Construction Materials for High-Pressure Apparatus
The choice of materials for use in high-pressure apparatus depends on size, operating temperature, cost and availability as well as the more obvious factors of strength and machinability. The most commonly used over the whole pressure range up to several hundred kilobars are a number of alloy steels and cemented tungsten carbide. The mechanical properties of steel vary enormously with composition and heat treatment and hence make it the most versatile material. In comparison tungsten carbide has only limited use but is essential where the highest pressures are to be generated. The remainder of this chapter will be concerned mostly with the properties of steels.
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