牌號 | GX40CrSi23 |
德國W-Nr. | 1.4745 |
對應(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 | 鐵素體型耐熱鑄鋼 最高工作溫度1050°C |
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 | |
GX40CrSi23 | 1.4745 | 26 | 11 | 5 | 1.5 | - | - | 1050 |
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 | 400 °C | 800°C | 1000°c | |||
GX40CrSi23 | 1.4745 | 7.6 | 18.8 | 0.50 | 12.0 | 14.0 | 16.0 |
Material | suitable fillet metal | Heat treatment | ||||
designation | number | Covered electrode (symbol) | Wire or rod (symbol) | Material number | prior to welding | after welding |
GX40CrSi23 | 1.4745 | 30 25 4 25 20 | X8Cr30 X12CrNi25-4 X12CrNi25-20 | 1.4773 1.4820 1.4842 | 預(yù)熱到700~800°C | 爐內(nèi)緩慢冷卻 |