SMO 254 NUT:


DC is the latest manufacturer and exporter of SMO 254 Nuts and is recognized as an excellent grade across the industries such as oil and gas industries, chemical equipment, and more. We are a popular distributor across the global market and often fulfill all the needs of the customers.

SMO 254 is austenitic grade steel that has primary alloying elements as nitrogen and molybdenum. SMO 254 Nuts have high corrosion resistance along with the opposition from the aperture and pitting corrosion environment. SMO 254 grade also exhibits impact hardness up to twice times as stainless steel 316 grade. 254 SMO grade nuts have excellent workability, high tensile strength, and also good resistance to stress corrosion cracking. Although, 254 SMO grade shows cold-forming properties, and can also be used without re-annealing up to the temperature range of 120 Degree C. 254 SMO grade nuts lacks sulfur content, and also lacks machining because of high hardening rate and therefore requires machining tools, positive feeds. Moderate lubrication can offer a reasonable machining rate at a relatively slower pace. Forging and upsetting like hot operation can be performed for 254 SMO grade at the temperature range of 980 to 1150 Degree C. Heating below the temperature can result in loss of properties such as poor corrosion resistance and more.The types of standards that we offer from SMO 254 Fasteners are 254 SMO Bolts, 254 SMO Nuts, 254 SMO Hex bolts, 254 SMO threaded bolts, 254 SMO, and custom made standards for the specified purposes.

SMO 254 NUT Specification

            Specifications             DIN, ISO ,JIS ,GB, IS, BS, ASTM
           Standard            ASTM / ASME SB 160 / 164 / 425 / 166 / 446 / 574 / 472
           Size             M0.2 to M33 | 3/6" to 2" | Custom Sizes
           Length            3 mm to 200 mm | Custom Sizes
           Dimensions            DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
           Form            Hex, Threading, Square, Round as per Gauge Etc.
           Threads            Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or
            Threads available            UNF, BSW, BSF, METRIC, UNC, or as required
           ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
           Certification            Dual Certified As per ASTM & ASME Codes
           Test Certificate            As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD             2000 W2 Certified
           Raw materials            Source            JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc.
           Packing            IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request
            Surface Coating            Cadmium Coating
           Hot Dipped Galvanizing Coating
            Ptfe Coated Nickel Alloy 200 Fasteners
           Phosphate Coating
           Teflon Coating
           Xylon Coating
           Zinc Coating

Equivalent Grades

SMO 254 S31254 1.4547 Z1 CNDU 20.18.06Az X1CrNiMoCuN20-18-7 2378

Chemical Composition

SMO 254 Ni C Mo Mn Si Fe Cu S P Cr
SMO 254 17.518.5
0.02 max 66.5
1 max 0.8 max 0.5 – 1 0.01 max 0.03 max 19.520.5

Mechanical Properties

Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
8.0 g/cm3 1320-1390 ℃ 300 650 35 %