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X33CrNiMnN23-8簡(jiǎn)介

牌號(hào) X33CrNiMnN23-8
歐標(biāo)鋼號(hào) 1.4866
對(duì)應(yīng)標(biāo)準(zhǔn) EN 10090-1998
內(nèi)燃機(jī)用氣門鋼和合金
Valve steels and alloys for internal combustion engines
歸類 合金鋼
性能 耐腐蝕
標(biāo)簽 奧氏體鋼
X33CrNiMnN23-8 化學(xué)元素成分含量(%)
成分 C Si Mn P S Cr Ni Mo N W
最小值 0.28 0.5 1.5 - - 22 7 - 0.25 -
最大值 0.38 1 3.5 0.045 0.03 24 9 0.5 0.35 0.5
碳當(dāng)量計(jì)算
X33CrNiMnN23-8 機(jī)械性能
條件 試驗(yàn)溫度 熱處理或狀態(tài)
抗拉強(qiáng)度
σb
Mpa 		屈服點(diǎn)
σs
Mpa 		斷后伸長(zhǎng)率或延伸率
δ
% 		斷面收縮率
ψ
% 		硬度
HBW
鋼材 室溫 Controlled cooled ≈1250 ≤360
鋼材 室溫 Quenched at 1000°C to 1100°C ≈1200 ≤360
鋼材d≤40 室溫 +AT +P 850~1100 ≥550 ≥20 ≥30 HRC≥25*
鋼材 500°C +AT +P ≥600 ≥270
鋼材 550°C ≥570 ≥250
鋼材 600°C ≥530 ≥220
鋼材 650°C ≥470 ≥210
鋼材 700°C ≥400 ≥190
鋼材 750°C ≥340 ≥180
鋼材 800°C ≥280 ≥170
① +QT = quenched and tempered; +AT = solution annealed; +P = precipitation hardened；+A=Soft annealed *Austenitic grades X55CrMnNiN20-8 to X33CrNiMnN23-8 may show hardness values which cannot be converted into tensile strength
values acording to the standard tables commonly used in laboratories. Therefore, in cases of dispute only the tensile strength value
shall be considered as valid.
近似對(duì)照表 奧氏體型耐熱鋼
中國(guó) 美國(guó) 國(guó)際標(biāo)準(zhǔn)組織 歐標(biāo)
GB SAE ISO EN 數(shù)字牌號(hào)
33Cr23Ni8Mn3N
23-8N 		EV16 X33CrNiMnN 23-8 X33CrNiMnN 23-8 1.4866
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