Sep 26 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Introduction
Stainless steels are high-alloy steels. They have high corrosion
resistance when compared to other steels due to the presence of large
amounts of chromium. Based on their crystalline structure, they are
classified into ferritic, austenitic, and martensitic steels.
Precipitation-hardened steels are another group of stainless steels.
They are a combination of martensitic and austenitic steels.
The following datasheet gives an overview of grade 430Ti stainless
steel.
Chemical Composition
The following table shows the chemical composition of grade 430Ti
stainless steel.
| Element |
Content
(%) |
Iron, Fe
|
76 - 80
|
| Chromium, Cr |
16-19.5 |
| Manganese, Mn |
1 |
| Silicon, Si |
1 |
| Nickel, Ni |
0.8 |
| Titanium, Ti |
0.50 (min) |
| Carbon, C |
0.10 |
| Phosphorous, P |
0.04 |
| Sulfur, S |
0.03 |
Physical Properties
The physical properties of grade 430Ti stainless steel are given in
the following table.
| Properties |
Metric |
Imperial |
| Density |
7.7-8.03 cm3 |
0.278-0.290 lb/in3 |
Mechanical Properties
The mechanical properties of grade 430Ti stainless steel are
outlined in the following table.
| Properties |
Metric |
Imperial |
| Tensile strength |
515 MPa |
74695 psi |
| Yield strength |
310 MPa |
44962 psi |
| Elastic modulus |
190-210 GPa |
27557-30458 ksi |
| Poisson's ratio |
0.27-0.30 |
0.27-0.30 |
| Elongation |
30% |
30% |
| Reduction of area |
65% |
65% |
Thermal Properties
The thermal properties of grade 430Ti stainless steel are given in
the following table.
| Properties |
Metric
|
Imperial
|
Thermal expansion (@ 20-100°C/70-212°F)
|
10.1 (µm/m°C) |
5.61 µin/in°F |
Other Designations
Other designations that are equivalent to grade 430Ti stainless
steel include:
- DIN 1.4510
- ASTM A268
- ASTM A554
- ASTM A651