GX40CrSi17 1.4740 - DIN 17465-1993

牌号	GX40CrSi17
德國W-Nr.	1.4740
對應标準	DIN 17465-1993 耐熱鑄鋼 Heat resisting steel castings - Technical delivery conditions
歸類	鑄鋼
标簽	鐵素體型耐熱鑄鋼最高工作溫度900°C

GX40CrSi17 化學元素成分含量(%)

成分	C	Si	Mn	P	S	Cr
最小值	0.3	1	0.5	-	-	16
最大值	0.45	2.5	1	0.035	0.03	18

碳當量計算

GX40CrSi17 機械性能

產品	熱處理或狀态	抗拉強度 σ_b Mpa	屈服點 σ_s Mpa	斷後伸長率或延伸率 δ %	硬度 HBW
鑄鋼	800～850 °C 退火	-	-	-	HB30: ≤300①

①鑄态狀态的鑄件，最大硬度應以協議為準。

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
GX40CrSi17	1.4740	7.7	18.8	0.50	12.5	13.5	-

Material

suitable fillet metal

Heat treatment

designation

number

Covered electrode (symbol)

Wire or rod
(symbol)

Material number

prior to welding

after welding

GX40CrSi17

1.4740

22 12

X8Cr18 X8CrTi18 X12CrNi22-12

1.4015 1.4502 1.4829

根據橫截面尺寸，

預熱到300~500°C

760~800°C

消除應力

近似對照表耐熱鑄鋼和耐熱合金鑄件

GX40CrSi17 對應不同标準

注：數據僅供參考！如有疑問，請填寫"我要糾錯"！

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
GX40CrSi17	1.4740	22	9	3.5	1	-	-	900