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Corrugated Metal Hose

Temperature Correction Factors for Elevated Temperature Applications

As the service temperature increases, the maximum pressure a hose assembly can withstand
decreases. The material from which the hose is made and the method of fitting attachment (mechanical,
soldered, welded, silver brazed) determines the maximum pressure at which an assembly can be used.

Temperature (° F) Material
Bronze Steel Monel Stainless
Steel
Room
Temperature
1.00 1.00 1.00 1.00
150 .92 .99 .98 .97
200 .89 .97 .94 .94
250 .86 .96 .92 .92
300 .83 .93 .90 .88
350 .81 .91 .89 .86
400 .78 .87 .88 .83
450 .75 .86 .87 .81
500   .81 .86 .78
600   .74 .84 .74
700   .66 .82 .70
800   .52 .75 .66
900   .50 .70 .62
1000     .65 .60
1100       .58
1200       .55
1300       .50
1400       .44
1500       .40

Multiply the listed correction factor by the hose's room temperature rating to
determine elevated temperature maximum working pressure.

Saturated
Steam
Temp
(° F)
- 0
- 20
29.74 32
29.67 40
29.40 60
28.89 80
27.99 100
26.46 120
24.04 140
20.27 160
14.63 180
6.46 200
0 212
5 227
10 238
Saturated
Steam
Temp
(° F)
15 250
20 259
25 267
30 274
35 281
40 287
45 292
50 298
55 303
60 307
65 312
70 316
75 320
80 324
85 328
Saturated
Steam
Temp
(° F)
90 331
95 335
100 338
105 341
110 344
115 347
120 350
125 353
130 356
150 366
175 377
200 388
225 397
250 406
275 414
Saturated
Steam
Temp
(° F)
300 422
350 436
400 448
450 460
500 470
600 489
700 505
800 520
900 520
1000 546
1250 574
1500 606
2500 669
3000 696
3191 705
Light green coloration of table cells indicate "Vacuum HG"

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Reference 
General Conversion Factors 

   

Precision Hose, Inc. 
2200 Centre Park Court 
Stone Mountain, GA 30087 

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