- UNS Number - UNS S21900
- Specification - AMS 5561
- Form - Welded and Drawn or Seamless and Drawn Tubing
General Information
This specification covers a corrosion and heat resistant steel in the form of welded and drawn or
seamless and drawn tubing.
Mechanical Properties
| Property |
Min Value |
Max Value |
| N/mmsq 0.2% Yield Strength |
827 |
0 |
| N/mmsq Ultimate Tensile Strength |
979 |
1117 |
| % Elongation |
0 |
0 |
| % Reduction of Area |
0 |
0 |
| Hardness Rockwell B (HRB) |
0 |
0 |
| Hardness Rockwell C (HRC) |
0 |
0 |
| Hardness Brinell (BHN) |
0 |
0 |
| Hardness Vickers (HV) |
0 |
0 |
Chemical Elements
| % Carbon (C) |
0 |
0.040 |
| % Chromium (Cr) |
19.00 |
21.50 |
| % Manganese (Mn) |
8.00 |
10.00 |
| % Molybdenum (Mo) |
0 |
0.75 |
| % Nickel (Ni) |
5.50 |
7.50 |
| % Phosphorus (P) |
0 |
0.030 |
| % Sulphur (S) |
0 |
0.030 |
| % Silicon (Si) |
0 |
1.00 |
| % Iron (Fe) |
58 |
67.35 |
| % Copper |
0 |
0.75 |
| % Magnesium |
0 |
0 |
| % Zinc |
0 |
0 |
| % Titanium |
0 |
0 |
| % Aluminium |
0 |
0 |
| % Cobalt (Co) |
0 |
0 |
| % Zirconium (Zr) |
0 |
0 |
| % Boron (B) |
0 |
0 |
| % Lead (Pb) |
0 |
0 |
| % Bismuth (Bi) |
0 |
0 |
| % Selenium (Se) |
0 |
0 |
