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P92 Steel: Allowable Stress, Tensile, Yield – Temperature Chart

The P92 steel, also known as 9Cr-2W, is designated as UNS K92460. It may be used for the construction of ASME BPVC Section I and Section III, Division 1 according Code Case 2179-8. The P92 steel can be furnished in different piping product forms in conformance with relative standards which are listed in below table:

Product FormStandard/ Grade
Flanges, Fittings, ValvesASTM A182 F92, ASME SA182 F92
Forged & Bored PipesASTM A369 FP92, ASME SA369 FP92
ForgingsASTM A336 F92
PlatesASTM A1017 Gr.92
Seamless PipesASTM A335 P92, ASME SA335 P92
Seamless TubesASTM A213 T92, ASME SA213 T92
*The material shall conform to one of the standard specifications listed above.

ASME SA335 P92 seamless pipes, 323.8x32 mm.

ASME SA335 P92 seamless pipes, 323.8×32 mm.

1. Allowable Stress – Temperature Chart for P92 Steel

Temperature °F *AMax. Allowable Stress, ksiTemperature °C *AMax. Allowable Stress, MPa
-20-10025.7-30-40177
20025.785177
30025.3100177
40024.5125177
50023.8150174
60023.2200169
65022.8250165
70022.4300161
75021.9325159
80021.4350156
85020.8375154
90020.1400151
95019.2425148
100018.3450144
105015.7*B475140
110012.0*B500135
115019.2*B525129
120018.3*B550123
--57599.5*B
--60077.0*B
--62556.5*B
--650*C38.3*B
*A: for metal temperature not exceeding.
*B: These stress values are obtained from time-dependent properties.
*C: The maximum use temperature of P92 steel is 649°C. The value at 650°C is provided for interpolation purposes only.

2. Tensile Strength – Temperature Chart for P92 Steel

Temperature °F *AMin. Tensile Strength, ksiTemperature °C *AMin. Tensile Strength, MPa
-20-10090.0-30-40621
20084.085621
30080.6100621
40077.9125621
50075.8150610
60073.7200592
65072.5250577
70071.2300563
75069.8325556
80068.0350547
85066.1375539
90063.8400528
95061.2425517
100058.1450504
105054.6475489
110050.6500472
115046.1525452
120040.9550429
--575404
--600376
--625344
--650309
*A: for metal temperature not exceeding.

3. Yield Strength – Temperature Chart for P92 Steel

Temperature °F *AMin. Yield Strength, ksiTemperature °C *AMin. Yield Strength, MPa
-20-10064.0-30-40441
20061.085428
30059.7100419
40058.9125415
50058.2150411
60057.3200406
65056.6250402
70055.7300397
75054.7325393
80053.4350389
85051.7375383
90049.7400377
95047.4425368
100044.5450359
105041.2475347
110037.4500333
115033.0525316
120028.0550297
--575276
--600251
--625223
--650191
*A: for metal temperature not exceeding.

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