| 化学式 |
-- |
W |
| 代码 |
-- |
-- |
| 主要材料 |
-- |
Tungsten |
| 主要材料纯度 |
% |
99.9 |
| 主要辅材 |
-- |
-- |
| 主要辅材成分 |
-- |
-- |
| 颜色 |
-- |
red |
| 密度 |
g/cm³ |
2 |
| 吸水率 |
% |
-- |
| 外观表证 |
-- |
-- |
| 维氏硬度 |
GPa |
-- |
| 抗折强度 |
Mpa |
-- |
| 弯曲强度 |
Mpa |
-- |
| 弯曲强度 |
Mpa |
-- |
| 抗压强度 |
Mpa |
-- |
| 断裂韧性 |
MPa m½ |
-- |
| 杨氏模量 |
GPa |
403 |
| 泊松比 |
-- |
-- |
| Abrasiveness Blast abrasion amount |
μm |
-- |
| 最高使用温度(氧化气氛) |
°C |
-- |
| 最高使用温度(保护气氛) |
°C |
-- |
| Thermal expansion coefficient RT~200°C |
*10^-6/°C |
-- |
| Thermal expansion coefficient RT~400°C |
*10^-6/°C |
-- |
| Thermal expansion coefficient RT~600°C |
*10^-6/°C |
-- |
| Thermal expansion coefficient RT~800°C |
*10^-6/°C |
-- |
| 热导率(室温) |
W/mK |
168 |
| Thermal conductivity 400°C |
W/mK |
-- |
| Thermal conductivity 800°C |
W/mK |
-- |
| Specific heat RT |
J/kg.K |
-- |
| Specific heat 400°C |
J/kg.K |
-- |
| Specific heat 800°C |
J/kg.K |
-- |
| Thermal Shock Resistance |
°C |
-- |
| Dielectric strength |
kV/mm |
-- |
| Volume resistivity 20°C |
Ω.cm |
-- |
| Volume resistivity 500°C |
Ω.cm |
-- |
| Dielectric loss 1MHz |
*10^-4 |
-- |
| Dielectric loss 3GHz |
*10^-4 |
-- |
| Dielectric constant 1MHz |
-- |
-- |
| Dielectric constant 3GHz |
-- |
-- |
| Liquid hydrochloric acid |
Loss |
Slightly melts in 100°C diluted or concentrated hydrochloric acid |
| Liquid hydrochloric acid (1) |
Loss |
no reaction |
| Liquid sulfuric acid |
Loss |
Slightly melts in heated diluted sulfuric acid melts in concentrated sulfuric acid |
| Liquid sulfuric acid (1) |
Loss |
no reaction in diluted sulfuric acid Melts slightly in concentrated sulfuric acid |
| Liquid nitric acid |
Loss |
Slightly melts |
| Liquid caustic soda (sodium hydroxide) |
Loss |
-- |
| Liquid caustic soda (sodium hydroxide) (1) |
Loss |
Slightly melts in solution Rapid reaction for molten salt |
| Gas air or oxygen |
Loss |
Slightly oxidizes (discoloration) In around 400°C starts to oxidizes |
| Gas air or oxygen (1) |
Loss |
in above 700°C tungsten trioxide forms and suddenly oxidizes |
| Gas vapor |
Loss |
promptly oxidizes in red heat state |
| Gas nitrogen |
Loss |
In about 2300°C and above forms a nitride |
| Gas carbon monoxide |
Loss |
In around 850°C and above embrittles In about 1000°C forms a |
| Gas carbon dioxide |
Loss |
forms about 1200°C forms an oxide |
| Gas hydrogen |
Loss |
no reaction |
| Gas htdrofluoric acid |
Loss |
forms a fluoride in room temperature |
| Gas chlorine |
Loss |
forms 250°C to 300°C forms a chlorine |
| Gas bromine |
Loss |
forms a bromide in red heat state |
| Gas iodine |
Loss |
forms a iodine in red heat state |
| Gas ammonia |
Loss |
Does not react in room temperature |
| Gas hydrogen sulfide |
Loss |
Surface reaction occurs while in red heat state |
| Solid body sulfur |
Loss |
Slightly reacts in room temperature |
| Solid body carbon graphite |
Loss |
from around 800°C starts to absorb and embrittles from 1400°C forms tungsten carbide |
| Permeability |
Km |
-- |
| Susceptibility |
Xm |
-- |
| 20%盐酸(置入72小时) |
WT Loss [mg/cm²/day] |
-- |
| 盐酸 20% (置入24小时) |
WT Loss [mg/cm²/day] |
-- |
| 20%浓度硫酸(置入72小时) |
WT Loss [mg/cm²/day] |
-- |
| 20%浓度硫酸(置入24小时) |
WT Loss [mg/cm²/day] |
-- |
| 61%浓度硝酸(置入72小时) |
WT Loss [mg/cm²/day] |
-- |
| 61%浓度硝酸(置入24小时) |
WT Loss [mg/cm²/day] |
-- |
| 85%浓度磷酸(置入72小时) |
WT Loss [mg/cm²/day] |
-- |
| 85%浓度磷酸(置入24小时) |
WT Loss [mg/cm²/day] |
-- |
| 20%浓度烧碱(置入72小时) |
WT Loss [mg/cm²/day] |
-- |
| 20%浓度烧碱(置入24小时) |
WT Loss [mg/cm²/day] |
-- |
| 47%浓度氢氟酸(置入72小时) |
WT Loss [mg/cm²/day] |
-- |
| 应用特性 |
-- |
-- |
| 备注 |
-- |
-- |
| Features & applications (cn) |
-- |
-- |
| Remarks (cn) |
-- |
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