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ASME SA209/SA209M

ASME SA209/SA209M T1, T1a, T1b is the standard applicable to seamless carbon-Molybdenum Alloy-Steel Boiler and Superheater Tubes.

ASME SA209/SA209M tubes shall be made by the seamless process and shall be either hot-finished or cold finished as specified.

ASME SA209/SA209M covers several grades of minimum- wall-thickness, seamless, carbon-molybdenum alloy-steel, boiler and superheater tubes.

ASME SA209/SA209M covers tubes 1⁄2 to 5 in. [12.7 to 127 mm] inclusive, in outside diameter and 0.035 to 0.500 in. [0.9 to 12.7 mm], inclusive, in minimum wall thickness.

Size:12.7 to 127 mm.

Wall Thickness: 0.9 to 12.7mm.

Shape: Round.

Length: Single random length/ Double random length or as customer’s actual request.

Grade: T1, T1a, T1b.

ASME SA209/SA209M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stain- less Steel Tubes.

Chemical Composition (%)

Grade	C	Si	Mn	P	S	Mo	Cr
T1	0.10-0.20	0.10-0.50	0.30-0.80	≤0.025	≤0.025	0.44-0.65	/
T1a	0.15-0.25	0.10-0.50	0.30-0.80	≤0.025	≤0.025	0.44-0.65	/
T1b	0.14max	0.10-0.50	0.30-0.80	≤0.025	≤0.025	0.44-0.65	/

Mechanical Properties

Tensile Requirements and Hardness

Mechanical Properties
Grade	Tensile	Yield	Elongation	Hardness
Grade	Strength (Mpa)	Strength (Mpa)	(%)	(HRB)
T1	≥380	≥205	≥30	≤80
T1a	≥365	≥195	≥30	≤81
T1b	≥415	≥220	≥30	≤77

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.

ASME SA210/SA210M

ASME SA192/SA192M

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