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Tensile & Yield Strength of ASTM A335 P11 at Elevated Temperatures

Designated as UNS K11597, ASTM A335 P11, is also known as 1.25Cr-0.5Mo. Generally, its minimum tensile strength and yield strength are respectively 415 MPa and 205 MPa at room temperatures. However, its tensile & yield strength values in different elevated temperatures should be considered in practice. These values shall be in accordance with Table U and Table Y-1 of ASME Boiler and Pressure Vessel Code Section II Part D.

ASTM A335 P11 seamless pipes in stock, 12" x 45 mm(w.t).

ASTM A335 P11 seamless pipes in stock, 12″ x 45 mm(w.t).

Tensile Strength of ASTM A335 P11 at Elevated Temperatures

Temperature, °C-30~40100150200250300325350
Tensile Strength, MPa414414414414414414414414
Temperature, °C375400425450475500525550
Tensile Strength, MPa414414414404390371349-
*The tabulated tensile strength values are for use in design calculations. The temperature shall be interpreted as “not exceeding”.

Yield Strength of ASTM A335 P11 at Elevated Temperatures

Temperatures, °C-30~4065100125150175200225250275
Yield Strength, MPa207197190185181178175172169166
Temperatures, °C300325350375400425450475500525
Yield Strength, MPa164161158155153149145142137132
*The tabulated yield strength values are for use in design calculations. The temperature shall be interpreted as “not exceeding”.

See the allowable stress of ASTM A335 P11 seamless pipes.

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