ASTM A213 ASME SA213 T2 Seamless Steel Tubes-Boiler Tubes,Heat-Exchanger Tubes,Superheater Tubes,Supplier,Beite

ASTM A213 ASME SA213 T2 Seamless Steel Tubes

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SA213 t2asme SA213 T2 seamless steel tubes are mainly used for superheater and reheater system with working temperature lower than 540 ℃, and also for water wall tube in supercritical boiler

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ASME SA213 T2 Seamless Steel Tubes
SA213 T2 is a 1 / 2cr-1 / 2Mo type steel developed on the basis of 1 / 2Mo steel. It is a ferritic hot strength steel for boiler and superheater.

Standard: ASTM A213/ASME SA213
Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

SA213 T2 Seamless Steel Tubes,because the steel contains chromium, which can prevent the tendency of graphitization, after long-term use at 480-540 ℃, the mechanical properties and microstructure are stable enough, and the pipe processing and welding properties are good.

ASTM A213 T2 Seamless Steel Tubes Quick Details
Manufacture:Seamless process ,Hot-finished or Cold-finished
Wall thickness(WT): 0.9 mm——12.7 mm.
Outer diameter (OD): 12.7 mm——127 mm
Length: 6M or specified length as required.
Ends: Plain End, Beveled End, Treaded

Additional Info
Port of Shipment: Tianjin, China
Payment Terms:T / T, LC
Delivery: 7-15 days after payment
Surface: Tubes will be varnished (Outside only) to prevent rust.
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden) or as required

Chemical composition (%) of ASTM A213 ASME SA213 T2 Seamless Steel Tubes

Grade	Chemical composition
Grade	C	Si	Mn	P	S	Cr	Mo
SA213 T2	0.10-0.20	0.10-0.30	0.30-0.61	≤0.025	≤0.025	0.50-0.81	0.44-0.65

Mechanical Properties of ASTM A213 ASME SA213 T2 Seamless Steel Tubes

Grade	Mechanical properties at room temperature
Grade	Tensile strength	Yield strength	Elongation	HardnessHB（HRB）
SA-213 T2	≥ 415	≥205	≥ 30	≤163(85)

Metallographic structure
The delivery state of ASME SA213 T2 seamless steel tubes are normalizing and tempering, and the microstructure is ferrite + sorbite.

Heat Treatment:
ASTM SA213 T2 Seamless Alloy-Steel Boiler Tubes shall be reheated for heat treatment in accordance with the requirements of Table 1.

TABLE 1 Heat Treatment and Grain Size Requirements

Grade	UNS Number	Heat Treat Type	Austenitizing/ Solutioning Temperature, min or range ºF [ºC]	Cooling Media	Subcritical Annealing or Tempering Temperature, min or range ºF [ºC]
						ASTM Grain Size No.B
Ferritic Alloy Steels
T2	K11547	normalize and temper	…	…	1200 to 1350 [650 to 730]	…

B ASTM Grain Size No. listed, or coarser, unless otherwise indicated.

The dimensional tolerances of ASTM A213 Seamless Boiler Tubes
Tolerances of Wall Thickness

Wall Thickness, %
Outside Diameter in. [mm]	0.095 [2.4] and Under		Over 0.095 to 0.150[2.4 to 3.8], incl		Over 0.150 to 0.0180 [3.8 to 4.6], incl		Over 0.180 [4.6]
	Over	Under	Over	Under	Over	Under	Over	Under
Seamless, Hot-Finished Tubes
4 [100]and under	40	0	35	0	33	0	28	0
Over 4 [100]	....	....	35	0	33	0	28	0
Seamless, Cold-Finished Tubes
	Over			Under
1 1⁄2[38.1]and,under	20			0
Over 1 1 ⁄ 2 [38.1]	22			0

Tolerances of Outside Diameter

Pecified Outside Diameter,in. [mm]	Permitted Variations, in. [mm]
Pecified Outside Diameter,in. [mm]	Over	Under
Hot-Finished Seamless Tubes
4 [100] or under	1 ⁄ 64 [0.4]	1 ⁄ 32 [0.8]
Over 4 to 7 1 ⁄ 2 [100 to 200], incl	1 ⁄ 64 [0.4]	3 ⁄ 64 [1.2]
Over 7 1 ⁄ 2 to 9 [200 to 225], incl	1 ⁄ 64 [0.4]	1 ⁄ 16 [1.6]
Cold-Finished Seamless Tubes
Under 1 [25]	0.004 [0.1]	0.004 [0.11]
1 to 1 1 ⁄ 2 [25 to 40], incl	0.006 [0.15]	0.006 [0.15]
Over 1 1 ⁄ 2 to 2 [40 to 50], excl	0.008 [0.2]	0.008 [0.2]
2 to 2 1 ⁄ 2 [50 to 65], excl	0.010 [0.25]	0.010 [0.25]
2 1 ⁄ 2 to 3 [65 to 75], excl	0.012 [0.3]	0.012 [0.3]
3 to 4 [75 to 100], incl	0.015 [0.38]	0.015 [0.38]
Over 4 to 7 1 ⁄ 2 [100 to 200], incl	0.015 [0.38]	0.025 [0.64]
Over 7 1 ⁄ 2 to 9 [200 to 225], incl	0.015 [0.38]	0.045 [1.14]

Tolerances of Length

Method of Manufacture	Specified Outside Diameter, in.[mm]	Cut Length, in. [mm]
Method of Manufacture	Specified Outside Diameter, in.[mm]	Over	Under
Seamless, hot-finished	All sizes	3 ⁄ 16 [5]	0 [0]
Seamless, cold-finished	Under 2 [50.8]	1 ⁄ 8 [3]	0 [0]
	2 [50.8] or over	3 ⁄ 16 [5]	0 [0]
	2 [50.8] or over	3 ⁄ 16 [5]	0 [0]

Tests and Inspection
Tension Tests— One tension test shall be made on a specimen from one tube for lots of not more than 50 tubes. Tension tests shall be made on specimens from two tubes for lots of more than 50 tubes.
Flattening Test—One flattening test shall be made on specimens from each end ofone 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.
Hardness Tests—Brinell, Vickers, or Rockwell hardness tests shall be made on specimens from two tubes from each lot.

Surface Condition
ASTM A213 T2 Seamless Ferritic alloy cold-finished steel tubes shall be free of scale and suitable for inspection. A slight amount of oxidation is not considered scale.
ASTM A213 T2 Seamless Ferritic alloy hot-finished steel tubes shall be free of loose scale and suitable for inspection.
Any special finish requirement be subject to agreement between the supplier and the purchaser.

Oxidation resistance
SA213 T2 steel is mainly used in Superheater and reheater system with working temperature lower than 540 ℃, and its oxidation resistance is better than that of carbon steel and carbon manganese steel.

Welding performance
SA213 T2 steel has good welding performance, generally it can be annealed at 650 ~ 700 ℃ after welding without preheating. Heat 207 for manual welding rod and h12crmo / jgs-1cm for GTAW.

Tubes bending
ASME SA213 T2 seamless steel tubes are suitable for all kinds of bending processes. After cold bending, it needs to be de stressed; when the temperature of hot bending exceeds the tempering temperature, it should be re normalized and re ignited.

Application of ASME SA213 T2 seamless steel tubes
A213 T2 ,SA213 T2 seamless steel tubes are mainly used for superheater and reheater system with working temperature lower than 540 ℃, and also for water wall tube in supercritical boiler

Photos of ASTM A213 ASME SA213 T2 Seamless Steel Tubes