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牌號 F436 Type 3
對應(yīng)標(biāo)準(zhǔn) ASTM F436/436M-2019
淬火鋼墊圈的標(biāo)準(zhǔn)規(guī)范
Hardened steel washers inch and metric dimensions
歸類 合金鋼
標(biāo)簽 耐候鋼
F436 Type 3 化學(xué)元素成分含量(%)
  成分 Si P S Cr Ni Cu
Heat analysis 最小值 0.15 - - 0.45 0.25 0.25
最大值 0.35 0.04 0.05 0.65 0.45 0.45
  成分 Si P S Cr Ni Cu
Product analysis 最小值 0.13 - - 0.42 0.22 0.22
最大值 0.37 0.045 0.055 0.68 0.48 0.48
F436 Type 3 機(jī)械性能
硬度
HBW
Through hardened washers HRC
38~45
zinc-coated by the hot-dip HRC
26~45
① Through hardened washers shall have a hardness of 38 to 45 HRC, except when zinc-coated by the hot-dip process, in which case they shall have a hardness of 26 to 45 HRC.
② Carburized washers shall be carburized to a minimum depth of 0.015 in. (inch series) or 0.38 mm (metric series) and shall have a surface hardness of 69 to 73 HRA or 79 to 83 HR15N, except when zinc-coated by the hot-dip process, in which case they shall have a hardness of 63 to 73 HRA or 73 to 83 HR15N.
③ Carburized and hardened washers shall have a minimum core hardness of 30 HRC or 65 HRA.
F436Type3 對應(yīng)不同標(biāo)準(zhǔn)
1 ASTM F436/436M-2016 淬火鋼墊圈的標(biāo)準(zhǔn)規(guī)范
2 ASTM F436/436M-2019 淬火鋼墊圈的標(biāo)準(zhǔn)規(guī)范
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