tempered steel

基本解释

Mechanical properties of normalized Q460E could reach the requirement of some medium carbon quenched and tempered steel.
Q460E钢正火可以达到某些中碳调质钢的力学性能要求。
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Being compared with the normalized steel, the quenched and tempered steel can led to a joint with higher strength and toughness.
正火态与调质态母材相比，后者可得到强韧性较高的接头。
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The evaluation of measuring uncertainty in metallic material brinell hardness test is studied by testing the hardness of the45quenched and tempered steel.
以45#调质钢硬度试验为例，研究了金属材料布氏硬度试验中测量不确定度的评定。

Early chisels made out of flint that date back 10, 000 years have been discovered, while more modern incarnations are made out of tempered steel.
FORBES: Magazine Article
It has the penetrative force of a piece of heavy industrial equipment, something with a diamond bit or tempered-steel blades.
NEWYORKER: Magda Mandela
President Nursultan Nazarbayev, a former Soviet official, has ruled with a tempered-steel grip since independence in 1991 by focusing on the economy--Kazakhstan's GDP last year jumped 8.7%--and opening doors to outside investors.
FORBES: Power Putsch