Introduction
Alloy steels are designated by AISI four digit numbers. They comprise different forms of steels exceeding the composition limits of B C, Mo, Si, Ni, Va, and Mn set for carbon steels. They respond more quickly to mechanical and heat treatments than carbon steels.
The following datasheet gives more details about AISI 8627H alloy steel.
Chemical Composition
The chemical composition of AISI 8627H alloy steel is listed in the following table.
| Element | Content (%) |
| Iron, Fe | 96.72 - 98.16 |
| Manganese, Mn | 0.600 - 0.950 |
| Nickel, Ni | 0.350 - 0.750 |
| Chromium, Cr | 0.350 - 0.650 |
| Carbon, C | 0.240 - 0.300 |
| Silicon, Si | 0.150 - 0.300 |
| Molybdenum, Mo | 0.150 - 0.250 |
| Sulphur, S | GBP 0.0450 |
| Phosphorous, P | GBP 0.0350 |
Physical Properties
The physical properties of AISI 8627H alloy steel are given in the following table.
| Properties | Metric | Imperial |
| Density | 7.85 g/cm3 | 0.284 lb/in3 |
Mechanical Properties
The following table outlines the mechanical properties of AISI 8627H alloy steel.
| Properties | Metric | Imperial |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Hardness, Brinell (annealed and cold drawn) | 179 - 223 | 179 - 223 |
| Hardness, Knoop (converted from Brinell hardness) | 223 | 223 |
| Hardness, Rockwell B (converted from Brinell hardness) | 93 | 93 |
| Hardness, Rockwell C | 13 | 13 |
| Hardness, Vickers (converted from Brinell hardness) | 211 | 211 |
| Machinability | 60 | 60 |
Thermal Properties
The following table shows the thermal properties of AISI 8627H alloy steel.
| Properties | Metric | Imperial |
| Thermal conductivity (typical steel) | 46.6 W/mK | 323 BTU in/hr.ft2.�F |
Other Designations
Other designations that are equivalent to AISI 8627H alloy steel include:
ASTM A304
SAE J1268
Source - www.azom.com
(www.steelguru.com)
