Material – BS 1.7189
Standard Specification for Mild Steel Alloys Bar and Rod
Group - Ferrous Mild Steel Alloys
Sub Group - BS 1.7189 Mild Steel Alloys Bar and Rod
Application - Intended for Valve, Pump, General Engineering, Automotive and Other Industries
Grade Belongs to the Industry - Bar and Rod
| Chemical Composition | ||
|---|---|---|
| Carbon | C % | 0.360 - 0.420 |
| Silicon | Si % | 0.400 max. |
| Manganese | Mn % | 1.400 - 1.700 |
| Phosphorus | P % | 0.025 max. |
| Sulphur | S % | 0.035 max. |
| Chromium | Cr % | 0.300 - 0.600 |
| Boron | B % | 0.0008 - 0.0050 |
| Iron | Fe % | Balance |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| Heat Treatment |
|---|
| As Raw or Annealing or Normalizing or Hardening and Tempering |
| Mechanical Properties | |
|---|---|
| Tensile Strength in Mpa | 1000 - 1350 |
| Yield Strength in Mpa | 800 min. |
| Elongation in % | 12 min. |
| Reduction of Area in % | 50 min. |
| Hardness in BHN | 255 max. |
| Impact in Joule | 40 J @ RT |
Cross Reference Table
| Material | Standard | Country | Grade Belong to the Industry |
|---|---|---|---|
| 39MnCrB6-2 | EN | European Union | Bar and Rod |
| 1.7189 | EN | European Union | Bar and Rod |
| 39MnCrB6-2 | ISO | International | Bar and Rod |
| 1.7189 | AFNOR NF | France | Bar and Rod |
| 39MnCrB6-2 | AFNOR NF | France | Bar and Rod |
| 39MnCrB6-2 | BS | British | Bar and Rod |
| 1.7189 | NBN | Belgium | Bar and Rod |