TOBO STEEL GROUP CHINA
TOBO GROUP TOBO International Trading(Shanghia)Co.,Ltd Tianda Oil Pipe Co., Ltd TOBO Pipeline Equipment Co.,Ltd TPCO & TISCO Pipe(Tianjin)Co.,Ltd.
Add to Cart
ASTM A182 F44 S31254 254SMO 1.4547 Stainless Steel Pipe End Cap ASME B16.9
44 EN 1.4547 UNS S31254 254SMO
Brief introduction of the material
254SOM UNS S31254 UNS J93254 EN 1.4547 F44 BMLCuN ACI CK3MCuN
A. 254SOM UNS S31254 UNS J93254 EN 1.4547 F44 BMLCuN ACI CK3MCuN Overview
General Characteristics
Outokumpu 254 SMO is an austenitic stainless steel designed for maximum resistance to pitting and crevice corrosion. With high levels of chromium,
molybdenum, and nitrogen, 254 SMO is especially suited for high-chloride environments such as brackish water, seawater, pulp mill bleach plants, and other high-chloride process streams.
In new construction, 254 SMO has been found in many cases to be a technically adequate and much less costly substitute for nickel-base alloys and titanium. 254 SMO is substantially stronger than the common austenitic grades, and it is also characterized by high ductility and impact strength. 254 SMO is readily fabricated and welded.
Design Features
High resistance to pitting and crevice corrosion
Very high resistance to chloride stress corrosion cracking
50% stronger than 300-series austenitic stainless steels
Excellent impact toughness
Excellent workability and weldability
B.Chemical Composition, %
Composition, wt. Pct.
| Element | Wrought Products | Castings |
| Carbon | 0.020 max | 0.025 |
| Chromium | 19.5-20.5 | 19.5-20.5 |
| Nickel | 17.5-18.5 | 17.5-19.5 |
| Molybdenum | 6.0-6.5 | 6.0-7.0 |
| Nitrogen | 0.18-0.22 | 0.180-0.240 |
| Copper | 0.50-1.00 | 0.50-1.00 |
| Sulfur | 0.010 max | 0.010 max |
| Phosphorus | 0.030 max | 0.045 max |
| Silicon | 0.80 max | 1.00 max |
| Manganese | 1.00 max | 1.20 max |
| Iron | Balance | Balance |
C. Mechanical Properties
Mechanical Properties at Room Temperature
| Property/Product Form | Wrought Products | Castings |
| Tensile Strength, ksi | - | 80 min |
| Sheet and Strip | 100 min | NA |
| Plate | 95 min | NA |
| 0.2% Offset Yield Strength, ksi | 45 min | 38 min |
| Elongation in 2 in, % | 35 min | 35 min |
| Brinell Hardness | 210 | - |
| Charpy V-Notch Impact Strenght, ft-lb | 71 | - |
NA= Not Applicable
D.Available Forms of 254SOM UNS S31254 UNS J93254 EN 1.4547 F44 BMLCuN ACI CK3MCuN
Product Forms Available
Plate
Sheet and KBR Wide Sheet
Billet and Bar
Pipe, Tubing, and Fittings
Castings
Applications
Seawater handling equipment
Pulp mill bleach systems
Tall oil distillation columns and equipment
Chemical processing equipment
Food processing equipment
Desalination equipment
Flue gas desulfurization scrubbers
Oil and Gas production equipment
Specifications
UNS S31254 (wrought products)
UNS J93254 (cast products)
F 44 (forged piping components)
BMLCuN (bolting)
ACI CK3MCuN
| Nominal Diameter | Outside Diameter at Bevel | Back to End | ||||||||||
|
| Series A | Series B | E | T | E1 | |||||||
| DN | NPS |
|
|
|
|
| ||||||
| 15 | 1/2 | 21.3 | 18 | 25 | 4.57 | 25 | ||||||
| 25 | 1 | 33.7 | 32 | 38 | 4.57 | 38 | ||||||
| 40 | 1.1/2 | 48.3 | 45 | 38 | 5.08 | 38 | ||||||
| 50 | 2 | 60.3 | 57 | 38 | 5.59 | 44 | ||||||
| 65 | 2.1/2 | 76.1(73) | 76 | 38 | 7.11 | 51 | ||||||
| 80 | 3 | 88.9 | 89 | 51 | 7.62 | 64 | ||||||
| 100 | 4 | 114.3 | 108 | 64 | 8.64 | 76 | ||||||
| 125 | 5 | 139.7 | 133 | 76 | 9.65 | 89 | ||||||
| 150 | 6 | 168.3 | 159 | 89 | 10.92 | 102 | ||||||
| 200 | 8 | 219.1 | 219 | 102 | 12.70 | 127 | ||||||
| 300 | 12 | 323.9 | 325 | 152 | 12.70 | 178 | ||||||
| 350 | 14 | 355.6 | 377 | 165 | 12.70 | 191 | ||||||
| 400 | 16 | 406.4 | 426 | 178 | 12.70 | 203 | ||||||
| 450 | 18 | 457.2 | 478 | 203 | 12.70 | 229 | ||||||
| 500 | 20 | 508.0 | 529 | 229 | 12.70 | 254 | ||||||
| 550 | 22 | 559 | - | 254 | 12.70 | 254 | ||||||
| 600 | 24 | 610 | 630 | 267 | 12.70 | 305 | ||||||
| When T is less the dimension in parentheses, the height E is available. Otherwise E1 is available. Above dimensions acc.to GB/T12459,GB/T13401,ASME B16.9,SH3408,SH3409,HG/T21635,HG/T21631,SY/T05010 | ||||||||||||