Characteristic
HAP 40 steel using for Stamping Tooling, Precision Punches and Dies with material hardness: 64-67 HRC Vacuum furnace heat treatment and advanced tempering technology enable the DC53 equvalent ...
Availability
Round bar:
Diameter : 1mm-2000mm
Square bar:
Size: 50mm * 50mm - 600mm *600mm
Plate steel/flat bar:
Size: Thickness: 0.1mm-800mm Width: 10mm to 1500mm
Tube/pipe:
Size: OD: 6-219mm WT: 1-35 mm.
Cold-rolled sheet: Thickness: 2-5mm Width:1000mm Length: 2000mm
Hot-rolled sheet: Thickness:6-80mm Width: 210-610mm
Chemical Composition
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) | Mo(％) | V(%) | Ti(%) |
| 1.30 | 4.0 | 5.0 | 3.0 | ||||||
| W(%) | N(%) | Cu(%) | Co(%) | Pb(%) | B(%) | Nb(%) | Al(%) | Ta(%) | Other(%) |
| 6.0 | 8.0 | ||||||||
Mechanical Properties
Heat Treatment
| Annealing hardness HBS |
Cold pull hardness HBS |
Preheating temperature ℃ |
Quenching temperature ℃ |
Holding time min |
Hardening medium | Temper temperature ℃ |
After tempering hardness ≥HRC |
|
| salt-bath furnace | controlled atmosphere furnace | |||||||
| 235 | 262 | 788 | 1191 | 1204 | 5～15 | air cooling | 522 | 60 |
| Steel plate/Sheet thickness / mm |
σb MPa |
σs ≥/MPa |
δ Samples from the standard for 50 mm (2 in) |
180 ° of cold bending test | |
| longitudinal | horizontal | ||||
| Hot-rolled/Cold rolling:5 - 150 | 520 | 415 | 16～18 | 2a | 3.5a |
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/ any conditions
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirement.
UTS according to SEP 1921 C/c,D/d,E/e;A388 or GB/T 6402
Hardness
1.Material:SKH51(M2): Hardness: 61-64HRC
2.Material:SKH40 /ASP30: Hardness: 64-67HRC
3.Material:CPM10V: Hardness: 62-64HRC
4.Material:HAP40/ASP30: Hardness: 64-67 HRC
