Austenitic stainless steel alloys are often favored by the marine industry, particularly because the alloy is very ductile. And so smo 254 pipe manufacturers find it relatively easy to produce different shaped pipes including rectangle and square shapes. Being a very high end austenitic stainless steel, the SCH40 254 SMO Square Pipe was developed for use in the marine industry. The alloy was designed keeping in mind the behavior of seawater with metals.
And therefore the developed 254 SMO Stainless Steel Pipe offers a combination of various attractive characteristics. For instance, the alloy has superior impact toughness resistance to chloride ion stress induced corrosion cracking. In addition to this, the chemistry of Alloy 254 Rectangle Pipe permits resistance to other problems associated with marine corrosion including pitting and crevice corrosion. In terms of the strength of the alloy, the 254 SMO Seamless Pipe is almost two times stronger than the other austenitic stainless steel 300 series. For specific applications, the use of ASTM A312 UNS S31254 has been summarized to be a cost-effective substitute for alloys that contain high amounts of either nickel or titanium.
Since the weldability of the alloy is high, the 254 smo pipe suppliers recommend industries that are a part of the marine industry to use this grade as structural components. On account of its austenitic microstructure, the alloy for 1.4547 Hollow Pipe offers very good impact strength. This property of Sandvik 254 smo pipe is exhibited at both settings i.e. - the ambient temperature in addition to cryogenic temperatures.
| Size | ½” to 6” NB Sch 10s, 40s, & 80s, 160s |
| Wall Thickness | 0.1 - 60 mm |
| SS Seamless Pipe Length |
|
| Seamless SS Pipe Surface Finish | Cold Finish, Bright, Polished, Annealing, Pickling, or as per client requirements |
| Standard | JIS, AISI, ASME, ASTM, AMS, GB, DIN, EN, GOST |
| Manufacturing types | Seamless, Welded, ERW, EFW |
| Manufacturing Shapes | Round, Square, Rectangle, Box Section |
| Manufacturing Technology | Hot / Cold Formed |
| Other Grades | SS 446 |
| Inspection, Test Reports | EN 10204 3.1, Mill Test Certificates, PMI Test Reports, Chemical Reports, Mechanical Reports, NABL Approved Lab Reports, Visual Inspection Reports, Destructive and Non Destructive Test Reports, Third Party Inspection |
| Technique | Cold Rolled Hot Rolled |
OD mm |
Pipe WT mm |
in. |
Sch |
Kg/m |
|---|---|---|---|---|
13.72 |
1.65 |
1/4 |
10S |
0.50 |
13.72 |
2.24 |
1/4 |
40S |
0.64 |
13.72 |
3.02 |
1/4 |
80S |
0.81 |
17.15 |
1.65 |
3/8 |
10S |
0.64 |
17.15 |
2.31 |
3/8 |
40S |
0.86 |
17.15 |
3.20 |
3/8 |
80S |
1.12 |
21.34 |
2.11 |
1/2 |
10S |
1.02 |
21.34 |
2.77 |
1/2 |
40S |
1.29 |
21.34 |
3.73 |
1/2 |
80S |
1.65 |
26.67 |
2.11 |
3/4 |
10S |
1.30 |
26.67 |
2.87 |
3/4 |
40S |
1.71 |
26.67 |
3.91 |
3/4 |
80S |
2.23 |
33.40 |
2.77 |
1 |
10S |
2.13 |
33.40 |
3.38 |
1 |
40S |
2.54 |
33.40 |
4.55 |
1 |
80S |
3.29 |
33.40 |
6.352) |
1 |
160 |
4.30 |
42.16 |
2.77 |
1¼ |
10S |
2.73 |
42.16 |
3.56 |
1¼ |
40S |
3.44 |
42.16 |
4.85 |
1¼ |
80S |
4.53 |
42.16 |
6.352) |
1¼ |
160 |
5.69 |
48.26 |
2.77 |
1½ |
10S |
3.16 |
48.26 |
3.68 |
1½ |
40S |
4.11 |
48.26 |
5.08 |
1½ |
80S |
5.49 |
60.33 |
2.77 |
2 |
10S |
3.99 |
60.33 |
3.91 |
2 |
40S |
5.52 |
60.33 |
5.54 |
2 |
80S |
7.60 |
60.33 |
8.742) |
2 |
160 |
11.29 |
73.03 |
3.05 |
2½ |
10S |
5.35 |
73.03 |
5.16 |
2½ |
40S |
8.77 |
73.03 |
7.01 |
2½ |
80S |
11.59 |
88.90 |
3.05 |
3 |
10S |
6.56 |
88.90 |
5.49 |
3 |
40S |
11.47 |
88.90 |
7.62 |
3 |
80S |
15.51 |
88.90 |
11.132) |
3 |
160 |
21.67 |
101.60 |
3.05 |
3½ |
10S |
7.53 |
101.60 |
5.74 |
3½ |
40S |
13.78 |
101.60 |
8.08 |
3½ |
80S |
18.92 |
114.30 |
3.05 |
4 |
10S |
8.50 |
114.30 |
6.02 |
4 |
40S |
16.32 |
114.30 |
8.56 |
4 |
80S |
22.67 |
114.30 |
13.492) |
4 |
160 |
34.05 |
141.30 |
6.55 |
5 |
40S |
22.10 |
141.30 |
9.53 |
5 |
80S |
31.44 |
141.30 |
15.882) |
5 |
160 |
49.87 |
168.28 |
3.4 |
6 |
10S |
14.04 |
168.28 |
7.11 |
6 |
40S |
28.69 |
168.28 |
10.97 |
6 |
80S |
43.21 |
168.28 |
14.27 |
6 |
120 |
54.75 |
168.28 |
18.262) |
6 |
160 |
68.59 |
219.08 |
8.18 |
8 |
40S |
43.20 |
219.08 |
12.7 |
8 |
80S |
65.63 |
219.08 |
18.23 |
8 |
120 |
91.30 |
219.08 |
23.012) |
8 |
160 |
112.97 |
| SMO 254 | Ni | C | Mo | Mn | Si | Fe | Cu | S | P | Cr |
| 17.5 – 18.5 |
0.02 max | 6 – 6.5 |
1 max | 0.8 max | – | 0.5 – 1 | 0.01 max | 0.03 max | 19.5 – 20.5 |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.0 g/cm3 | 1320-1390 ℃ | 300 | 650 | 35 % |
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | SIS | GOST |
| SMO 254 | S31254 | 1.4547 | Z1 CNDU 20.18.06Az | X1CrNiMoCuN20-18-7 | – | 2378 | – |
1/8" IPS(.405"O. D.) |
3 1/2" IPS( 4.000"O. D.) |
|---|---|
SCH 40, 80 |
SCH 10, 40, 80, 160, XXH |
1/4" IPS(.540"O. D.) |
4" IPS(4.500"O. D.) |
SCH 10, 40, 80 |
SCH 10, 40, 80, 160, XXH |
3/8" IPS(.675"O. D.) |
5" IPS( 5.563"O. D.) |
SCH 10, 40, 80 |
SCH 10, 40, 80, 160, XXH |
1/2" IPS(.840"O. D.) |
6" IPS(6.625"O. D.) |
SCH 5, 10, 40, 80, 160, XXH |
SCH 5, 10, 40, 80, 120, 160, XXH |
3/4" IPS(1.050"O. D.) |
8 ” IPS(8.625"O. D.) |
SCH 10, 40, 80, 160, XXH |
SCH 5, 10, 40, 80, 120, 160, XXH |
1" IPS:(1.315′O. D.) |
10" IPS(10.750"O. D.) |
SCH 5, 10, 40, 80, 160, XXH |
SCH 10, 20, 40, 80 (.500), TRUE 80(.500) |
1-1/4" IPS(1.660"O. D.) |
12" IPS(12.750"O. D.) |
SCH 10, 40, 80, 160, XXH |
SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500) |
1-1/2" IPS(1.900"O. D.) |
14" IPS(14.000"O. D.) |
SCH 10, 40, 80, 160, XXH |
SCH10 (.188), SCH40 (.375) |
2" IPS(2.375"O. D.) |
16" IPS(16.000"O. D.) |
SCH 10, 40, 80, 160, XXH |
SCH10(.188), SCH40(.375) |
2 1/2" IPS(2.875"O. D.) |
18" IPS (18.000"O. D.) |
SCH 10, 40, 80, 160, XXH |
SCH-40 (.375) |
3" IPS( 3.500"O. D.) |
|
SCH 5, 10, 40, 80, 160, XXH |
