished, as specified.