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Tensile Strengths of ASTM A204 Plates at Elevated Temperatures

August 28, 2020

The molybdenum alloy steel pressure vessel plates made in accordance with ASTM A204/ ASME SA-204 may be furnished in three grades: Grade A, Grade B, and Grade C. They are particularly intended for welded boilers and other pressure vessels. The Table U of ASME Boiler & Pressure Vessel Code Section II Part D has listed the tensile strength values of these grades for an extensive range of elevated temperatures. The values shall be only used for design calculation purpose.

Tensile Strengths for ASTM A204 Gr. A for Elevated Temperatures

Temp.Su
40448
100448
150448
200448
250448
300448
325448
350448
375448
400448
425448
450440
475422
500401
525376
*Su & Temp.: tensile strength, MPa, for metal temperature, °C, not exceeding. The minimum tensile strength for ASTM A204 Grade A at room temperature is 450 MPa.

Tensile Strengths for ASTM A204 Gr. B for Elevated Temperatures

Temp.Su
40483
100483
150483
200483
250483
300483
325483
350483
375483
400483
425483
450474
475455
500432
525404
*Su & Temp.: tensile strength, MPa, for metal temperature, °C, not exceeding. The minimum tensile strength for ASTM A204 Grade B at room temperature is 485 MPa.

Tensile Strengths for ASTM A204 Gr. C for Elevated Temperatures

Temp.Su
40517
100517
150517
200517
250517
300517
325517
350517
375517
400517
425517
450508
475487
500463
525433
*Su & Temp.: tensile strength, MPa, for metal temperature, °C, not exceeding. The minimum tensile strength for ASTM A204 Grade C at room temperature is 515 MPa.

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