ASTM SA213

ASTM SA213 is the standard of seamless ferritic and austenitic alloy steel boiler tube, super heater and heat exchanger pipes. Various requirements provide higher creep-rupture strength than normally achievable in-similar grades without these different requirements. The pipes shall be made by the seamless process and shall be either hot finished or cold finished, as specified. Grade TP347HFG shall be cold finished. Heat treatment shall be done separately and in addition to heating for hot forming.

ASTM SA213 Alloy Steel Pipe



The ferritic alloy and ferritic stainless steels shall be reheated. On the other hand, austenitic stainless steel tubes shall be furnished in the heat-treated condition. Alternatively, immediately after hot forming, while the temperature of the tubes is not less than the minimum solution temperature, tubes may be individually quenched in water or rapidly cooled by other means.
Tension test, hardness test, flattening test, and flaring test shall be done to each tube. Also, each tube shall be subjected to the nondestructive electric test or hydrostatic test.


Alloy Steel Pipe Specifications:

Standard Specifications for Seamless Ferritic and Austenitic Alloy-Steel for boilers, superheaters, and heat-exchangers
Applications:	For manufacturing wall panel,economizers, superheaters and steam pipelines for boilers
Size (mm):	O.D.: 28-168; W.T.: 2∼30; L: max 12000

 

Grade and Chemical Composition (%)

Grade	C	Mn	P≤	S≤	Si	Cr	Mo
T11	0.05-0.15	0.30-0.60	0.025	0.025	0.50-1.00	0.50-1.00	1.00-1.50
T12	0.05-0.15	0.30-0.61	0.025	0.025	≤0.50	0.80-1.25	0.44-0.65
T13	0.05-0.15	0.30-0.60	0.025	0.025	≤0.50	1.90-2.60	0.87-1.13

Mechanical Properties(MPa):

Grade	Tensile Point	Yield Point
T11	≥415	≥205
T12	≥415	≥220
T13	≥415	≥205