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Grade | Density (g/cm3) | Hardness(HRC) | TRS (Mpa) | Porosity | Abrasion test | Machining | ||
Annealing | Hardening | |||||||
GT35 | 6.42~6.55 | ≤48 | ≥68 | ≥1400 | A04 B04 | - | √ | |
TM52 | 6.12~6.25 | sintered state: HRC≥60 | ≥1500 | A04 B04 | 7.2 | × | ||
Grade | Elastic modulus (×102kg/cm2) | Specific resistivity (Ωmm2/m) | Coercive force(HC) | Impact toughness (J/cm2) | Thermal expansion Coefficient(×10-6/ºC) | ||||||
Annealing | Hardening | Annealing | Hardening | Temperature | a | ||||||
GT35 | 306 | 298 | 0.812 | ≥3.5 | 68 | ≥3.5 | 20~200 20~700 | 8.43 11.83 | |||
TM52 | - | - | - | - | - | - | 20~200 20~700 | 9.16 11.13 | |||










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