20 yillik professional apparat ishlab chiqaruvchisi - JM Hardware
ASTM A354
2021-10-20
Bolt uchun standart | Baho | Bolt hajmi | Kuchlanish kuchi | Chidamlilik kuchi | Enlogatsiya | Qattiqlik | Boshni belgilash | |
ichida | ksi | ksi | % | Brinell | Rokvell C | |||
A354 | BC | 1/4~2-1/2 | 125 daqiqa | 109 daqiqa | 16 | 255-331 | 26-36 |
|
>2-1/2 | 115 daqiqa | 99 daqiqa | 16 | 235-311 | 22-33 | |||
BD | 1/4~2-1/2 | 150 daqiqa | 130 daqiqa | 14 | 311-363 | 33-39 |
| |
>2-1/2 | 140 daqiqa | 115 daqiqa | 14 | 293-363 | 31-39 | |||
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