Design, Butt Weld Ends

96
Pressure/Temperature Ratings
Cold
Imperial 500 int. Class (ASME B16.34 1996)
ASTM Body Material
Prod. Page
No. No.
Cast
R45 E
A216
WCB
97
ASTM Body Material
Prod. Page
No. No.
Cast
R45 E
A216
WCB
97
Pressure in lbf/sq. in. at Temp. ˚F (for intermediate ratings use linear interpolation)
-20˚
to 200 300 400 500 600 650 700 750 800 850 900 950 975 1000 1025 1050 1075
100˚ note ‘a’
Std. 1235 1125 1095 1058 1000 913 895 888 840 688 445 – – – – – – –
ASME Code
B16.34
Metric 500 int. Class (ASME B16.34 1996)
Spec. 1250 1250 1250 1250 1250 1188 1168 1158 1050 858 558 – – – – – – –
Pressure in Bar at Temp. ˚C (for intermediate ratings use linear interpolation)
-30˚
to 50 100 150 200 250 300 350 375 400 425 450 475 500 525 550 575 600
38˚ note ‘a’
Std. 85.1 83.5 77.3 75.4 73.1 69.7 64.6 61.6 60.7 57.5 48.0 33.4 – – – – – –
ASME Code
B16.34
Imperial 900 Class (ASME B16.34 1996)
Spec. 86.2 86.2 86.2 86.2 86.2 86.2 83.1 80.3 78.8 71.9 59.9 41.7 – – – – – –
Note ’a‘ – Permissible but not recommended for prolonged usage above 800˚F (425˚C).
Hot
Prod.
No.
ASTM Body Material
Cast
Page
No.
-20˚
to
100˚
200
Pressure in lbf/sq. in. at Temp. ˚F (for intermediate ratings use linear interpolation)
300 400 500 600 650 700 750 800 850 900 950 975 1000 1025 1050 1075
R61 L
A217
WC9
97
Std. 2250 2250 2185 2115 1995 1815 1765 1705 1595 1525 1460 1350 1130 955
Spec. 2250 2250 2225 2175 2160 2160 2145 2135 2070 2020 1930 1800 1415 1195
780
975
653
815
525
655
428
533
ASME Code
B16.34
Metric 900 Class (ASME B16.34 1996)
Prod.
No.
ASTM Body Material
Cast
Page
No.
-30˚
to
38˚
50 100
Pressure in Bar at Temp. ˚C (for intermediate ratings use linear interpolation)
150 200 250 300 350 375 400 425 450 475 500 525 550 575 600
R61 L
A217
WC9
97
Std. 155.1 155.1 154.6 150.6 146.2 139.0 128.6 120.7 116.5 109.8 105.4 101.4 95.1 83.4 64.9
Spec. 155.1 155.1 154.9 153.3 150.2 149.1 148.9 147.7 146.6 142.6 139.5 134.1 126.4 107.1 81.2
46.0
57.5
31.6
39.4
20.7
25.7
ASME Code
B16.34
Main component materials
Description Cold R.H.I.D. Hot R.H.I.D.
Body Steel ASTM A-216 Gr. WCB ASTM A-217 Gr.WC9
Bonnet Steel ASTM A-105 ASTM A-182-F-22
Cover ASTM A-516 Gr. 70 ASTM A-182-F-11
Pressure Seal Expanded Graphite Expanded Graphite
Distance Piece Steel ASTM A-182-F-6 ASTM A-182-F-6
Segment Ring Steel ASTM A-182-F-6 ASTM A-182-F-6
Pressure boundary materials to ASTM specifications. All other materials
to stated comparable U.S. specifications.