Material – BS 1.5530
Standard Specification for Mild Steel Alloys Steel and Strip
Group - Ferrous Mild Steel Alloys
Sub Group - BS 1.5530 Mild Steel Alloys Steel and Strip
Application - Intended for Valve, Pump, General Engineering, Automotive and Other Industries
Grade Belongs to the Industry - Steel and Strip
| Chemical Composition | ||
|---|---|---|
| Carbon | C % | 0.170 - 0.230 |
| Silicon | Si % | 0.400 max. |
| Manganese | Mn % | 1.100 - 1.400 |
| Phosphorus | P % | 0.025 max. |
| Sulphur | S % | 0.035 max. |
| Boron | B % | 0.0008 - 0.0050 |
| Copper | Cu % | 0.400 max. |
| Iron | Fe % | Balance |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| Heat Treatment |
|---|
| As Raw or Annealing or Normalizing or Hardening and Tempering |
| Mechanical Properties | |
|---|---|
| Tensile Strength in Mpa | 540 min. |
| Yield Strength in Mpa | 430 min. |
| Elongation in % | 14 min. |
| Reduction of Area in % | 55 min. |
| Hardness in HRC | 34 min. |
| Impact in Joule | 60 J @ RT |
Cross Reference Table
| Material | Standard | Country | Grade Belong to the Industry |
|---|---|---|---|
| 20MnB5 | EN | European Union | Bar and Rod |
| 1.553 | EN | European Union | Bar and Rod |
| 20 MB 5 | AFNOR NF | France | Bar, Wire and Rod |
| 20MnB5 | ISO | International | Bar and Rod |
| 1.553 | UNI | Italy | Steel and Strip |
| 20MnB5 | UNI | Italy | Steel and Strip |
| 20MnB5 | BS | British | Steel and Strip |