Ni 36 / 1.3912
Ni 36 / 1.3912 / Alloy 36 – Precision Expansion Alloy for Dimensional Stability
Properties of Ni 36 / 1.3912 / Alloy 36
Ni 36/Alloy 36 is an iron-nickel alloy with exceptionally low thermal expansion. With approximately 36 % nickel, it maintains nearly constant dimensions over a wide temperature range—perfect for applications requiring tight dimensional tolerances.
Key Features:
- Extremely low coefficient of thermal expansion
- Excellent dimensional stability under temperature changes
- Good mechanical properties in the low to medium strength range
- Easily machinable
- Magnetic at room temperature
Applications of Ni 36 / Alloy 36
Ni 36 / Alloy 36 is ideal for applications demanding high thermal and dimensional precision:
- Precision measuring devices (scales, rulers)
- Temperature sensors and thermostats
- Thermo-bimetals and compensation elements
- Semiconductor production and optics
- Sensor technology and gas analysis
- Cryogenics and liquefied gas transport
Specification Overview
| Material number | 1.3912 |
| Alloy | 36 |
| EN designation | Ni 36 |
| UNS | K93600 |
| Böhler Grade | P802 |
| Sheet | ASTM B753, ASME SB753, DIN EN 17745, ASTM F184, SEW 385 |
| Bar | ASTM F1684, EN 17745, SEW 385 |
| Other | SEW 385 |
Physical Properties:
| Property | Value |
|---|---|
| Material Density | 8.2 g/cm³ |
| Thermal conductivity | approx. 13,0 W/m·K (at 20 °C) |
| Electrical Resistivity | approx. 0.76 Ω·mm²/m |
Thermal Expansion (20–600 °C):
Temperature [°C] | 50 | 100 | 150 | 200 | 300 | 400 | 500 | 600 |
|---|---|---|---|---|---|---|---|---|
Expansion [10⁻⁶ m/m·K] | 0.8 | 1.2 | 1.6 | 2.2 | 4.5 | 7.5 | 9.2 | 10.7 |
Mechanical Properties:
Typical at room temperature:
| Property | Typical Value |
|---|---|
| Yield Strength Rp0.2 | approx. 270 N/mm² |
| Tensile Strength Rm | 440–640 N/mm² |
| Elongation A | ≥ 30 % (depending on spec) |
| Hardness (Brinell) | Approx. 130–170 HB |
Typical Chemical Composition:
Element Content (wt. %)
| C | Si | Mn | Ni | Fe |
| ≤ 0.08 | 0.30 | 0.30 | approx. 36.5 | Balance |
Product Portfolio
Flat Products (Sheet/Plate)
Thicknesses: 3 mm to 40 mm – per ASTM F1684, SEW 385, with EN 10204 3.1 certification
Round Bars
Diameters: 10 mm to 340 mm – according to SEW 385, tensile test and ultrasonic testing available
Custom Solutions on Request:
Non-standard dimensions, forgings, semi-finished and machined parts – also available as mill quantities.
All information without guarantee and for informational purposes only.