Tensile & Yield Strengths of ASTM A105 at Elevated Temperatures

August 31, 2019

The tensile strengths and yield strengths of ASTM A105/ ASME SA-105 forgings at elevated temperatures are provided in ASME Boiler and Pressure Vessel Code Section II Part D. These values, which are tabulated in below two tables, are provided for use in design calculations. Neither ASME Codes nor ASME material specifications require elevated temperature testing for tensile strengths and yield strengths of ASTM A105/ ASME SA-105 forgings for use in Code components.

Tensile strengths of A105/ SA-105 at elevated temperatures

Temp.	-20~100	200	300	400	500
S_u	70.0	70.0	70.0	70.0	70.0
Temp.	550	600	650	700	750
S_u	70.0	70.0	70.0	70.0	69.1
Temp.	800	850	900	950	1000
S_u	64.3	58.6	52.3	45.9	40.4

*Tensile strength, S_u, ksi, for metal temperature, °F, not exceeding.

Yield strengths of A105/ SA-105 at elevated temperatures

Temp.	S_y
-20~100	36.0
150	33.8
200	33.0
250	32.4
300	31.8
400	30.8
500	29.3
600	27.6
650	26.7
700	25.8
750	24.9
800	24.1
850	23.4
900	22.8
950	22.1
1000	21.4

*Yield strength, S_y, ksi, for metal temperature, °F, not exceeding.

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