Tensile Strength is the maximum tension applied as loading that a fastener can support prior to (or coincidental with) its fracture.
Stainless steel fasteners can be made to different grades which relate to properties such as corrosion resistance and also different strength classes. These classes can be identified by their head markings such as on stainless steel bolts.
| Imperial | Ibf/in2 | MPa | Metric |
|---|---|---|---|
| 1200 | Stainless Steel Class 120 (e.g. Bumax 129) | ||
| Stainless Steel Class 120 | 1200 | Class 12.9 (AS1110 High Tensile Steel) | |
| 1100 | |||
| SAE Grade 8 (A5 2465 High Tensile Steel) | 150000 | 1034 | Class 10.9 (A5 1110 High Tensile Steel) |
| Stainless Steel Class 100 | 1000 | Stainless Steel Class 100 (e.g. Bumax 109) | |
| SAE Grade 5 (A5 2465 High Tensile Steel) | 120000 | 900 | Class 8.8 (A5 1110 High Tensile Steel) |
| 827 | |||
| Stainless Steel Class 80 (e.g. 316-80, Bumax 88) | 116000 | 800 | Stainless Steel Class 80 (e.g. A4-80, Bumax 88, SS2507) |
| Stainless Steel Class 70 (e.g. 304-70, 316-70) | 101000 | 700 | Stainless Steel Class 70 (e.g. A2-70, A4-70) |
| 600 | Class 5.8 (AS1110) | ||
| 550 | |||
| 520 | |||
| Stainless Steel Class 50 (e.g. No Markings) | 72000 | 500 | Stainless Steel Class 50 (e.g. No Markings) |
| BSW Mild Steel (A5 2451) | 65000 | 450 | Class 4.6 (AS1110) Mild Steel (AS1390) |
| 62000 | 427 | ||
| 58015 | 400 |
100 PSI (Ibf/in2 = 6.894Mpa)
1Mpa = 145.038 PSI (Ibf/in2)
 |
|
|
|
| Tensile Loads | Tightening Torques | What is Loading? | Yield Loads |
 |
 |
 |
 |
| Stainless Steel Bolts | Stainless Steel Nuts | Stainless Steel All Thread Rod | Stainless Steel Screws |
Are you sick of cutting your bolts down?
How to install Stainless Down Pipe Brackets
Calculate the corrosion resistance of your stainless steel with our PREN calculator
To receive useful info and product updates add your details below
Request a hardcopy of our product wall chart or download a PDF.
Download a PDF of our paper based catalogue.
