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Product Overview
Nimonic 105 threaded rods are high-strength nickel-chromium-cobalt alloy fasteners manufactured from UNS N13021 bar stock, conforming to ASTM B637. Designed for extreme temperature service, these rods utilize precipitation hardening via titanium and aluminum additions, achieving exceptional tensile and creep-rupture strength up to 1050°C.
With a balanced composition of chromium (15-21%), cobalt (19-21%), and reinforced by titanium and aluminum, Nimonic 105 threaded rods are the preferred choice for gas turbine, aerospace, and high-temperature bolting applications where conventional stainless steels fail due to thermal softening or oxidation.
| Material | Nimonic 105 |
| UNS Number | N13021 |
| DIN Number | 2.4634 |
| Material Standard | ASTM B637 |
| Rod Standard (Metric) | DIN 975 / DIN 976 |
| Rod Standard (Inch) | ASME B18.31.3 |
| Thread Form | ISO Metric / UNC / UNF |
| Diameter Range | M6-M64 / ¼"-2½" |
| Tensile Strength | 1100 MPa (160 ksi) min |
| Yield Strength | 800 MPa (116 ksi) min |
| Hardness | Max 38 HRC / 350 HB |
Complete the Fastener Set
Technical Data
| Size (M) | Pitch (mm) | Rod Length (mm) | Thread Type |
|---|---|---|---|
| M6 | 1.0 | 1000 / 2000 / 3000 | Full |
| M8 | 1.25 | 1000 / 2000 / 3000 | Full |
| M10 | 1.5 | 1000 / 2000 / 3000 | Full |
| M12 | 1.75 | 1000 / 2000 / 3000 | Full |
| M16 | 2.0 | 1000 / 2000 / 3000 | Full |
| M20 | 2.5 | 1000 / 2000 / 3000 | Full |
| M24 | 3.0 | 1000 / 2000 / 3000 | Full |
| M30 | 3.5 | 1000 / 2000 / 3000 | Full |
| M36 | 4.0 | 1000 / 2000 / 3000 | Full |
| M42 | 4.5 | 1000 / 2000 / 3000 | Full |
| M48 | 5.0 | 1000 / 2000 / 3000 | Full |
| M56 | 5.5 | 1000 / 2000 / 3000 | Full |
| M64 | 6.0 | 1000 / 2000 / 3000 | Full |
| Standard | Covers | Thread |
|---|---|---|
| DIN 975 | Threaded rods, full thread | Metric |
| DIN 976 | Stud bolts, double end | Metric |
| ASME B18.31.3 | Threaded rods | UNC/UNF |
| ISO 898-1 | Mechanical properties | Metric |
| Material Standard | Requirement |
|---|---|
| ASTM B637 | Bar/rod - UNS N13021 |
| AMS 5829 | High-temp fasteners |
| EN 10204 3.1 | Mill test certificate |
| EN 10204 3.2 | TPI-witnessed MTC |
Material Chemistry
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | Base (=49%) |
| Chromium (Cr) | 15.0-21.0 |
| Cobalt (Co) | 19.0-21.0 |
| Titanium (Ti) | 4.5-5.2 |
| Aluminium (Al) | 4.5-5.2 |
| Carbon (C) | 0.12 max |
| Zirconium (Zr) | 0.12-0.20 |
| Silicon (Si) | 1.0 max |
| Manganese (Mn) | 1.0 max |
| Iron (Fe) | 5.0 max |
| Boron (B) | 0.010-0.020 |
Fastener Performance
| Rod Size | Dry (Nm) | Lubricated (Nm) | Clamp Load (kN) |
|---|---|---|---|
| M12 | 120 | 96 | 40 |
| M16 | 300 | 240 | 90 |
| M20 | 600 | 480 | 145 |
| M24 | 1050 | 840 | 210 |
| M30 | 2100 | 1680 | 340 |
| M36 | 3700 | 2960 | 500 |
| M42 | 5900 | 4720 | 700 |
| M48 | 8800 | 7040 | 950 |
Industry Applications
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