Duplex 2205 Hex NutASTM A276 · ASME B18.2.2 · Manufacturer, stockist & exporter, India
UNS S32205 / S31803 · W.Nr 1.4462
A Duplex 2205 hex nut is a standard hexagon nut, made from Duplex 2205 to ASTM A276 / A479. Standard hex nuts for general bolting, to ASME B18.2.2 or DIN 934 / ISO 4032.
- ASTM A276
- ASME B18.2.2
- EN 10204 3.1 / 3.2
- Export packing
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What is a Duplex 2205 Hex Nut?
- What it is
- A standard hexagon nut
- Material
- ASTM A276 / A479
- Dimensions
- ASME B18.2.2 · DIN 934
- Grade
- Duplex 2205 · UNS S32205
- Best at
- Strength with chloride resistance at a stainless-steel budget
Duplex 2205 Hex Nut Specification
| Product | Duplex 2205 Hex Nut |
|---|---|
| Material standard | ASTM A276 / A479 |
| Dimensional standard | ASME B18.2.2 · DIN 934 |
| Sizes | M10 – M64 · ½" – 4" (others on request) |
| Threads | UNC · UN-8 · metric coarse |
| Testing | PMI · dimensional · NDT and IGC on request |
| Documents | EN 10204 3.1 · 3.2 with third-party inspection |
When to Choose a Hex Nut
Standard hex nuts for general bolting, to ASME B18.2.2 or DIN 934 / ISO 4032.
- ASME B18.2.2 · DIN 934
- Metric and inch
- Matching material to bolt
Duplex 2205 Hex Nut Chemical Composition
| Element | Weight % |
|---|---|
| Chromium | 22.0 – 23.0 |
| Nickel | 4.5 – 6.5 |
| Molybdenum | 3.0 – 3.5 |
| Nitrogen | 0.14 – 0.20 |
| Carbon | 0.030 max |
| Manganese | 2.00 max |
| Silicon | 1.00 max |
| Phosphorus | 0.030 max |
Duplex 2205 Hex Nut Mechanical Properties
| Solution-annealed plate & sheet | Value |
|---|---|
| Tensile strength | 655 MPa · 95 ksi |
| Yield strength 0.2% | 450 MPa · 65 ksi |
| Elongation | 25% |
| Hardness | 293 HB max |
Full chemistry, properties and equivalents are on the Duplex 2205 grade page.
Standards on this page
Other Duplex 2205 fasteners
Duplex 2205 Hex Nuts for export
FOB / CIF · Nhava Sheva (JNPT), MumbaiDuplex 2205 Hex Nut — questions buyers ask
Can I use a standard hex nut on flange studs?
Flange bolting normally specifies heavy hex nuts; standard hex nuts are for general joints.
Which standard covers Duplex 2205 hex nuts?
The material is ASTM A276 / A479; dimensions follow ASME B18.2.2 · DIN 934. Always state both on your purchase order, with the edition if your project specifies one.
What decides the price of a Duplex 2205 hex nut?
The alloy price, the size and dimensions, quantity, and the testing and documents required. Send your list and we quote the same working day.
Can you supply Duplex 2205 hex nuts to NACE MR0175?
Yes. Duplex 2205 is listed in NACE MR0175 / ISO 15156-3 within its limits; state NACE compliance on the order and it is confirmed on the certificate.
What documents do you supply?
EN 10204 3.1 mill certificates as standard, 3.2 with third-party inspection on request, plus dimensional and PMI reports.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026