Stainless Steel 2205 2507 904L Duplex Hex metal Bolts for Industrial Use in Multiple Sizes with 1/4”-28 Sandblasted Finish

Hexagon socket bolts, also known as hexagon socket screws, are metal fasteners mainly used for component connections in fields such as construction, machinery, photovoltaic brackets, Bridges, and chemical equipment. According to performance, they are classified into common bolts (such as grade 4.8, Q235 material) and high-strength bolts (such as grade 8.8, 10.9, made of 45# steel or 20MnTiB material). Among them, high-strength bolts are further divided into friction type (with plate sliding as the ultimate state) and bearing type (with connection failure as the ultimate state) based on their force transmission characteristics.

Its materials include carbon steel, stainless steel (SUS304/316L), silicon bronze, etc. The surface treatments include hot-dip galvanizing, blue-white zinc electroplating and other processes to enhance the anti-corrosion performance. The thread specifications cover M4 to M100, with a length up to 500mm, and comply with international standards such as GB/T, DIN, and ISO. Anti-loosening measures include elastic washers, split pins and other methods. Ordinary bolts are suitable for temporary connections and can be reused, while high-strength bolts are mostly used for permanent connections.

2205 duplex stainless steel pipe has excellent mechanical properties and corrosion resistance, with good weldability. Widely used in:

• Oil and gas industry (over 850Km of pipelines)
• Marine engineering
• Chemical industry

2205 Duplex Pipe combines beneficial properties of ferrite and austenite with excellent resistance to chloride ion stress corrosion cracking. Contains 21% chromium, 2.5% molybdenum and 4.5% nickel-nitrogen alloys, offering twice the yield strength of austenitic stainless steels.