Jul 30 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Fabrication and Heat Treatment
Machinability
Forming
Welding
Forging
Hot Working
Cold Working
Hardening
Other Designations
Applications
Introduction
Sanicro 30 is an austenitic stainless steel material that has excellent high temperature properties. The alloy resists oxidation, stress corrosion cracking and intergranular corrosion at high temperatures.
The following section will provide an overview of Sanicro 30 alloy.
Chemical Composition
The chemical composition of Sanicro 30 alloy is outlined in the following table.
|
Element |
Content (%) |
|
Iron, Fe |
45.8 |
|
Nickel, Ni |
32 |
|
Chromium, Cr |
20 |
|
Manganese, Mn |
0.6 |
|
Silicon, Si |
0.5 |
|
Titanium, Ti |
0.5 |
|
Aluminum, Al |
0.3 |
|
Cobalt, Co |
≤0.1 |
|
Copper, Cu |
≤0.1 |
|
Carbon, C |
≤0.03 |
|
Phosphorous, P |
≤0.02 |
|
Sulfur, S |
≤0.015 |
Physical Properties
The following table shows the physical properties of Sanicro 30 alloy.
|
Properties |
Metric |
Imperial |
|
Density |
8 g/cm3 |
0.289 lb/in3 |
Mechanical Properties
The mechanical properties of Sanciro 30 alloy are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
520-690 MPa |
75400-100000 psi |
|
Yield strength |
≥235 MPa |
≥34100 psi |
|
Elongation at break |
≥30% |
≥30% |
|
Vickers hardness |
150 |
150 |
Thermal Properties
The thermal properties of Sanicro 30 alloy are given in the following table.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@20-100°C/68-212°F) |
16 µm/m°C |
8.89 µin/in°F |
|
Thermal conductivity (@20°C/68°F) |
12 W/mK |
83.3 BTU.in/hrft².°F |
Fabrication and Heat Treatment
Machinability
Conventional machining techniques that are used for machining iron-based alloys can be used.
Forming
Sanicro 30 alloy has excellent ductility, and can be readily formed by all conventional techniques.
Welding
The alloy can be welded using commonly used welding techniques such as gas-tungsten arc welding, shielded metal-arc welding, gas metal-arc welding and submerged-arc welding.
Forging
Sanicro 30 alloy can be forged in the temperature ranging from (1850 to 2250°F).
Hot Working
The alloy can be hot worked in the temperature ranging from (1600 to 2200°F).
Cold Working
Cold working may be performed using standard tooling.
Hardening
The alloy can be hardened by cold working only.
Other Designations
Other designations that are equivalent to Sanicro 30 alloy include the following:
|
AMS 5766 |
ASTM B409 |
|
AMS 5871 |
ASTM B514 |
|
ASTM B163 |
ASTM B515 |
|
ASTM B366 |
ASTM B564 |
|
ASTM B407 |
DIN 1.4876 |
ASTM B408
|
|
Applications
The following are the list of applications of Sanicro 30 alloy:
-
Heat treating equipment and fixtures
-
Sheathing for tubular heating elements
-
Heat exchangers