
Kencotube is an approved manufacturer & Trader of SMO 254 Pipe Flanges, which are an austenitic stainless steel with high molybdenum content. The physical properties of Alloy 254 Flanges (UNS S31254) are essentially equivalent as described herein. Alloy 254 Pipe Flanges may offer a cost effective solution to Nickel and Titanium alloys in these environments. 254 SMO Flanges is designed with a combination of impact toughness resistance to chloride stress corrosion cracking, and pitting and crevice corrosion with strength that is twice that of the stainless steel 300 series. Coupled with Copper and Nickel this gives 254 SMO Pipe Flanges an excellent resistance to crevice and pitting corrosion, particularly in atmospheres comprising halide ions, such as chloride, fluoride and bromide solutions.
Stainless steel Grade 254 SMO Flanges is quite tough to machine due to the extremely high work hardening rate and lack of sulfur content; however using sharp tools, overpowered machine tools, positive feeds, good amount of lubrication, and slow speeds tend to provide good machining results. Due to its high nitrogen content, Stainless steel Grade SMO 254 Flanges has higher mechanical strength than most other austenitic stainless steels. Also known as 6 Mo Flanges, it is characterized by high ductility and impact strength as well as good weldability.6 Mo Pipe Flanges is generally used as anauxiliary in perilous components of superior constructions where SS 316L or SS 317L has botched by pitting, chloride SCC or crevice attack.
Specifications | ASTM A403 / B366, ASME SA403 / SB366 |
Standards | ANSI Flanges, ASME Flanges, DIN Flanges, EN Flanges, BS Flanges etc. |
Dimensions | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
Size | 1/2″ TO 36″ [10MM TO 900 MM] |
Class | 150#, 300#, 400#, 600#, 900#, 1500# & 2500#. |
Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
Flanges Products | Expander Flanges, Forged Flanges, Blind Flanges, Reducing Flanges, Orifice Flanges, Socket Weld Flanges, Slip On Flanges, Flat Flanges, Lapped Joint Flanges, High Hub Blinds Flanges, Nipo Flanges, Threaded Flanges, Square Flanges, Long Neck Weld Flanges, RTJ Flanges etc |
ASME/ANSI B 16.5 | Welding Neck Flange, Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange |
Pressure Class | 150, 300, 400, 600, 900, 1500, 2500 |
ASME/ANSI B 16.47 | Welding Neck Flange, Blind Flange [Series A & B] |
Pressure Class | 75, 150, 300, 400, 600, 900 |
ASME/ANSI B 16.36 | Welding Neck Flange, Slipon Flange, Threaded Flange |
Pressure Class | 300, 400, 600, 900, 1500, 2500 |
BS 4504 SEC 3.1 | Welding Neck Flange, Hubbed Slipon Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, Plate Flange,Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange |
Pressure Class | PN 2.5 TO PN 40 |
BS 4504[PART 1] | Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange |
Pressure Class | PN 2.5 TO PN 400 |
BS 1560 BOSS | Welding Neck Flange, Socket Welding Flange, Slip-On Flange, Blind Flange,Screwed Boss Flange, Lapped Flange |
Pressure Class | 150, 300, 400, 600, 900, 1500, 2500 |
DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
Pressure Class | PN 6 TO PN 100 |
STANDARD | WERKSTOFF NR. | UNS | AFNOR | EN | SIS | BS | GOST |
---|---|---|---|---|---|---|---|
SMO 254 | 1.4547 | S31254 | Z1 CNDU 20.18.06Az | X1CrNiMoCuN20-18-7 | 2378 | - | - |
Grade | C | Mn | Si | P | S | Cr | Ni | Mo | N | Cu |
---|---|---|---|---|---|---|---|---|---|---|
SMO 254 | ≤0.020 | ≤1.00 | ≤0.80 | ≤0.030 | ≤0.010 | 20 | 18 | 6.1 | 0.20 | 0.7 |
Density (lb / cu. in.) | Specific Gravity | Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) | Modulus of Elasticity Tension |
---|---|---|---|
0.287 | 7.8 | 0.119 | 29 |
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