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Table 6D



Table 6D Section IV FOR INFORMATION ONLY — Maximum Allowable Stress Values, $ S $ , for Unlined Water Heater Materials

Line No. Nominal Composition Product Form Spec. No. Type/Grade Alloy Desig./ UNS No. Size/ Thickness, $ \mathrm{mm} $ P-No. Group No. Min. Tensile Strength, $ \mathrm{MPa} $ Min. Yield Strength, $ \mathrm{MPa} $ External Pressure Chart No. Notes Maximum Allowable Stress, $ \mathrm{MPa} $ (Multiply by 1000 to Obtain $ \mathrm{kPa} $ ), for Metal Temperature, $ \mathrm{°C} $ , Not Exceeding 40 Maximum Allowable Stress, $ \mathrm{MPa} $ (Multiply by 1000 to Obtain $ \mathrm{kPa} $ ), for Metal Temperature, $ \mathrm{°C} $ , Not Exceeding 65 Maximum Allowable Stress, $ \mathrm{MPa} $ (Multiply by 1000 to Obtain $ \mathrm{kPa} $ ), for Metal Temperature, $ \mathrm{°C} $ , Not Exceeding 100 Maximum Allowable Stress, $ \mathrm{MPa} $ (Multiply by 1000 to Obtain $ \mathrm{kPa} $ ), for Metal Temperature, $ \mathrm{°C} $ , Not Exceeding 125 Maximum Allowable Stress, $ \mathrm{MPa} $ (Multiply by 1000 to Obtain $ \mathrm{kPa} $ ), for Metal Temperature, $ \mathrm{°C} $ , Not Exceeding 150 Maximum Allowable Stress, $ \mathrm{MPa} $ (Multiply by 1000 to Obtain $ \mathrm{kPa} $ ), for Metal Temperature, $ \mathrm{°C} $ , Not Exceeding 175 Maximum Allowable Stress, $ \mathrm{MPa} $ (Multiply by 1000 to Obtain $ \mathrm{kPa} $ ), for Metal Temperature, $ \mathrm{°C} $ , Not Exceeding 200 Maximum Allowable Stress, $ \mathrm{MPa} $ (Multiply by 1000 to Obtain $ \mathrm{kPa} $ ), for Metal Temperature, $ \mathrm{°C} $ , Not Exceeding 225 Maximum Allowable Stress, $ \mathrm{MPa} $ (Multiply by 1000 to Obtain $ \mathrm{kPa} $ ), for Metal Temperature, $ \mathrm{°C} $ , Not Exceeding 250 Maximum Allowable Stress, $ \mathrm{MPa} $ (Multiply by 1000 to Obtain $ \mathrm{kPa} $ ), for Metal Temperature, $ \mathrm{°C} $ , Not Exceeding 275
1 18Cr–2Mo Plate SA–240 … S44400 t ≤ 10 7 2 415 275 CS–2 … 104 103 103 102 100 99.1 98.0 97.0 96.0 94.9
2 18Cr–2Mo Smls.tube SA–268 … S44400 t ≤ 10 7 2 415 275 CS–2 … 104 103 103 102 100 99.1 98.0 97.0 96.0 94.9
3 18Cr–2Mo Wld.tube SA–268 … S44400 t ≤ 10 7 2 415 275 CS–2 G1 88.0 87.9 87.8 86.5 85.2 84.3 83.3 82.5 81.6 80.6
4 18Cr–2Mo Bar SA–479 … S44400 t ≤ 10 7 2 415 … CS–2 … 104 103 103 102 100 99.1 98.0 97.0 96.0 94.9
5 18Cr–Ti Plate SA–240 439 S43035 t ≤ 10 7 2 415 205 CS–2 … 104 103 103 102 99.8 98.5 97.3 96.4 95.5 94.5
6 18Cr–Ti Smls.tube SA–268 TP439 S43035 t ≤ 10 7 2 415 205 CS–2 … 104 103 103 102 99.8 98.5 97.3 96.4 95.5 94.5
7 18Cr–Ti Bar SA–479 439 S43035 t ≤ 10 7 2 485 225 CS–2 … 121 121 117 114 112 109 108 106 104 94.5
8 29Cr–4Mo Smls.tube SA–268 29–4 S44700 … 10J 1 550 415 HA–6 G2 138 138 137 135 133 133 133 133 133 133
9 29Cr–4Mo Wld.tube SA–268 29–4 S44700 … 10J 1 550 415 HA–6 G1, G2 117 117 116 115 113 113 113 113 113 113
10 16Cr–12Ni–2Mo Forgings SA–182 F316L S31603 t ≤ 13 8 1 485 170 HA–4 … 115 105 96.7 91.3 87.3 83.3 80.7 78.7 76.0 74.0
11 16Cr–12Ni–2Mo Forgings SA–182 F316L S31603 t ≤ 13 8 1 485 170 HA–4 G3 121 119 117 114 110 109 107 106 103 99.9
12 16Cr–12Ni–2Mo Smls.tube SA–213 TP316L S31603 t ≤ 13 8 1 485 170 HA–4 … 115 105 96.7 91.3 87.3 83.3 80.7 78.7 76.0 74.0
13 16Cr–12Ni–2Mo Smls.tube SA–213 TP316L S31603 t ≤ 13 8 1 485 170 HA–4 G3 121 119 117 114 110 109 107 106 103 99.9
14 16Cr–12Ni–2Mo Plate SA–240 316L S31603 t ≤ 13 8 1 485 170 HA–4 … 115 105 96.7 91.3 87.3 83.3 80.7 78.7 76.0 74.0
15 16Cr–12Ni–2Mo Plate SA–240 316L S31603 t ≤ 13 8 1 485 170 HA–4 G3 121 119 117 114 110 109 107 106 103 99.9
16 16Cr–12Ni–2Mo Wld.tube SA–249 TP316L S31603 t ≤ 13 8 1 485 170 HA–4 G1 97.5 89.0 82.2 77.6 74.2 70.8 68.6 66.9 64.6 62.9
17 16Cr–12Ni–2Mo Wld.tube SA–249 TP316L S31603 t ≤ 13 8 1 485 170 HA–4 G1, G3 103 101 99.2 96.5 93.7 92.4 91.2 90.3 87.2 84.9
18 16Cr–12Ni–2Mo Smls.pipe SA–312 TP316L S31603 t ≤ 13 8 1 485 170 HA–4 … 115 105 96.7 91.3 87.3 83.3 80.7 78.7 76.0 74.0
19 16Cr–12Ni–2Mo Smls.pipe SA–312 TP316L S31603 t ≤ 13 8 1 485 170 HA–4 G3 121 119 117 114 110 109 107 106 103 99.9
20 16Cr–12Ni–2Mo Wld.pipe SA–312 TP316L S31603 t ≤ 13 8 1 485 170 HA–4 G1 97.5 89.0 82.2 77.6 74.2 70.8 68.6 66.9 64.6 62.9
21 16Cr–12Ni–2Mo Wld.pipe SA–312 TP316L S31603 t ≤ 13 8 1 485 170 HA–4 G1, G3 103 101 99.2 96.5 93.7 92.4 91.2 90.3 87.2 84.9
22 16Cr–12Ni–2Mo Bar SA–479 316L S31603 t ≤ 13 8 1 485 170 HA–4 … 115 105 96.7 91.3 87.3 83.3 80.7 78.7 76.0 74.0
23 16Cr–12Ni–2Mo Bar SA–479 316L S31603 t ≤ 13 8 1 485 170 HA–4 G3 121 119 117 114 110 109 107 106 103 99.9
24 16Cr–12Ni–2Mo Forgings SA–182 F316 S31600 t ≤ 13 8 1 515 205 HA–2 … 129 126 117 112 107 103 98.7 96.0 92.7 90.7
25 16Cr–12Ni–2Mo Forgings SA–182 F316 S31600 t ≤ 13 8 1 515 205 HA–2 G3 129 129 129 127 126 125 124 124 124 122
26 16Cr–12Ni–2Mo Smls.tube SA–213 TP316 S31600 t ≤ 13 8 1 515 205 HA–2 … 129 126 117 112 107 103 98.7 96.0 92.7 90.7
27 16Cr–12Ni–2Mo Smls.tube SA–213 TP316 S31600 t ≤ 13 8 1 515 205 HA–2 G3 129 129 129 127 126 125 124 124 124 122
28 16Cr–12Ni–2Mo Plate SA–240 316 S31600 t ≤ 13 8 1 515 205 HA–2 … 129 126 117 112 107 103 98.7 96.0 92.7 90.7
29 16Cr–12Ni–2Mo Plate SA–240 316 S31600 t ≤ 13 8 1 515 205 HA–2 G3 129 129 129 127 126 125 124 124 124 122
30 16Cr–12Ni–2Mo Wld.tube SA–249 TP316 S31600 t ≤ 13 8 1 515 205 HA–2 G1 110 107 99.7 95.2 91.2 87.3 83.9 81.6 78.8 77.1
31 16Cr–12Ni–2Mo Wld.tube SA–249 TP316 S31600 t ≤ 13 8 1 515 205 HA–2 G1, G3 110 110 110 108 107 106 105 105 105 104
32 16Cr–12Ni–2Mo Smls.pipe SA–312 TP316 S31600 t ≤ 13 8 1 515 205 HA–2 … 129 126 117 112 107 103 98.7 96.0 92.7 90.7
33 16Cr–12Ni–2Mo Smls.pipe SA–312 TP316 S31600 t ≤ 13 8 1 515 205 HA–2 G3 129 129 129 127 126 125 124 124 124 122
34 16Cr–12Ni–2Mo Wld.pipe SA–312 TP316 S31600 t ≤ 13 8 1 515 205 HA–2 G1 110 107 99.7 95.2 91.2 87.3 83.9 81.6 78.8 77.1
35 16Cr–12Ni–2Mo Wld.pipe SA–312 TP316 S31600 t ≤ 13 8 1 515 205 HA–2 G1, G3 110 110 110 108 107 106 105 105 105 104
36 16Cr–12Ni–2Mo Bar SA–479 316 S31600 t ≤ 13 8 1 515 205 HA–2 … 129 126 117 112 107 103 98.7 96.0 92.7 90.7
37 16Cr–12Ni–2Mo Bar SA–479 316 S31600 t ≤ 13 8 1 515 205 HA–2 G3 129 129 129 127 126 125 124 124 124 122
38 18Cr–8Ni Forgings SA–182 F304L S30403 t ≤ 13 8 1 485 170 HA–3 … 115 105 97.3 92.0 88.0 84.0 80.7 78.0 76.0 74.0
39 18Cr–8Ni Forgings SA–182 F304L S30403 t ≤ 13 8 1 485 170 HA–3 G3 121 117 113 109 105 103 102 101 99.5 98.9
40 18Cr–8Ni Smls.tube SA–213 TP304L S30403 t ≤ 13 8 1 485 170 HA–3 … 115 105 97.3 92.0 88.0 84.0 80.7 78.0 76.0 74.0
41 18Cr–8Ni Smls.tube SA–213 TP304L S30403 t ≤ 13 8 1 485 170 HA–3 G3 121 117 113 109 105 103 102 101 99.5 98.9
42 18Cr–8Ni Plate SA–240 304L S30403 t ≤ 13 8 1 485 170 HA–3 … 115 105 97.3 92.0 88.0 84.0 80.7 78.0 76.0 74.0
43 18Cr–8Ni Plate SA–240 304L S30403 t ≤ 13 8 1 485 170 HA–3 G3 121 117 113 109 105 103 102 101 99.5 98.9
44 18Cr–8Ni Wld.tube SA–249 TP304L S30403 t ≤ 13 8 1 485 170 HA–3 G1 97.5 89.0 82.7 78.2 74.8 71.4 68.6 66.3 64.6 62.9
45 18Cr–8Ni Wld.tube SA–249 TP304L S30403 t ≤ 13 8 1 485 170 HA–3 G1, G3 103 99.3 96.1 92.8 89.5 87.9 86.3 85.4 84.6 84.0
46 18Cr–8Ni Smls.pipe SA–312 TP304L S30403 t ≤ 13 8 1 485 170 HA–3 … 115 105 97.3 92.0 88.0 84.0 80.7 78.0 76.0 74.0
47 18Cr–8Ni Smls.pipe SA–312 TP304L S30403 t ≤ 13 8 1 485 170 HA–3 G3 121 117 113 109 105 103 102 101 99.5 98.9
48 18Cr–8Ni Wld.pipe SA–312 TP304L S30403 t ≤ 13 8 1 485 170 HA–3 G1 97.5 89.0 82.7 78.2 74.8 71.4 68.6 66.3 64.6 62.9
49 18Cr–8Ni Wld.pipe SA–312 TP304L S30403 t ≤ 13 8 1 485 170 HA–3 G1, G3 103 99.3 96.1 92.8 89.5 87.9 86.3 85.4 84.6 84.0
50 18Cr–8Ni Bar SA–479 304L S30403 t ≤ 13 8 1 485 170 HA–3 … 115 105 97.3 92.0 88.0 84.0 80.7 78.0 76.0 74.0
51 18Cr–8Ni Bar SA–479 304L S30403 t ≤ 13 8 1 485 170 HA–3 G3 121 117 113 109 105 103 102 101 99.5 98.9
52 18Cr–8Ni Forgings SA–182 F304 S30400 … 8 1 515 205 HA–1 … 129 123 113 107 103 98.7 96.0 92.7 90.0 88.0
53 18Cr–8Ni Forgings SA–182 F304 S30400 … 8 1 515 205 HA–1 G3 129 125 121 118 114 112 111 110 109 109
54 18Cr–8Ni Smls.tube SA–213 TP304 S30400 t ≤ 13 8 1 515 205 HA–1 … 129 123 113 107 103 98.7 96.0 92.7 90.0 88.0
55 18Cr–8Ni Smls.tube SA–213 TP304 S30400 t ≤ 13 8 1 515 205 HA–1 G3 129 125 121 118 114 112 111 110 109 109
56 18Cr–8Ni Plate SA–240 304 S30400 t ≤ 13 8 1 515 205 HA–1 … 129 123 113 107 103 98.7 96.0 92.7 90.0 88.0
57 18Cr–8Ni Plate SA–240 304 S30400 t ≤ 13 8 1 515 205 HA–1 G3 129 125 121 118 114 112 111 110 109 109
58 18Cr–8Ni Wld.tube SA–249 TP304 S30400 t ≤ 13 8 1 515 205 HA–1 G1 110 104 96.3 91.2 87.3 83.9 81.6 78.8 76.5 74.8
59 18Cr–8Ni Wld.tube SA–249 TP304 S30400 t ≤ 13 8 1 515 205 HA–1 G1, G3 110 106 103 100 96.9 95.4 93.9 93.4 92.9 92.9
60 18Cr–8Ni Smls.pipe SA–312 TP304 S30400 t ≤ 13 8 1 515 205 HA–1 … 129 123 113 107 103 98.7 96.0 92.7 90.0 88.0
61 18Cr–8Ni Smls.pipe SA–312 TP304 S30400 t ≤ 13 8 1 515 205 HA–1 G3 129 125 121 118 114 112 111 110 109 109
62 18Cr–8Ni Wld.pipe SA–312 TP304 S30400 t ≤ 13 8 1 515 205 HA–1 G1 110 104 96.3 91.2 87.3 83.9 81.6 78.8 76.5 74.8
63 18Cr–8Ni Wld.pipe SA–312 TP304 S30400 t ≤ 13 8 1 515 205 HA–1 G1, G3 110 106 103 100 96.9 95.4 93.9 93.4 92.9 92.9
64 18Cr–8Ni Bar SA–479 304 S30400 t ≤ 13 8 1 515 205 HA–1 … 129 123 113 107 103 98.7 96.0 92.7 90.0 88.0
65 18Cr–8Ni Bar SA–479 304 S30400 t ≤ 13 8 1 515 205 HA–1 G3 129 125 121 118 114 112 111 110 109 109
66 22Cr–5Ni–3Mo–N Plate SA–240 … S31803 … 10H 1 620 450 HA–5 … 155 155 155 152 150 147 144 143 141 140
67 22Cr–5Ni–3Mo–N Smls.tube SA–789 … S31803 … 10H 1 620 450 HA–5 … 155 155 155 152 150 147 144 143 141 140
68 22Cr–5Ni–3Mo–N Wld.tube SA–789 … S31803 … 10H 1 620 450 HA–5 G1 132 132 132 129 128 125 122 122 120 119
69 22Cr–5Ni–3Mo–N Smls.pipe SA–790 … S31803 … 10H 1 620 450 HA–5 … 155 155 155 152 150 147 144 143 141 140
70 22Cr–5Ni–3Mo–N Wld.pipe SA–790 … S31803 … 10H 1 620 450 HA–5 G1 132 132 132 129 128 125 122 122 120 119
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