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| 牌號(hào) | X8Ni 9 |
| 歐標(biāo)鋼號(hào) | 1.5662 |
| 對(duì)應(yīng)標(biāo)準(zhǔn) | EN 10269-2013
規(guī)定高溫和/或低溫性能的緊固件用鋼和鎳合金 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties |
| 歸類 | 合金鋼 |
| 標(biāo)簽 | 調(diào)質(zhì)鋼 鎳合金鋼 |
| 密度 | 7.89 g/cm3 |
| 成分 | C | Si | Mn | P | S | Ni | Mo | V |
|---|---|---|---|---|---|---|---|---|
| 最小值 | - | - | 0.3 | - | - | 8.5 | - | - |
| 最大值 | 0.1 | 0.35 | 0.8 | 0.02 | 0.01 | 10 | 0.1 | 0.05 |
| 直徑 d mm |
熱處理或狀態(tài) |
抗拉強(qiáng)度 σb Mpa |
屈服點(diǎn) σs Mpa |
斷后伸長率或延伸率 δ % |
斷面收縮率 ψ % |
沖擊吸收能量 KV2 J |
|---|---|---|---|---|---|---|
| d≤40 | +N+NT( or +QT) | 640~840 | ≥490 | ≥18 | ≥50 | ≥70 |
40| +N+NT( or +QT) |
640~840 |
≥480 |
≥18 |
≥50 |
≥70 |
|
| d≤40 | +QT | 680~820 | ≥585 | ≥18 | ≥50 | ≥120 |
40| +QT |
680~820 |
≥575 |
≥18 |
≥50 |
≥120 |
|
| Material designation | Heat treatment condition | Diameter d mm | Minimum impact energy KV2inJ(ISO-V test piece) at a test temperature in°C of: | ||||||||||||||||
| Name | Number | -270 | -196 | -160 | -140 | -120 | -110 | -100 | -90 | -80 | -70 | -60 | -50 | -40 | -20 | 0 | +20 | ||
| X8Ni9 | 1.5662 | +N+NT(or +QT) | d≤75 | - | 40 | 45 | 50 | 50 | - | 60 | - | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
| +QT | d≤75 | - | 70 | - | - | 100 | - | 110 | - | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | ||
| Material designation | Heat-treatment symbol | Normalizing,quenching or solution annealing temperature °C | Type of cooling | Tempering or precipitation treatment (and time)°C | |
| Name | Number | ||||
| X8Ni9 | 1.5662 | +N+N+T | 880 to 930+770 to 830 | a | 540 to 600 |
| +QT | 770 to 830 | o,w | 540 to 600 | ||