SS Chains
What are SS Chains?
SS Chain, or Stainless Steel Chain, is a series of interconnected links made from high-grade stainless steel, offering excellent corrosion resistance, mechanical strength, and long-term durability. These chains are widely used in material handling, marine, lifting, architectural, and safety applications due to their ability to perform in harsh and corrosive environments.
Asiad Steel Industries is a leading manufacturer and exporter of SS Chains in a variety of configurations, including link chains, welded chains, lifting chains, and decorative chains.
Key Features
High
Strength
Durable
Construction
Precision
Finish
Wide
Compatibility
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Chain Size | 2 mm to 50 mm (custom sizes available) |
| Pressure Ratings | ANSI / ASME Class | Class 150, 300, 600, 900, 1500, 2500 |
| PN Ratings | – | PN6, PN10, PN16, PN25, PN40, PN64 |
| – | Chain Types | SS Link Chain, SS Stud Link Chain, SS Welded Chain |
| Material Options | Stainless Steel | SS 304, SS 304L, SS 316, SS 316L, SS 321 |
| Carbon Steel | ASTM A36, ASTM A500, ASTM A53 | |
| Alloy / Superalloy | Alloy Steel (A234 WP1, WP5, WP9, WP11, WP22, WP91), Inconel 600/625/825 | |
| Duplex & Super Duplex | Duplex 2205, Super Duplex 2507 | |
| Other Materials | Monel 400/K500, Nickel 200/201, Titanium (Grade 2, Grade 5) | |
| Standards & Certifications | ASME / ANSI | ASME B30.9 (Slings & Chains), ASME B16.5 (for chain fittings if applicable) |
| ASTM | ASTM A958, ASTM A475 | |
| European Standards | EN 818, EN 12385 | |
| Certifications | ISO 9001, PED 2014/68/EU, NACE MR0175, IBR Approved | |
| Design Features | Link Type | Round, Oval, Oblong, Stud Link |
| Surface Treatment | Plain, Galvanized, Polished, Passivated | |
| Tolerance | As per ASME / EN / ASTM standards | |
| Coating & Surface Finish | Anti-Corrosion Coating | Rust Preventive Oil, Hot-Dip Galvanized, Electroplated |
| Optional Coatings | Epoxy, PTFE, Polyurethane | |
| Surface Finish | Machined, Polished, Passivated | |
| Testing & Inspection | Load Testing | Proof load test, Breaking load test |
| Non-Destructive Testing | Magnetic Particle (MPI), Dye Penetrant (DPT) | |
| Destructive Testing | Tensile, Hardness, Impact |
Dimensions
| Chain Type | Link Shape | Link Diameter (mm) | Link Length (mm) | Chain Pitch (mm) | Working Load Limit (kg) | Weight per Meter (kg/m) | Standard |
|---|---|---|---|---|---|---|---|
| SS 304 Chain | Oval | 4 | 12 | 12 | 120 | 0.25 | EN 818-2 |
| SS 304 Chain | Oval | 6 | 18 | 18 | 250 | 0.55 | EN 818-2 |
| SS 304 Chain | Oval | 8 | 24 | 24 | 500 | 1.2 | EN 818-2 |
| SS 304 Chain | Round | 6 | 18 | 18 | 200 | 0.50 | EN 818-2 |
| SS 304 Chain | Round | 8 | 24 | 24 | 400 | 1.10 | EN 818-2 |
| SS 316 Chain | Oval | 4 | 12 | 12 | 140 | 0.28 | EN 818-2 |
| SS 316 Chain | Oval | 6 | 18 | 18 | 280 | 0.60 | EN 818-2 |
| SS 316 Chain | Oval | 8 | 24 | 24 | 550 | 1.25 | EN 818-2 |
| SS 316 Chain | Round | 6 | 18 | 18 | 220 | 0.52 | EN 818-2 |
| SS 316 Chain | Round | 8 | 24 | 24 | 450 | 1.15 | EN 818-2 |
| SS 321 Chain | Oval | 4 | 12 | 12 | 130 | 0.27 | EN 818-2 |
| SS 321 Chain | Oval | 6 | 18 | 18 | 260 | 0.58 | EN 818-2 |
| SS 321 Chain | Oval | 8 | 24 | 24 | 520 | 1.22 | EN 818-2 |
| SS 321 Chain | Round | 6 | 18 | 18 | 210 | 0.51 | EN 818-2 |
| SS 321 Chain | Round | 8 | 24 | 24 | 430 | 1.12 | EN 818-2 |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 450 – 850 | MPa (grade-dependent: SS 304, SS 316, SS 321) |
| Yield Strength | 180 – 500 | MPa |
| Hardness | 120 – 220 | HB (Brinell) |
| Elongation | ≥ 20 – 40 | % |
| Density | 7.8 – 8.0 | g/cm³ |
| Impact Toughness | ≥ 30 – 75 | J (Charpy, grade-dependent) |
| Modulus of Elasticity (E) | ~200 | GPa |
| Fatigue Strength | 200 – 450 | MPa |
| Corrosion Resistance | Excellent (SS 316 > SS 321 > SS 304) | – |
| Thermal Conductivity | 15 – 50 | W/m·K |
| Coefficient of Thermal Expansion | 10 – 17 ×10⁻⁶ | /°C |
| Yield Ratio (YS/UTS) | 0.40 – 0.65 | – |
| Poisson’s Ratio | 0.27 – 0.30 | – |
| Surface Finish | Polished, Passivated, Galvanized, Plain | – |
| Chain Link Type | Round, Oval, Stud Link | – |
| Welding Type | Seamless or Welded (depending on chain type) | – |
| Operating Temperature Range | -50 to 600 | °C (grade-dependent) |
| Load Rating | As per ISO 3183 / EN 818 Standards | – |
Chemical Composition
| Element | SS 304 (%) | SS 304L (%) | SS 316 (%) | SS 316L (%) |
|---|---|---|---|---|
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 8.0 – 10.5 | 8.0 – 12.0 | 10.0 – 14.0 | 10.0 – 14.0 |
| Carbon (C) | ≤ 0.08 | ≤ 0.03 | ≤ 0.08 | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
| Nitrogen (N) | ≤ 0.10 | ≤ 0.10 | ≤ 0.10 | ≤ 0.10 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
Applications of SS Chain
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
Which grade of stainless steel is best for marine chains?
Are SS chains suitable for lifting applications?
Can SS chains be customized in length and link style?
What’s the difference between long link and short link SS chains?
