B161 N02201 Pipe MAWP Calculator

ASTM B161 N02201 (201) Pipe SMLS 99.0Ni-Low C, <=5" O.D. annealed

Pressure Ratings > Pipe MAWP > B161 N02201

Size Variant

Material Properties

Specification

B161 N02201

Description

ASTM B161 N02201 (201) Pipe SMLS 99.0Ni-Low C, <=5" O.D. annealed

Tensile Strength

50 ksi

Yield Strength

12 ksi

B16.5 Flange Group

Group 3.3 — Nickel 201 Low-C (99.0Ni)

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 °F950 °F1000 °F1050 °F1100 °F1150 °F1200 °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	2,664	2,564	2,497	2,497	2,497	2,497	2,464	2,397
1/4	0.54	2,575	2,479	2,414	2,414	2,414	2,414	2,382	2,318
3/8	0.675	2,084	2,006	1,954	1,954	1,954	1,954	1,928	1,876
1/2	0.84	1,998	1,923	1,873	1,873	1,873	1,873	1,848	1,798
3/4	1.05	1,629	1,568	1,528	1,528	1,528	1,528	1,507	1,466
1	1.315	1,524	1,467	1,429	1,429	1,429	1,429	1,410	1,371
1 1/4	1.66	1,255	1,208	1,176	1,176	1,176	1,176	1,161	1,129
1 1/2	1.9	1,129	1,086	1,058	1,058	1,058	1,058	1,044	1,016
2	2.375	951	915	892	892	892	892	880	856
2 1/2	2.875	1,040	1,001	975	975	975	975	962	936
3	3.5	903	869	847	847	847	847	835	813
3.5	4	824	793	772	772	772	772	762	741
4	4.5	766	737	718	718	718	718	708	689
5	5.563	671	646	629	629	629	629	621	604
6	6.625	610	587	572	572	572	572	564	549
7	7.625	568	547	533	533	533	533	526	512
8	8.625	537	517	503	503	503	503	496	483
9	9.625	510	491	478	478	478	478	472	459
10	10.75	487	469	456	456	456	456	450	438
12	12.75	420	405	394	394	394	394	389	378
14	14	382	368	358	358	358	358	354	344
16	16	334	321	313	313	313	313	309	300
18	18	296	285	277	277	277	277	274	266
20	20	266	256	249	249	249	249	246	239
22	22	242	232	226	226	226	226	223	217
24	24	221	213	207	207	207	207	205	199
26	26	204	196	191	191	191	191	189	184
28	28	189	182	177	177	177	177	175	170
30	30	177	170	166	166	166	166	163	159
36	36	147	141	138	138	138	138	136	132
42	42	126	121	118	118	118	118	116	113
44	44	120	116	113	113	113	113	111	108
46	46	115	110	108	108	108	108	106	103
48	48	110	106	103	103	103	103	102	99

Custom Wall Thickness

NPS

Wall Thickness (in)

Allowable Stress vs Temperature

Matching Flange Group

Group 3.3 — Nickel 201 Low-C (99.0Ni)(B162 N02201)

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.