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| Categories | Carbide Cold Heading Dies |
|---|---|
| Brand Name: | PM |
| MOQ: | 1 |
| Price: | USD 55~65/KG |
| Payment Terms: | L/C, T/T |
| Delivery Time: | 10 working days |
| Product material: | tungsten carbide,100% Original Carbide |
| Material: | tungsten carbide |
| Product name: | Customized Tungsten Carbide Punching Cold Heading Dies,cold heading die for screws and nuts |
| Application: | For Scews,Nuts etc. |
| Size: | Customer Size Accepted |
| Grade: | MD60A |
| Surface treatment: | Polishing,Ungrounded |
| Usage: | For cold heading and cold punching fasteners |
| Advantage: | High toughness & good wear resistance.,30years production experience in tungsten carbide field |
Cold Heading Dies Grade MD60A
| Grade | Co | Grain Size of WC | Hardness | Density | Flexural Strength | Bending Toughness | Elastic Modulus | Coefficient of Thermal Expansion | Application | |
| % | HRA | HV30 | g/cm3 | MPa | N/mm2 | GPa | 10-6/℃ | |||
| MD51B | 19 | medium | 85 | 940 | 13.5 | 3100 | 400 | 6.7 | Suitable for mould of shrinkage rod with large reduction in diameter | |
| MD50A | 20 | medium | 85.8 | 1020 | 13.4 | 3300 | 390 | 6.8 | Suitable for mould of shrinkage rod with small reduction in diameter | |
| MD60A | 20 | medium | 84 | 860 | 13.6 | 2900 | 390 | 6.8 | Suitable for mould to make straight rod, screws,nut etc | |
| MD61B | 22 | medium | 84 | 860 | 13.3 | 3150 | 360 | 7.1 | Suitable for heavy hardness stainless steel | |
| MD62B | 22 | medium | 83.5 | 820 | 13.3 | 3000 | 360 | 7.1 | Suitable for dry wall screw and common stainless steel | |
| MD65A | 25 | medium | 84.1 | 870 | 12.9 | 3100 | 340 | 7.6 | Suitable for heavy loads straight rod moulds | |
| MD70A | 25 | medium | 82.5 | 760 | 13.1 | 2800 | 340 | 7.6 | Suitable for heavy loads nut moulds | |
| D | L | ||||
| ≤15 | ＞15～30 | ＞30～50 | ＞50～80 | ＞80 | |
| Deviation | |||||
| ≤Ф15 | ±0.20 | ±0.30 | ±0.40 | ||
| ＞Ф15～30 | ±0.30 | ±0.40 | ±0.50 | ±0.60 | |
| ＞Ф30～50 | ±0.50 | ±0.60 | ±0.70 | ±0.75 | ±0.80 |
| ＞Ф50～80 | ±0.70 | ±0.88 | ±0.90 | ±1.0 | |
| d | L | ||||
| ≤18 | ＞18～30 | ＞30～50 | ＞50～80 | ＞80 | |
| Deviation | |||||
| ≤Ф5 | 0～-0.40 | 0～-0.40 | 0～-0.4 | 0～-0.5 | |
| ＞Ф5～10 | 0～-0.50 | 0～-0.60 | 0～-0.70 | 0～-0.75 | |
| ＞Ф10～20 | 0～-0.70 | 0～-0.75 | 0～-0.80 | 0～-0.90 | 0～-1.00 |
| ＞Ф20～35 | 0～-0.90 | 0～-1.00 | 0～-1.10 | 0～-1.20 | |
| L | D | ||||
| ≤Ф15 | ＞Ф15～Ф30 | ＞Ф30～Ф50 | ＞Ф50～Ф80 | ||
| Deviation | |||||
| ≤15 | ﹢0.8 | ﹢1.0 | ﹢1.2 | ||
| ﹢0.3 | ﹢0.3 | ﹢0.3 | |||
| ＞15～30 | ﹢1.0 | ﹢1.2 | ﹢1.5 | ﹢1.6 | |
| ﹢0.3 | ﹢0.3 | ﹢0.3 | ﹢0.4 | ||
| ＞30～50 | ﹢1.5 | ﹢1.5 | ﹢1.8 | ﹢2.0 | |
| ﹢0.5 | ﹢0.5 | ﹢0.5 | ﹢0.5 | ||
| ＞50～80 | ﹢2.0 | ﹢2.0 | ﹢2.2 | ﹢2.5 | |
| ﹢0.5 | ﹢0.5 | ﹢0.5 | ﹢0.6 | ||
| ＞80 | ﹢3.0 | ||||
| ﹢0.6 | |||||
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