ASTM B622 UNS N08031 Tube,alloy 31,W.Nr. 1.4562 alloy seamless pipe and tube
N08031 stainless steel is a superaustenitic (highly alloyed) stainless steel formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. 1.4562 is the EN numeric designation for this material. N08031 is the UNS number. And Alloy 31 is the common industry name.
This material is well established: the Further Reading section below cites a number of published standards, and that list is not necessarily exhaustive.
It has a very high base cost among wrought superaustenitic stainless steels. In addition, it has a very high embodied energy and a moderately high ductility.
| 00Cr27Ni31Mo7CuN | NS1404 | alloy 31 | N08031 | 1.4562 | Nicrofer 3127hMo(VDM) |
ASTM B622 N08031 Chemical Composition
| C | Si | Mn | P | S | Cr | Cu | Mo | N | Ni | Fe | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alloy 31 | Min % | 26,0 | 1,0 | 6,0 | 0,15 | 30,0 | balance | |||||
| Max % | 0,015 | 0,3 | 2,0 | 0,20 | 0,010 | 28,0 | 1,4 | 7,0 | 0,25 | 32,0 | balance | |
| ASTM B626 (S08031) (alloy 31) | ||||||||||||
| 1.4562 | Min % | 26,00 | 1,00 | 6,00 | 0,15 | 30,00 | ||||||
| Max % | 0,015 | 0,30 | 2,00 | 0,02 | 0,10 | 28,00 | 1,40 | 7,00 | 0,25 | 32,00 | ||
| N 08031 | Min % | 26,0 | 1,0 | 6,0 | 0,15 | 30,0 | balance | |||||
| Max % | 0,015 | 0,3 | 2,00 | 0,,20 | 0,010 | 28,0 | 1,4 | 7,0 | 0,25 | 32,0 | balance | |
| ASTM B 626 (N08031) | ||||||||||||
| Pipe tube | Seamless welded nickel monel inconel incoloy hastelloy nimonic steel pipe tube |
| size | 1/8”~24” |
| thickness | SCH5S~XXS |
| Pipe end | PE BE |
| standard | ASTM/ASME SB161 SB163 SB167 SB407 SB444 SB423 SB622 SB668 SB677 SB829 |
| Nickel alloy tube
Seamless or welded |
Nickel Alloy 20 31 200 201 6xn; Monel 400 k500 404 400a 30c; Inconel 600 601 625 718 783 x750; Incoloy 800 800h 800ht 825 925 6mo 25-6mo 901 926 907; Hastelloy b b2 b3 c4 c22 c276 c2000 g-30 x C; Nimonic 80a 90 263
N06600, N06690, N06625, N08825, N08904 N08028, N08800, N06985, N04404, N04405 N10276, N02200, N02201 |
