Commonly used mold steel hardness table
Time：2023-05-03 09:03:23 / Popularity： / Source：
| Parts name | Steel name | Hardness requirement | General number | |
| Mold base | 1050 (DME1) no special requirements | HB170~220 | 1050 | |
| WP20 (DME2) customer request | Pre-hard HRC29~33 | P20 | ||
| Original | W718 (no special requirements) | Pre-hardened HRC29~33 | P20 | |
| Thickness over 350 or polishing, patterns are required to use 738 | Pre-hardened HRC29~33 | P20 | ||
| There are hardness requirements to use 738H (specifically check mold book) | Pre-hardened HRC35~38 | P20 | ||
| Wedge | 1050 | HB170~220 | 1050 | |
| Yuzai WP20 | Pre-hardened HRC29~33 | P20 | ||
| Viking 2767 | Quenching HRC53~55 | 2767 | ||
| Use WP20 for slider in oil plate | HRC29~33 | P20 | ||
| Pressed bar | 2510 | Quenching HRC50~54 | 01 | |
| BRONZE BRONZE OR BRONZE WITH GRAPHITE (GUEST REQUEST) | Bronze BRONZE | |||
| Hanging module (lock module) | 1050 | HB170~220 | 1050 | |
| Cylinder needle baffle | 1050 | HB170~220 | 1050 | |
| Hook | 2344 | Hardened HRC46~48 | H13 | |
| Slider wear plate | 2510 (no special requirements) | Quenching HRC50~54 | 01 | |
| BRONZE BRONZE OR BRONZE WITH GRAPHITE (GUEST REQUEST) | Bronze BRONZE / with graphite bronze | |||
| Wedge wear plate | 2510 (no special requirements) | Quenching HRC50~54 | 01 | |
| BRONZE BRONZE OR BRONZE WITH GRAPHITE (GUEST REQUEST) | Bronze BRONZE / with graphite bronze | |||
| Cylinder Cup Division | WP20 | Pre-hardened HRC29~33 | P20 | |
| Cylinder bracket, fixing plate | 1050 | HB170~220 | 1050 | |
| Positioning ring | 1050 | HB170~220 | 1050 | |
| Nozzle ( the whole nozzle) | 2083 | Quenching HRC46~48 | 420 | |
| Nozzle iron, Nozzle Division | Same as inner mold material | |||
| Nozzle sleeve, Nozzle insert | 2083 | Quenching HRC46~48 | 420 | |
| Straight Jack Cup Division | Bronze BRONZE | Bronze BRONZE | ||
| Lefter Cup Division | FDAC | FDAC | ||
| Water collector | Domestic 6061 | 6061 | ||
| Support column, limit column | 1050 | HB170~220 | 1050 | |
| KO insert | 1050 | HB170~220 | 1050 | |
| Pre-reset mechanism | Same as KM data | Same as KM data | ||
| Deduction | Same as KM data | Same as KM data | ||
| Slider rail block | 2510 | Quenching HRC50~54 | 01 | |
| Bronze BRONZE (guest request) | Bronze BRONZE |
|||
| Lefter | Same as KM data | |||
| Wedge block | WP20 | Prehardened HRC29~33 | P20 | |
| Inner mold inserts | Ordinary inserts and inner mold material (2767 for Viking and inner mold material) | |||
| Inserts (FDAC) with P20 inner mold material | Pre-hardened HRC38~42 H13 | |||
| Inserts (2344) with inner mold 2344 | Hardness is two degrees lower (HRC46~48) | H13 | ||
| Insertion inserts whose length and width are less than 10MM in material level (2344) | Quenching HRC42~44 (to prevent high hardness and easy brittle fracture) | H13 | ||
| Inserts with inner mold material of 2083H are quenched with 2083 | Quenching HRC48~52 | 420 | ||
| Positioning block and positioning insert | Same as inner mold material, if it is a quenching material, it is two degrees lower than inner mold | |||
| W718, 2083H | Pre-HRC29~33 | P20, 420 | ||
| 2344, 2083 | Quenching HRC48~52 | H13, 420 | ||
| French molds need nitriding (except for 420 materials) | On the basis of original hardness plus nitride HV700 | |||
| Slide | The overall slide is same as inner mold material | Hardness of quenching material is two degrees lower than that of internal mold | ||
| WP20 is used for position where split row is not demould | Pre-hardened HRC29~33 | P20 | ||
| French molds need nitriding (except for 420 materials) | On the basis of original hardness plus nitride HV700 | |||
| Wear plate | WP20 | Pre-hardened HRC29~33 | P20 | |
| 2510 | Quenching HRC50~54 | 01 | ||
| Oil collector, water collector, air collector | 1050 | Prehardened HRC170~220 | 1050 | |
| Straight top block overall straight top | FDAC | Pre-hardened HRC38~42, nitrided HV700 | H13 | |
| 420 (stainless steel) | Quenching with 420 can not be nitrided | |||
| Customer requires material certificate to be same as inner mold material | Two degrees lower than inner mold and nitriding | |||
| Movable core insert | It is necessary to analyze nitriding of small and easy-to-process materials as much as possible. | Nitrided HV700 required | ||
| Split lefter head | FDAC | Pre-hardened HRC38~42, nitrided HV700 | H13 | |
| 420 (stainless steel) | Quenching with 420 cannot be nitrided | |||
| Customer requires material certificate to be the same as inner mold material | Two degrees lower than inner mold and nitriding | |||
| Note: | ①420 (stainless steel) cannot be nitrided | |||
| ②Material level cannot be welded after nitriding | ||||
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