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Silver Tubes is one of the renowned exporter and trader of SMO 254 Fasteners, whichis far more resistant to formic acid than conventional stainless steels and also more resistant. In nitric acid Alloy 254 Fasteners performs also very well, whereas it can be machined using conventional machining methods which are used for iron-based alloys. The high alloying contents of chromium and nickel give UNS S31254 Fasteners considerably better resistance to sodium hydroxide than standard stainless steels. At moderate temperatures and concentrations, 6MO Fasteners are a suitable alternative to pure nickel, which may be attacked by erosion corrosion. At boiling temperatures, 254 SMO Fasteners is resistant to lower acidconcentrations. SMO 254 Nuts has high strength and toughness in the temperature range cryogenic to 1093 Degree C which is derived largely from the solid solution effects of the refractory metal, columbium and molybdenum, in a nickel-chromium matrix.
SMO 254 Bolts has good mechanical properties that form moderately to high temperatures. SMO 254 Washers can be formed using all conventional techniques, which is being cold worked by using standard tooling. No obvious difference in corrosion of SMO 254 Screws above and below the melt line. Our support of the power & process industry is reflected in the specialty grades of Alloy 254 Nuts that we inventory to support outage & maintenance requirements.We also provide these fasteners at reasonable price to our clients.
Dimensions | DIN 931/933/912/975/976/2510, ISO 4014/4017/4762, ASME B18.3/B18.2.1/B16.5/B18.2.3.6M |
Specifications | ASTM A479, A193, A194 / ASME SA193, SA194 |
Standards | DIN, ASTM, BS and all International Standards |
Size | M02 to M160 |
Production | Cold Forged, Hot Forged |
Length | 3mm to 200mm |
STANDARD | UNS | WERKSTOFF NR. | EN |
254 SMO® | S31254 | 1.4547 | X1CrNiMoCuN20-18-7 |
Grade | C | Ni | Si | N | S | Mn | P | Cr | Ce | Fe | |
SS 254 SMO | min. | - | 17.5 | - | 0.18 | - | - | - | 19.5 | 0.03 | Balance |
max. | 0.02 | 18.5 | 0.08 | 0.22 | 0.01 | 1.00 | 0.03 | 20.5 | 0.08 |
Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
254 SMO | 650 | 35 | 300 | 50 | 270 |
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