GX40CrSi17 1.4740 - DIN 17465-1993

牌号	GX40CrSi17
德国W-Nr.	1.4740
对应标准	DIN 17465-1993 耐热铸钢 Heat resisting steel castings - Technical delivery conditions
归类	铸钢
标签	铁素体型耐热铸钢最高工作温度900°C

GX40CrSi17 化学元素成分含量(%)

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

碳当量计算

GX40CrSi17 机械性能

产品	热处理或状态	抗拉强度 σ_b Mpa	屈服点 σ_s Mpa	断后伸长率或延伸率 δ %	硬度 HBW
铸钢	800～850 °C 退火	-	-	-	HB30: ≤300①

①铸态状态的铸件，最大硬度应以协议为准。

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

根据横截面尺寸，

预热到300~500°C

760~800°C

消除应力

近似对照表耐热铸钢和耐热合金铸件

GX40CrSi17 对应不同标准

注：数据仅供参考！如有疑问，请填写"我要纠错"！

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