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 Form	Standard/ Grade
Flanges, Fittings, Valves	ASTM A182 F92, ASME SA182 F92
Forged & Bored Pipes	ASTM A369 FP92, ASME SA369 FP92
Forgings	ASTM A336 F92
Plates	ASTM A1017 Gr.92
Seamless Pipes	ASTM A335 P92, ASME SA335 P92
Seamless Tubes	ASTM A213 T92, ASME SA213 T92

*The material shall conform to one of the standard specifications listed above.

1. Allowable Stress – Temperature Chart for P92 Steel

Temperature °F *A	Max. Allowable Stress, ksi	Temperature °C *A	Max. Allowable Stress, MPa
-20-100	25.7	-30-40	177
200	25.7	85	177
300	25.3	100	177
400	24.5	125	177
500	23.8	150	174
600	23.2	200	169
650	22.8	250	165
700	22.4	300	161
750	21.9	325	159
800	21.4	350	156
850	20.8	375	154
900	20.1	400	151
950	19.2	425	148
1000	18.3	450	144
1050	15.7*B	475	140
1100	12.0*B	500	135
1150	19.2*B	525	129
1200	18.3*B	550	123
-	-	575	99.5*B
-	-	600	77.0*B
-	-	625	56.5*B
-	-	650*C	38.3*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 *A	Min. Tensile Strength, ksi	Temperature °C *A	Min. Tensile Strength, MPa
-20-100	90.0	-30-40	621
200	84.0	85	621
300	80.6	100	621
400	77.9	125	621
500	75.8	150	610
600	73.7	200	592
650	72.5	250	577
700	71.2	300	563
750	69.8	325	556
800	68.0	350	547
850	66.1	375	539
900	63.8	400	528
950	61.2	425	517
1000	58.1	450	504
1050	54.6	475	489
1100	50.6	500	472
1150	46.1	525	452
1200	40.9	550	429
-	-	575	404
-	-	600	376
-	-	625	344
-	-	650	309

*A: for metal temperature not exceeding.

3. Yield Strength – Temperature Chart for P92 Steel

Temperature °F *A	Min. Yield Strength, ksi	Temperature °C *A	Min. Yield Strength, MPa
-20-100	64.0	-30-40	441
200	61.0	85	428
300	59.7	100	419
400	58.9	125	415
500	58.2	150	411
600	57.3	200	406
650	56.6	250	402
700	55.7	300	397
750	54.7	325	393
800	53.4	350	389
850	51.7	375	383
900	49.7	400	377
950	47.4	425	368
1000	44.5	450	359
1050	41.2	475	347
1100	37.4	500	333
1150	33.0	525	316
1200	28.0	550	297
-	-	575	276
-	-	600	251
-	-	625	223
-	-	650	191

*A: for metal temperature not exceeding.