B165 N04400 Pipe MAWP Calculator

ASTM B165 N04400 (400 Monel) Pipe SMLS 67Ni-30Cu, <=5" O.D. annealed

Pressure Ratings > Pipe MAWP > B165 N04400

Material Properties

Specification

B165 N04400

Description

ASTM B165 N04400 (400 Monel) Pipe SMLS 67Ni-30Cu, <=5" O.D. annealed

Tensile Strength

70 ksi

Yield Strength

28 ksi

B16.5 Flange Group

Group 3.4 — Monel 400 (67Ni-30Cu)

Min Design Temperature

-325 °F

Y Coefficient

Ref 5 — Other ductile metals

Calculator Settings

Corrosion Allowance (in)

Mill Tolerance (%)

Units

Schedule Selection

STDXSXXS10S40S80S2030406080120140160

Temperature Selection

100 °F150 °F200 °F250 °F300 °F350 °F400 °F450 °F500 °F550 °F600 °F650 °F700 °F750 °F800 °F850 °F900 °F

Maximum Allowable Working Pressure (psig)

NPS	OD (in)	100 °F	200 °F	300 °F	400 °F	500 °F	600 °F	700 °F	800 °F
1/8	0.405	6,226	5,461	5,061	4,895	4,895	4,895	4,861	4,761
1/4	0.54	6,020	5,279	4,893	4,732	4,732	4,732	4,700	4,603
3/8	0.675	4,872	4,272	3,960	3,830	3,830	3,830	3,803	3,725
1/2	0.84	4,671	4,096	3,797	3,672	3,672	3,672	3,647	3,572
3/4	1.05	3,809	3,340	3,096	2,994	2,994	2,994	2,974	2,913
1	1.315	3,562	3,124	2,895	2,800	2,800	2,800	2,781	2,724
1 1/4	1.66	2,933	2,572	2,384	2,306	2,306	2,306	2,290	2,243
1 1/2	1.9	2,638	2,314	2,145	2,074	2,074	2,074	2,060	2,018
2	2.375	2,223	1,949	1,807	1,747	1,747	1,747	1,735	1,700
2 1/2	2.875	2,431	2,132	1,976	1,911	1,911	1,911	1,898	1,859
3	3.5	2,111	1,851	1,716	1,659	1,659	1,659	1,648	1,614
3.5	4	1,925	1,688	1,565	1,513	1,513	1,513	1,503	1,472
4	4.5	1,789	1,569	1,455	1,407	1,407	1,407	1,397	1,368
5	5.563	1,569	1,376	1,275	1,233	1,233	1,233	1,225	1,200
6	6.625	1,425	1,250	1,159	1,120	1,120	1,120	1,113	1,090
7	7.625	1,329	1,165	1,080	1,044	1,044	1,044	1,037	1,016
8	8.625	1,255	1,100	1,020	986	986	986	979	959
9	9.625	1,192	1,046	969	937	937	937	931	912
10	10.75	1,138	998	925	895	895	895	889	870
12	12.75	983	862	799	773	773	773	767	752
14	14	893	783	726	702	702	702	697	683
16	16	780	684	634	613	613	613	609	596
18	18	692	607	562	544	544	544	540	529
20	20	622	545	505	489	489	489	485	475
22	22	565	495	459	444	444	444	441	432
24	24	517	453	420	406	406	406	404	395
26	26	477	418	388	375	375	375	372	365
28	28	442	388	360	348	348	348	345	338
30	30	413	362	335	324	324	324	322	316
36	36	343	301	279	270	270	270	268	263
42	42	294	258	239	231	231	231	230	225
44	44	281	246	228	221	221	221	219	215
46	46	268	235	218	211	211	211	209	205
48	48	257	225	209	202	202	202	201	197

Custom Wall Thickness

NPS

Wall Thickness (in)

Allowable Stress vs Temperature

Matching Flange Group

Group 3.4 — Monel 400 (67Ni-30Cu)(B564/B127 N04400)

Disclaimer: This calculator is for guidance only. Results are based on ASME B31.3-2024 allowable stresses for seamless pipe (Ej=1.0, W=1.0). Always verify against the current edition of the standard. The engineer of record is responsible for all design decisions.