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 compared to other steels due to the presence of large
amounts of chromium. Based on their crystalline structure, they are
further divided into three types such as ferritic, austenitic, and
martensitic steels. Another group of stainless steels are
precipitation-hardened steels, a combination of martensitic and
austenitic steels.
The following datasheet gives an overview of grade 436 stainless
steel.
Chemical Composition
The chemical composition of grade 436 stainless steel is outlined in
the following table.
| Element |
Content
(%) |
| Iron, Fe |
81.3 |
| Chromium, Cr |
16 |
| Molybdenum, Mo |
1 |
| Manganese, Mn |
1 |
| Niobium, Nb + Tantalum, Ta |
0.5 |
| Carbon, C |
0.12 |
| Phosphorous, P |
0.040 |
| Sulfur, S |
0.030 |
Physical Properties
The following table shows the physical properties of grade 436
stainless steel.
| Properties |
Metric |
Imperial |
| Density |
7.80 cm³ |
0.282 lb/in³ |
Mechanical Properties
The mechanical properties of annealed grade 436 stainless steel are
given in the following table.
| Properties |
Metric |
Imperial |
| Tensile strength |
538 MPa |
78000 psi |
| Yield strength |
441 MPa |
64000 psi |
| Elastic modulus |
200 GPa |
29008 ksi |
| Poisson's ratio |
0.27-0.30 |
0.27-0.30 |
| Elongation at break |
32% |
32% |
| Reduction of area |
77% |
77% |
| Hardness, Rockwell B |
89 |
89 |
Thermal Properties
The thermal properties of grade 436 stainless steel are highlighted
in the following table.
| Properties |
Metric |
Imperial |
| Thermal expansion co-efficient (@
0-100°C/32-212°F) |
10.4 µm/m°C |
5.78 µin/in°F |
Other Designations
Other designations that are equivalent to grade 436 stainless steel
include:
- SAE 51436
- SAE J405 (51436)