20 yillik professional apparat ishlab chiqaruvchisi - JM Hardware
ISO 898-2
2021-10-20
Yong'oq uchun standart | Baho | Qattiqlik | Yong'oqning o'lchamli uslubi | Nominal yong'oq hajmi | Isbot yuk stressi ksi | Boshni belgilash | |
ichida | Ruxsiz qoplamali yong'oqlar | Rux bilan qoplangan yong'oqlar | |||||
ISO 898-2 2009（DIN934） | 4 | M16 117-302HV ustida | 510MPa | / | |||
6 | M16 15-302HV gacha, M16 170-302HV dan yuqori | 600-720MPa | / | ||||
8 | M4 180-302, M16 gacha 200-302 (HRB94-31.5), M39 gacha 233-353HV | 800-920MPa |
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10 | 272-353HV | 1040-1060MPa |
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12 | 272-353HV | 1140-1170MPa |
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