Material – EN P 420 NH
Standard Specification for Steel Forgings for Pressure Purposes
Group - Ferrous Mild Steel Alloys
Sub Group - EN P 420 NH Steel Forgings for Pressure Purposes
Application - Intended for Valve, Pump, General Engineering, Automotive and Other Industries
Grade Belongs to the Industry - Forging
| Chemical Composition | ||
|---|---|---|
| Carbon | C % | 0.200 max. |
| Silicon | Si % | 0.600 Max. |
| Manganese | Mn % | 1.000 - 1.700 |
| Phosphorus | P % | 0.025 max. |
| Sulphur | S % | 0.010 max. |
| Chromium | Cr % | 0.030 max. |
| Nickel | Ni % | 0.800 max. |
| Molybdenum | Mo % | 0.010 max. |
| Copper | Cu % | 0.300 max. |
| Vanadium | V % | 0.200 max. |
| Niobium | Nb % | 0.050 max. |
| Aluminium | Al % | 0.020 Min. |
| Nitrogen | N % | 0.020 max. |
| Iron | Fe % | Balance |
| - | - | - |
| Heat Treatment |
|---|
| Annealing or Normalising or Hardening + Tempering |
| Mechanical Properties | |
|---|---|
| Tensile Strength in Mpa | 490 - 690 |
| Yield Strength in Mpa | 340 min. |
| Elongation in % | 19 min. |
| Reduction of Area in % | - |
| Hardness in BHN | - |
| Impact in Joule | 40 J @ RT |
Cross Reference Table
| Material | Standard | Country | Grade Belong to the Industry |
|---|---|---|---|
| SA-487 Garde 16A | ASME | USA | Casting |
| 1.6222 | DIN | Germany | Steel |
| 1.8932 | EN | European Union | Forging |
| E 460 DD | JIS | Japan | Plate |
| J31200 | UNS | USA | Casting |
| 9 NiMn 5 | DIN | Germany | Steel |
| A487 16A | ASTM | USA | Casting |