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Navgraha Steel & Engg Company is a manufacturing company offering Stainless Steel SS 904L Fasteners. These are low carbon content fasteners with excellent resistance to sensitization. These are widely used in numerous applications with a wide range of variety in different sizes, thicknesses and diameters, including different shapes. It is accessible in various components like Nuts, Bolts, Washers, Screws in different specifications, including numerous types and shapes such as threaded, hex, square, socket, cap, machine, anchor, and others. Custom-size Fasteners are also made available as per application need. Our fasteners are strongly resistant to reducing acids due to highly alloyed material. It shows a non-magnetic appearance with excellent welding properties.
SS 904L is a non-stabilized austenitic structure with low carbon introducing efficiency against inter-granular corrosion. Thus these Stainless Steel SS 904L Fasteners are resistant to sensitization faced in the welding process.
It is easily formed with excellent formability, that retains outstanding toughness. Thus mechanical properties of these fasteners are excellently effective. UNS NO8904 Fasteners offer higher resistance against corrosive effects in surroundings containing inorganic acids like warm phosphoric acid, and it also protects from most organic acids. High temperatures are applicable at a moderate level to maintain structural stability. Therefore it is solution treated at a higher level of temperatures followed by rapid cooling.
Stainless Steel SS 904L is:
• Austenitic Low Carbon Steel
• Non-Stabilized and Highly Alloyed
• Prevent Sensitization
• Excellent Pitting Resistance
Properties of SS 904L Fasteners:
• Superior mechanical and chemical characteristics
• Intermediate Temperature Range
• Brine Resistant
• Superior Acid Corrosion Resistance
Industries utilizing SS 904L Fasteners:
• Piping Systems
• Pollution Control
• Gas Scrubbing Plants and Oil Refinery
• Seawater Cooling Devices
• Electrostatic Precipitators
• Heat Exchangers
• Phosphoric Acid Processing
• Sulphuric Acid Processing
SS 904L Fasteners are highly resistant in stress and crevice corrosion situations, preventing cracking. In seawater surroundings, it is effectively impeded to chlorides and local attacks. It connects parts or components in the system. These Fasteners are specified as per application needs. These fasteners are long-lasting and excellently working for a long life span. Moreover, it faces stress corrosion at intermediate temperatures and proffers excellent heat resistance.
Standard | ASTM F593, F594, F1554 / ASME SF593, F594, F1554 |
Bolt / Screw Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
Nuts Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
Washers Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
Machine Screws Size | M1.6 – M12 |
Self Tapping Screw Size | No.2 – No. 14 |
Length | 3 mm to 200 mm |
Studs, Bolts, Threads | UNF, BSW, BSF, METRIC, UNC, or as required |
Threads Configuration | 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 |
Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
Test Certificate of Bolting | as per EN 10204 / 3.1 Manufacturer Test Certificate |
STANDARD | WERKSTOFF NR. | UNS | JIS | BS | KS | AFNOR | EN |
SS 904L | 1.4539 | N08904 | SUS 904L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
SS 904L | 0.020 max | 2.00 max | 1.00 max | 0.040 max | 0.030 max | 19.00 – 23.00 | 4.00 – 5.00 max | 23.00 – 28.00 | 1.00 – 2.00 |
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |