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Chanathip Nickel Alloys & Plates is a leading manufacturer and exporter of Duplex Steel Screws in Bangkok, Thailand. Our range includes machine screws, socket head screws, countersunk screws, wood screws, and self-tapping screws in various sizes and finishes. Manufactured to DIN, ISO, and ASTM standards, our Duplex screws offer excellent corrosion resistance, high mechanical strength, and good dimensional accuracy. These screws are used for securing metal-to-metal or metal-to-structure components in corrosive and high-strength applications. Each product is tested for thread precision, hardness, and performance to ensure reliability in both industrial and structural assemblies.
Duplex Steel Screws consist of approximately 21–23% chromium, 4.5–6.5% nickel, 2.5–3.5% molybdenum, and nitrogen up to 0.20%. The duplex microstructure provides high strength and corrosion resistance. Mechanical properties include a tensile strength of 620–700 MPa, a yield strength of 450 MPa, an elongation of 25% or more, and hardness below 290 HB. These screws resist wear, galling, and stress corrosion cracking. Their balanced properties ensure durability under mechanical loads and in chemically aggressive environments, including coastal, industrial, and offshore settings.
| Standard | : | ASTM A193, A194 / SA193 / SA194 |
| Dimension | : | ASTM, DIN, BS, GB, IS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Bolts Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Screw Size | : | M02 to M33 | Custom Sizes |
| Heat Treatment | : | Annealing, Stress Relieving, Case Hardening, Quenching and Tempering. |
| Type | : | Hex Bolt/ Hex Screw, Square Head Bolt, U Bolt, Carriage Bolt, Eye Bolt, T Bolt/ J Bolt/ L bolt, Flange Bolt, Coach Screw etc. |
At Chanathip Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Screws in Bangkok, Thailand, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Thailand, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
