SS Hex Bars
What is a SS Hex Bar?
Stainless Steel Hex Bars are six-sided solid bars known for their exceptional strength, corrosion resistance, and uniform dimensions. These bars are widely used in applications where ease of machining, fastener production, and a polished surface finish are required. The geometric hexagonal shape offers excellent torque strength and grip, making them ideal for threaded components and fittings.
Asiad Steel Industries is a trusted manufacturer and supplier of high-quality stainless steel hex bars in a variety of grades and sizes, crafted to meet the stringent requirements of domestic and international industries.
Key Features
High
Strength
Durable
Construction
Precision
Finish
Wide
Compatibility
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Across Flats (AF) | 3 mm to 150 mm (custom sizes available) |
| Length | Standard & Custom | 1 m, 3 m, 6 m (cut-to-length available) |
| Product Types | Hex Bars | Cold Drawn, Hot Rolled, Polished |
| Material Options | Stainless Steel Grades | 304, 304L, 316, 316L, 310, 321, 347, 410, 416, 420, 431, 17-4PH |
| Standards & Certifications | ASTM | ASTM A276, ASTM A479 |
| ASME / ANSI | ASME SA276, SA479 | |
| European Standards | EN 10088, EN 10272 | |
| Certifications | ISO 9001, PED 2014/68/EU, NACE MR0175 | |
| Design Features | Tolerance | h11, h12, as per ASTM/EN standards |
| Finish Options | Bright, Polished, Black, Pickled | |
| Machinability | Excellent – suitable for threading, drilling, CNC machining | |
| Mechanical Properties | Tensile Strength | 500 – 750 MPa (grade-dependent) |
| Yield Strength | 200 – 450 MPa | |
| Hardness | 120 – 220 HB (Brinell) | |
| Elongation | ≥ 20% (depending on grade) | |
| Coating & Surface Finish | Surface Protection | Passivation, Anti-rust coating (on request) |
| Testing & Inspection | Non-Destructive Testing | Ultrasonic (UT), Eddy Current, MPI |
| Destructive Testing | Tensile, Hardness, Impact | |
| Dimensional Checks | As per ASTM / EN standards |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 500 – 750 | MPa (grade-dependent: SS 304, 316, 410, etc.) |
| Yield Strength | 200 – 450 | MPa |
| Hardness | 120 – 220 | HB (Brinell) |
| Elongation | ≥ 20 – 40 | % (material-dependent) |
| Density | ~7.9 | g/cm³ |
| Impact Toughness | ≥ 100 | J (Charpy, grade-dependent) |
| Modulus of Elasticity (E) | ~190 – 200 | GPa |
| Fatigue Strength | 240 – 400 | MPa |
| Corrosion Resistance | Excellent (especially in SS 304, 316 grades) | – |
| Thermal Conductivity | 14 – 16 | W/m·K |
| Coefficient of Thermal Expansion | 16 – 17 ×10⁻⁶ | /°C |
| Yield Ratio (YS/UTS) | 0.40 – 0.60 | – |
| Poisson’s Ratio | 0.27 – 0.30 | – |
| Brinell Hardness Range | 120 – 220 | HB |
| Surface Finish | Bright, Black, Polished, Pickled | – |
| Machinability | Good (improved in free-cutting grades like 303) | – |
| Operating Temperature Range | -196 to +870 | °C (grade-dependent) |
| Standards | ASTM A276, ASTM A479, EN 10088 | – |
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 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| ASTM | A276 / A479 |
| EN | 1.4301 / 1.4404 |
| JIS | SUS 304 / SUS 316 |
| DIN | X5CrNi18-10 / X2CrNiMo17-12-2 |
| BS | 304S31 / 316S31 |
Applications of SS Hex Bar
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What sizes of stainless steel hex bars are typically available?
What are the common uses of hex bars in manufacturing?
Are custom lengths or tolerances available?
Which grade of stainless steel hex bar is best for seawater exposure?
