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|Minimum Order
Place of Origin:
-
Price for Minimum Order:
-
Minimum Order Quantity:
1 Metric Ton
Packaging Detail:
Standard seaworthy packing or as customer required
Delivery Time:
within 7 days for stock material; new production w
Supplying Ability:
-
Payment Type:
T/T, L/C
連絡先担当者 zhang
Xisanshan district, Huangshi, Hubei
Introduction:
H*3 is a chromium, molybdenum, vanadium hot work tool steel which is characterized by high hardenability and excellent toughness. The molybdenum and vanadium act as strengthening agents. The chromium content assists H**3 to resist softening when used at high temperatures. H**3 offers an excellent combination of shock and abrasion resistance, and possesses good red hardness. It is capable of withstanding rapid cooling and resists premature heat checking. H**3 has good machinability, good weldability, good ductility, and can be formed by conventional means.
Specification :
| Size | round | Dia *5mm~**0mm |
| flat | Thickness *0mm***0mm | |
| Width *0mm***0mm | ||
| Technique | Cold Drawn/Cold Pilfered/Cold Rolled/Hot Rolled/forge- | |
| Process | EAF+LF+VD+ESR+Forged/Hot rolled + Heat Treatment (Annealed, Normalized, Q+T) | |
| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
| Surface Condition | Black surface ; Grinded ; Machined/Turned | |
| Inspection | **0% Ultrasonic according to the test standards:SEP******4,CLASS C/c or D/d | |
| Payment Terms | T/T; L/C | |
| Trade Terms | FOB,CIF,CFR | |
| Packing | Standard seaworthy packing or as customer required | |
Equivalent Grade :
| GB | ASTM | DIN | JIS | EN |
| 4Cr5MoSiV1 | H*3 | 1.***4 | SKD*1 | X*0CrMoV**1 |
Chemical Composition :
| C | Si | Mn | Cr | Mo | V | P | S |
| 0.***0.*5 | 0.**1.2 | 0.**0.5 | 4.*5~5.*0 | 1.**1.*5 | 0.**1.2 | ≤0.**0 | ≤0.**0 |
Heat treatment :
| Heat Treatment | |
| Forging | Preheat slowly to **0°C then increase the temperature more rapidly to ********0 °C. Do not forge below **0°C. It is essential to cool the H*3 slowly after forging, either in a furnace or in vermiculite |
| Annealing | Soak thoroughly at ******0°C before furnace cooling at a maximum rate of *0°C per hour down to **0°C followed by cooling in air. |
| Stress relieving | When desirable to relieve the strains of machining, heat slowly to ***0°****0°F, allow to equalize,and then cool in still air (Strain Relieving) |
| Preheat prior to hardening | Warm slightly before charging into the preheat furnace, which should be operating at ***0°****0°F. |
| Hardening | H*3 is a steel having very high hardenability and should be hardened by cooling in still air. The use of a salt bath or controlled atmosphere furnace is desirable to minimize decarburization, and if not available, pack hardening in spent pitch coke is suggested. The temperature employed is usually ***0°****0°F, depending on size section. |
| Quenching | Quench in still air or dry air blast. If complicated forms are to be hardened, an interrupted oil quench can be used. Quench part in oil and remove from bath when it just loses its color (***0°****0°F). Finish cooling to below **0°***5°F in air, then temper immediately. |
| Tempering | Tempering practice may vary with size and application, but is usually performed in the range of maximum secondary hardness or higher. Double tempering is recommended. The results below is H*3 that was air quenched from ***0°F and tempered for 4 hours at various temperatures.The results may be used as a guide, keeping in mind that parts of heavy section or mass may be several points lower in hardness. |
| Applications | Typical applications for are forging dies, forging die inserts, hot gripper dies, hot nut tools, hot header dies, brass forging and pressing dies, aluminum base dies, aluminum casting and extrusion dies, zinc die casting dies, extrusion mandrels, plastic molds, cores, die holder blocks, hot press dies, hot work punches, etc. |
