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GX30CrNiSiNb24-24簡(jiǎn)介

牌號(hào)	GX30CrNiSiNb24-24
德國(guó)W-Nr.	1.4855
對(duì)應(yīng)標(biāo)準(zhǔn)	DIN 17465-1993 耐熱鑄鋼 Heat resisting steel castings - Technical delivery conditions
歸類	鑄鋼
標(biāo)簽	奧氏體型耐熱鑄鋼最高工作溫度1050°C

GX30CrNiSiNb24-24 化學(xué)元素成分含量(%)

成分	C	Si	Mn	P	S	Cr	Ni	Nb
最小值	0.25	0.5	-	-	-	23	23	1.2
最大值	0.4	2	1.5	0.035	0.03	25	25	1.8

碳當(dāng)量計(jì)算

GX30CrNiSiNb24-24 機(jī)械性能

產(chǎn)品	熱處理或狀態(tài)	抗拉強(qiáng)度 σ_b Mpa	屈服點(diǎn) σ_s Mpa	斷后伸長(zhǎng)率或延伸率 δ %	硬度 HBW
鑄鋼	鑄態(tài)	≥440①	≥230	≥5①	-

①適用于厚度t≤25mm的產(chǎn)品

Material		Den- sity, in g/cm³	Thermal con- ductivity, in W/K.m	Specific heat capacity at 20 °C, in J/g.K	Coefficient of linear thermal expansion, in 10^-6 /K, at a temperature between 20 °C and
designation	number	Den- sity, in g/cm³	Thermal con- ductivity, in W/K.m	Specific heat capacity at 20 °C, in J/g.K	400 °C	800°C	1000°c
GX30CrNiSiNb24-24	1.4855	8	14.6	0.50	17.0	18	18.5

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Material		1% creep limit after 10000 h, in N/mm², at a temperature, in °C, of						Maximum service temperature, in °C
designation	number	600	700	800	900	1000	1100	Maximum service temperature, in °C
GX30CrNiSiNb24-24	1.4855	-	80	46	22	7.5	-	1050