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, mm	P-No.	Group No.	Min. Tensile Strength, MPa	Min. Yield Strength, MPa	External Pressure Chart No.	Notes	Maximum Allowable Stress, MPa (Multiply by 1000 to Obtain kPa), for Metal Temperature, °C, Not Exceeding 40	Maximum Allowable Stress, MPa (Multiply by 1000 to Obtain kPa), for Metal Temperature, °C, Not Exceeding 65	Maximum Allowable Stress, MPa (Multiply by 1000 to Obtain kPa), for Metal Temperature, °C, Not Exceeding 100	Maximum Allowable Stress, MPa (Multiply by 1000 to Obtain kPa), for Metal Temperature, °C, Not Exceeding 125	Maximum Allowable Stress, MPa (Multiply by 1000 to Obtain kPa), for Metal Temperature, °C, Not Exceeding 150	Maximum Allowable Stress, MPa (Multiply by 1000 to Obtain kPa), for Metal Temperature, °C, Not Exceeding 175	Maximum Allowable Stress, MPa (Multiply by 1000 to Obtain kPa), for Metal Temperature, °C, Not Exceeding 200	Maximum Allowable Stress, MPa (Multiply by 1000 to Obtain kPa), for Metal Temperature, °C, Not Exceeding 225	Maximum Allowable Stress, MPa (Multiply by 1000 to Obtain kPa), for Metal Temperature, °C, Not Exceeding 250	Maximum Allowable Stress, MPa (Multiply by 1000 to Obtain kPa), for Metal Temperature, °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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Table 6D

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