Expect the best.
Stainless Tubing A269Stainless Pipe A312 Chart
Stainless Tubing A269 Chart
 
Use for information purposes only. For design purposes, consult the applicable industry code.

ASTM A269 WELDED & BRIGHT ANNEALED STAINLESS
STEEL TUBING PRESSURE RATINGS (304L/316L)
O.D.

Nom.
Wall
(in)

Actual O.D.
(in)
Min.
O.D.
(in)
Max.
O.D.
(in)
Weight / Ft
(lb)
Burst Pressure
***
(PSI)
Working
Pressure
***
(PSI)
1/4"
.020
0.250
0.245
0.255
0.050
12,000
3,000
.028
0.250
0.245
0.255
0.066
16,800
4,200
.035
0.250
0.245
0.255
0.077
21,000
5,250
.049
0.250
0.245
0.255
0.101
29,400
7,350
5/16"
.020
0.313
0.308
0.318
0.064
9,585
2,396
.028
0.313
0.308
0.318
0.085
13,419
3,355
.035
0.313
0.308
0.318
0.099
16,773
4,193
.049
0.313
0.308
0.318
0.132
23,482
5,871
3/8"
.020
0.375
0.370
0.380
0.077
8,000
2,000
.028
0.375
0.370
0.380
0.103
11,200
2,800
.035
0.375
0.370
0.380
0.121
14,000
3,500
.049
0.375
0.370
0.380
0.163
19,600
4,900
.065
0.375
0.370
0.380
0.213
26,000
6,500
7/16"
.035
0.437
0.432
0.442
0.150
12,014
3,003
.065
0.437
0.432
0.442
0.256
22,311
5,578
1/2"
.020
0.500
0.495
0.505
0.104
6,000
1,500
.028
0.500
0.495
0.505
0.141
8,400
2,100
.035
0.500
0.495
0.505
0.173
10,500
2,625
.049
0.500
0.495
0.505
0.235
14,700
3,675
.065
0.500
0.495
0.505
0.299
19,500
4,875
.083
0.500
0.495
0.505
0.362
24,900
6,225
.095
0.500
0.495
0.505
0.402
28,500
7,125
.109
0.500
0.495
0.505
0.447
32,700
8,175
5/8"
.020
0.625
0.620
0.630
0.132
4,800
1,200
.028
0.625
0.620
0.630
0.178
6,720
1,680
.035
0.625
0.620
0.630
0.220
8,400
2,100
.042
0.625
0.623
0.628
0.268
10,080
2,520
.049
0.625
0.620
0.630
0.300
11,760
2,940
.065
0.625
0.620
0.630
0.384
15,600
3,900
.083
0.625
0.620
0.630
0.470
19,920
4,980
.095
0.625
0.620
0.630
0.524
22,800
5,700
.109
0.625
0.620
0.630
0.588
26,160
6,540
3/4"
.020
0.750
0.745
0.755
0.159
4,000
1,000
.025
0.750
0.745
0.755
0.207
5,000
1,250
.028
0.750
0.745
0.755
0.215
5,600
1,400
.035
0.750
0.745
0.755
0.266
7,000
1,750
.049
0.750
0.745
0.755
0.365
9,800
2,450
.065
0.750
0.745
0.755
0.47
13,000
3,250
.083
0.750
0.745
0.755
0.577
16,600
4,150
.095
0.750
0.745
0.755
0.646
19,000
4,750
.109
0.750
0.745
0.755
0.729
21,800
5,450
7/8"
.020
0.875
0.870
0.880
0.186
3,429
857
.025
0.875
0.870
0.880
0.242
4,286
1,071
.028
0.875
0.870
0.880
0.252
4,800
1,200
.035
0.875
0.870
0.880
0.313
6,000
1,500
.049
0.875
0.870
0.880
0.430
8,400
2,100
.065
0.875
0.870
0.880
0.555
11,143
2,786
.083
0.875
0.870
0.880
0.685
14,229
3,557
.095
0.875
0.870
0.880
0.768
16,286
4,071
.109
0.875
0.870
0.880
0.870
18,686
4,671
1"
.020
1.000
0.995
1.005
0.213
3,000
750
.028
1.000
0.995
1.005
0.289
4,200
1,050
.035
1.000
0.995
1.005
0.359
5,250
1,313
.049
1.000
0.995
1.005
0.496
7,350
1,838
.065
1.000
0.995
1.005
0.640
9,750
2,438
.083
1.000
0.995
1.005
0.792
12,450
3,113
.095
1.000
0.995
1.005
0.891
14,250
3,563
.109
1.000
0.995
1.005
1.011
16,350
4,088
1 1/4"
.020
1.250
1.245
1.255
0.374
3,360
840
 
.025
1.250
1.245
1.255
0.465
4,200
1,050
 
.028
1.250
1.245
1.255
0.643
5,880
1,470
 
.035
1.250
1.245
1.255
0.842
7,800
1,950
 
.049
1.250
1.245
1.255
1.059
9,960
2,490
 
.065
1.250
1.245
1.255
1.199
11,400
2,850
 
.083
1.250
1.245
1.255
1.359
13,080
3,270
1 1/2"
.020
1.500
1.495
1.505
0.450
2,800
700
 
.028
1.500
1.495
1.505
0.560
3,500
875
 
.035
1.500
1.495
1.505
0.777
4,900
1,225
 
.049
1.500
1.495
1.505
1.019
6,500
1,625
 
.065
1.500
1.495
1.505
1.285
8,300
2,075
 
.083
1.500
1.495
1.505
1.459
9,500
2,375
 
.095
1.500
1.495
1.505
1.657
10,900
2,725
 
.109
1.500
1.495
1.505
1.657
10,900
2,725
1 3/4"
.020
1.750
1.745
1.755
0.656
3,000
750
 
.025
1.750
1.745
1.755
0.911
4,200
1,050
 
.028
1.750
1.745
1.755
1.197
5,571
1,393
 
.035
1.750
1.745
1.755
1.512
7,114
1,779
 
.049
1.750
1.745
1.755
1.718
8,143
2,036
 
.065
1.750
1.745
1.755
1.955
9,343
2,336
 
.083
1.750
1.745
1.755
1.955
9,343
2,336
2"
.020
2.000
1.995
2.005
0.752
2,625
656
 
.028
2.000
1.995
2.005
1.045
3,675
919
 
.035
2.000
1.995
2.005
1.375
4,875
1,219
 
.049
2.000
1.995
2.005
1.739
6,225
1,556
 
.065
2.000
1.995
2.005
1.978
7,125
1,781
 
.083
2.000
1.995
2.005
2.253
8,175
2,044
 
.095
2.000
1.995
2.005
2.253
8,175
2,044
6mm
1mm
0.236
0.231
0.241
0.084
25,023
6,256
8mm
1mm
0.315
0.310
0.320
0.118
18,574
4,643
10mm
1mm
0.394
0.389
0.399
0.151
14,859
3,715
12mm
1mm
0.472
0.467
0.477
0.185
12,383
3,096
20mm
1mm
0.787
0.782
0.792
0.319
7,433
1,858


*** Theoretical burst and working pressure in psi at 100 degrees F

Pressure Formula: Internal Burst = 2 St/D Where P = Internal pressure psi
S = Tensile stress psi
t = Minimum wall thickness in inches
D = Nominal outside diameter in inches
Working pressure = 1/4 internal burst pressure

Tensile Requirements (304, 304L, 316, 316L):
A minimum of (2) tests per work order / heat number
Minimum yield strength = 30,000 psi
Minimum ultimate strength = 75,000 psi
Minimum elongation = 35%

Hardness Requirements (304, 304L, 316, 316L):
A minimum of (2) tests per work order / heat number
Maximum hardness* = 74 30T or 90 RB

* Not applicable to sizes < 0.250 I.D. unless specified