SA 209 T1A

SA 209 T1A
Seamless carbon molybdenum alloy steel boiler and superheater tubes.

ASTM A209 Grade T1a Alloy Steel Seamless Tubes are Carbon Steel Tubes with subsequent addition of chromium, molybdenum and sometimes vanadium are known as chrome moly Tubes.

ASTM Specification alloy steel Tubes are used for high temperature service applications. Seamless Alloy Steel Tubes according to ASTM A209 Grade T1a are reheated and furnished in full annlealed,isothermal annealed or normalised quenched and tempered condition.

ASTM A209 Grade T1a Alloy Steel Seamless Tubes have a typical chemistry with additions of 0.44-0.65 Molybdenum.

Bearing minimum tensile strength of 365 Mpa ASTM A209 Grade T1a Tubes have a minimum yield strength of 195 Mpa.

Chemical Properties:

Carbon: 0.15-0.25 Silicon: 0.10-0.50
Manganese: 0.30-0.80 Nickel: n/a
Potassium: 0.025 Chromium: n/a
Sulfur: 0.025 Molybdenum: 0.44-0.65

Mechanical Properties:

Tensile Strength:

ksi: 60

MPa: 414


ksi: 32

MPa: 221

Elongation in 2in. or 50mm, min. %: 30

Max. Hardness Rockwell B: 81

Equivalent Designation

DIN 17175 Grade 16Mo5 – – ASTM A209 GradeT1a ASME SA 209 Grade T1a

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