B622 N10665 Pipe MAWP Calculator

ASTM B622 N10665 (B2) Pipe SMLS, 65Ni-28Mo-2Fe, Sol. Ann.

Pressure Ratings > Pipe MAWP > B622 N10665

Material Properties

Specification

B622 N10665

Description

ASTM B622 N10665 (B2) Pipe SMLS, 65Ni-28Mo-2Fe, Sol. Ann.

Tensile Strength

110 ksi

Yield Strength

51 ksi

B16.5 Flange Group

Group 3.7 — Hastelloy B2 (65Ni-28Mo)

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 °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	11,321	11,321	11,321	11,321	11,321	11,321	11,321	11,321
1/4	0.54	10,945	10,945	10,945	10,945	10,945	10,945	10,945	10,945
3/8	0.675	8,857	8,857	8,857	8,857	8,857	8,857	8,857	8,857
1/2	0.84	8,492	8,492	8,492	8,492	8,492	8,492	8,492	8,492
3/4	1.05	6,925	6,925	6,925	6,925	6,925	6,925	6,925	6,925
1	1.315	6,476	6,476	6,476	6,476	6,476	6,476	6,476	6,476
1 1/4	1.66	5,333	5,333	5,333	5,333	5,333	5,333	5,333	5,333
1 1/2	1.9	4,797	4,797	4,797	4,797	4,797	4,797	4,797	4,797
2	2.375	4,042	4,042	4,042	4,042	4,042	4,042	4,042	4,042
2 1/2	2.875	4,420	4,420	4,420	4,420	4,420	4,420	4,420	4,420
3	3.5	3,838	3,838	3,838	3,838	3,838	3,838	3,838	3,838
3.5	4	3,500	3,500	3,500	3,500	3,500	3,500	3,500	3,500
4	4.5	3,254	3,254	3,254	3,254	3,254	3,254	3,254	3,254
5	5.563	2,852	2,852	2,852	2,852	2,852	2,852	2,852	2,852
6	6.625	2,591	2,591	2,591	2,591	2,591	2,591	2,591	2,591
7	7.625	2,416	2,416	2,416	2,416	2,416	2,416	2,416	2,416
8	8.625	2,281	2,281	2,281	2,281	2,281	2,281	2,281	2,281
9	9.625	2,168	2,168	2,168	2,168	2,168	2,168	2,168	2,168
10	10.75	2,069	2,069	2,069	2,069	2,069	2,069	2,069	2,069
12	12.75	1,787	1,787	1,787	1,787	1,787	1,787	1,787	1,787
14	14	1,624	1,624	1,624	1,624	1,624	1,624	1,624	1,624
16	16	1,418	1,418	1,418	1,418	1,418	1,418	1,418	1,418
18	18	1,258	1,258	1,258	1,258	1,258	1,258	1,258	1,258
20	20	1,130	1,130	1,130	1,130	1,130	1,130	1,130	1,130
22	22	1,026	1,026	1,026	1,026	1,026	1,026	1,026	1,026
24	24	940	940	940	940	940	940	940	940
26	26	867	867	867	867	867	867	867	867
28	28	804	804	804	804	804	804	804	804
30	30	750	750	750	750	750	750	750	750
36	36	624	624	624	624	624	624	624	624
42	42	535	535	535	535	535	535	535	535
44	44	510	510	510	510	510	510	510	510
46	46	488	488	488	488	488	488	488	488
48	48	467	467	467	467	467	467	467	467

Custom Wall Thickness

NPS

Wall Thickness (in)

Allowable Stress vs Temperature

Matching Flange Group

Group 3.7 — Hastelloy B2 (65Ni-28Mo)(B462/B333 N10665/N10675)

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.