不锈钢制品用于家居装修中会给人一种时尚大气的感觉，而且实用性能很强，受到了众多家装消费者的青睐。有不少人有着这样的疑惑，都说不锈钢耐热，可是它有多耐热呢？
Stainless steel products used in home decoration will give people a sense of fashion atmosphere, and practical performance is very strong, has been favored by many Jiezhuang consumers. There are many people with such doubts, said stainless steel heat-resistant, but it has much heat it?
耐热性能是指高温下不锈钢仍能保持其优良的物理机械性能。不锈钢中碳的影响：碳在不锈钢中是强烈形成并稳。定奥氏体且扩大奥氏体区的元素。碳形成奥氏体的能力约为镍的30倍，碳是一种间隙元素，通过固溶强化可显著提高奥氏体不锈钢的强度。碳还可提高奥氏体不锈钢在高浓氯化物（如42%MgCl2沸腾溶液）中的耐应力耐腐蚀的性能。

Heat resistance refers to the high temperature stainless steel can still maintain its excellent physical and mechanical properties. The effect of carbon in stainless steel: carbon is strongly formed and stable in stainless steel. An element that determines austenite and expands austenite. The ability of carbon to form austenite is about 30 times of that of nickel, and carbon is a kind of interstitial element. The strength of austenitic stainless steel can be obviously improved by solution strengthening. Carbon can also improve the stress resistance and corrosion resistance of austenitic stainless steel in high concentrated chloride (such as 42%MgCl2 boiling solution).
但是，在奥氏体不锈钢中，碳常常被视为有害元素，这主要是由于在不锈钢的耐蚀用途中的一些条件下，碳可与钢中的铬形成高铬的Cr23C6型碳化合物从而导致局部铬的贫化，使钢的耐蚀性特别是耐晶间腐蚀性能下降。因此60年代以来新发展的铬镍奥氏体不锈钢大都是碳含量小于0.03%或0.02%超低碳型的。
However, in austenitic stainless steel, carbon is often regarded as a harmful element, which is mainly due to some conditions in the use of stainless steel in corrosion resistance, carbon can be formed Cr23C6 type carbon compound high chromium and chromium in steel resulting in local chromium depletion, the corrosion resistance of steel especially resistance to intergranular corrosion drop. Therefore, since 60s, the new development of chromium nickel austenitic stainless steel mostly carbon content less than 0.03% or 0.02%, ultra low carbon type.
可以知道随着碳含量降低，钢的晶间腐蚀敏感性降低，当碳含量低于0.02%才具有最明显的效果，一些实验珠光还指出，碳还会增大铬奥氏体不锈钢的点腐蚀分倾向。由于碳的有害作用，不仅在奥氏体不锈钢冶炼过和中应按要求控制尽量低的碳含量，而且在随后的热，冷加工和热处理等过程中也在防止不锈钢表面增碳，且免铬的碳化物析出。
You can know that with a decrease in the carbon content of steel intergranular corrosion sensitivity decreased, when the carbon content is lower than 0.02% has the most obvious effect, some experimental Pearl also pointed out that the point corrosion of carbon will increase the tendency of chromium austenitic stainless steel. Due to the detrimental effect of carbon, carbon content should be controlled as low as required not only in austenitic stainless steel and smelting, but also in the subsequent heat, to prevent the stainless steel surface carburizing in cold working and heat treatment process, and free of chromium carbide.
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