Alloy 330, UNS N08330, 1.4864, 1.4886 - heat-resistant Chromium-Nickel Alloy
Navigation:
| Standard | Grade | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical composition % | |||||||||||||||
| C: | Mn: | Si: | P: | S: | Cr: | Ni: | Ti: | V: | Mo: | W: | N: | Cu: | |||
| PN | H16N36S2 | ||||||||||||||
| <0.15 | <2.0 | 1.5 – 2.0 | <0.045 | <0.030 | 15.0 – 17.0 | 34.0 – 37.0 | - | <0.2 | <0.5 | <0.5 | - | - | |||
| EN | X12NiCrSi35-16 / 1.4864 | ||||||||||||||
| <0.15 | <2.0 | 1.0 – 2.0 | <0.045 | <0.015 | 15.0 – 17.0 | 33.0 – 37.0 | - | - | - | - | <0.11 | - | |||
| EN | X10NiCrSi35-19 / 1.4886 | ||||||||||||||
| <0.15 | <2.0 | 1.0 – 2.0 | <0.030 | <0.015 | 17.0 – 20.0 | 33.0 – 37.0 | - | - | - | - | <0.11 | - | |||
| ASTM | N08330 / Alloy 330 | ||||||||||||||
| <0.08 | <2.0 | 0.75-1.5 | <0.030 | <0.030 | 17.0 – 20.0 | 34.0 – 37.0 | - | - | - | - | - | <1.0 | |||
| STAS | 12SiCrNi360 | ||||||||||||||
| <0.2 | <0.5 | 1.0 – 2.0 | <0.035 | <0.015 | 14.0 – 17.0 | 32.0 – 34.0 | - | - | - | - | - | - | |||
| BS | NA 17 | ||||||||||||||
| <0.1 | 0.8 – 1.5 | <0.2 | - | <0.030 | <0.5 | 34.5 – 41.0 | - | - | - | - | - | - | |||
| STAS | 12SiCrNi360 | ||||||||||||||
| <0.15 | <2.0 | 1.0 – 2.0 | <0.045 | <0.030 | <0.3 | 34.0 – 37.0 | - | - | - | - | - | - | |||
| GOST | XH35BT | ||||||||||||||
| <0.12 | 1.0 – 2.0 | <0.6 | <0.030 | <0.020 | 14.0 – 16.0 | 34.0 – 38.0 | 1.10 – 1.50 | - | - | 2.80 – 3.50 | - | - | |||
Alloy 330 / N08330, 1.4864, 1.4886 – description
H16N36S5 alloy is similar to austenitic stainless steel except for greater high temperature strength. It is designed to operate in high-temperature together with carburizing, nitridizing and cyaniding environments. It performs well under cyclic conditions of heating / cooling and carburizing / oxidizing atmospheres.
Excellent resistance to oxidation and carburization is provided by high nickel and chromium content. The oxidation resistance is further enhanced by the silicon addition.
Steel 1.4864 has:
- Good heat-resistance up to about 1100°C
- Excellent carburization, nitridation and oxidation resistance
- Low sulfidation resistance.
- Weldable (neither pre- nor post-weld heat treatment is required)
- Highly resistant to chloride stress corrosion cracking
Applications
This alloy is widely used for:
- High-treat furnance parts
- Chemical and petrochemical furnance parts
- Cracked ammonia components
- Heat exchangers in chemical processing
- Perlite systems and equipment
- Gas turbine components in power generators
1.4864, X12NiCrSi35-16, 1.4886, X10NiCrSi35-19, Alloy 330 / N08330 – physical properties
The general physical properties for steel of this type:
| Grade: | 1.4886 | 1.4864 | Alloy 300 |
|---|---|---|---|
| Electrical resistivity: | 1 μΩ*m | 1 μΩ*m | 1.017 μΩ*m |
| Density: | 8g/cm3 | 8g/cm3 | 8.08g/cm3 |
| Specific heat capacity: | 460 J/kg*K | 550 J/kg*K | 460 J/kg*K |
| Linear expansion coefficient: | 15.5-18.0 (10^6)/OC | 15 (10^6)/OC | 15.5-18.0 (10^6)/OC |
| Thermal conductivity at 20OC | 12 W/m*K | 12.5 W/m*K | 12.4 W/m*K |
| Melting temperature: | 1380-1420 OC | 1380-1420 OC | 1380-1420 OC |
Mechanical properties
The most important parameter for this type of steel is creep limit or creep strength. It is a maximum stress a given material can withstand in a given temperature for 1000 hours without exceeding 1% of creep.
| Creep limit [MPa] | Temperature [℃] | ||||||
|---|---|---|---|---|---|---|---|
| 600 | 700 | 800 | 900 | 1000 | 1100 | 1200 | |
| H16N36S2 | - | - | 20 | 9 | 4 | 1.2 | 0.05 |
| 1.4886 | 110 | 60 | 25 | 12 | 4 | ? | ? |
| 1.4864 | 195 | 50 | 25 | 12 | ? | ? | ? |
Other mechanical properties at room temperature:
| Grade: | 1.4886 | 1.4864 | Alloy 300 |
|---|---|---|---|
| Yield Strength: | >270 MPa | >230 MPa | 241-310 MPa |
| Tensile strength: | 500-650 MPa | 550-750 MPa | 552-621 MPa |
| Elongation: | >40% | >28% | >35% |
| Hardness HB: | <200 | <223 | - |
Data above for supersaturated steel.
Heat treatment and plastic working
Following parameters are recommended for working and heat treatment
Working: Forging at 800-1150 °C. Air cooling.
Heat treatment: Solutioning at 1050-1100 °C. Water cooling.
Welding
N08330 is weldable and neither pre- nor post-weld heat treatment is required. Be sure to use following materials.
- Coated electrodes: ENiCrFe-1
- Filler metal for GMAW welding: ERNiCr-3
We deliver this steel alloy as:
- rods
- sheets
- tubes
Replacements, equivalents and other designations:
XH35BT, 30330, X12NiCrSi-3516, ASTM B366, ASTM B536, E330ACO, 12Cr16Ni35, 1Cr16Ni35, S33010, PHY HT4828, Z20NCS33-16, Alloy DS, BOHLER H520, Coralloy 330, Eternos Ni 35, Ferrotherm 4864, Hafesta 35H, HBS36, HCN35, HZ64, Nicrofer 3718, SFV40, Techalloy DS, NA17, H7Ni, H17, STR330KS, 12SiCrNi360, F-3313, SST330, 30330 SAE, 330 AlSl, Incoloy 330, N08330, RA330, 1.4864, 1.4886