Related Resources: pressure-vessel

Pressure Vessel Temperature Ratings for Group 1.9 Materials

Structural Design and Analysis
Pressure Vessel Design and Engineering

Pressure Vessel Temperature Ratings for Group 1.9 Materials per. ASME B16.5 Pipes, Flanges and Flanged Fittings.

1 bar = 14.5038 psi

Designation
Forgings
Castings
Plates
1 1⁄4Cr–1⁄2Mo
 

A 217 Gr. WC6 (1), (3)
-
1 1⁄4Cr–1⁄2Mo - Si
A 182 Gr. F11 CL. 2 (1), (2)
-
A 387 Gr. 11 CL. 2 (2)

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Bars to PSI and PSI to bars pressure conversion calculator

 

All pressure. given in Bars.

Temp.,°C
150
300
400
600
900
1500
2500
−29 to 38
19.8
51.7
68.9
103.4
155.1
258.6
430.9
50
19.5
51.7
68.9
103.4
155.1
258.6
430.9
100
17.7
51.5
68.6
103.0
154.4
257.4
429.0
150
15.8
49.7
66.3
99.5
149.2
248.7
414.5
200
13.8
48.0
63.9
95.9
143.9
239.8
399.6
250
12.1
46.3
61.7
92.7
139.0
231.8
386.2
300
10.2
42.9
57.0
85.7
128.6
214.4
357.1
325
9.3
41.4
55.0
82.6
124.0
206.6
344.3
350
8.4
40.3
53.6
80.4
120.7
201.1
335.3
375
7.4
38.9
51.6
77.6
116.5
194.1
323.2
400
6.5
36.5
48.9
73.3
109.8
183.1
304.9
425
5.5
35.2
46.5
70.0
105.1
175.1
291.6
450
4.6
33.7
45.1
67.7
101.4
169.0
281.8
475
3.7
31.7
42.3
63.4
95.1
158.2
263.9
500
2.8
25.7
34.3
51.5
77.2
128.6
214.4
538
1.4
14.9
19.9
29.8
44.7
74.5
124.1
550
...
8.8
11.7
17.6
26.4
44.0
73.4
600
...
4.3
5.7
8.5
12.8
21.3
35.5
650
...
2.8
3.8
5.7
8.5
14.2
23.6

NOTES:

(1) Use normalized and tempered material only.
(2) Permissible, but not recommended for prolonged use above 590°C.
(3) Not to be used over 590°C.

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