Stainless steel capillary pipe / tube

According to the precision tube to produce brittle tempering temperature range, can be divided into low temperature temper brittleness and high temperature temper brittleness. The ductile brittle transition temperature is obviously increased when the martensite structure is obtained by quenching the brittle alloy steel with low temperature tempering at low temperature tempering at 250 ~ 400 ℃. Has been brittle precision tube can no longer use low temperature tempering heating method to eliminate, it is also known as "irreversible brittleness brittle". It mainly occurs in alloy steel and low alloy ultra-high strength precision pipe and other steel. The fractures of the brittle precision tubes are along the crystal fracture or along the crystal and quasi-cleavage mixed fracture. (1) Cementite in the low temperature tempering with flaky in the original austenite grain boundary precipitation, resulting in grain boundary embrittlement is closely related. (2) Impurity e...

Commonly used materials for the 10 #, 20 #, 35 #, 45 #, 20cr, 40Cr, 20CrMo ﹑ 16mn ﹑ 27simn ,201,304, 304L,316,316L,310s , high-quality carbon structural steel. Precision tube features Features 1. Smaller diameter. 2. High precision can do small batch production. 3. High-precision finished products, the surface quality is good. 4. Steel pipe cross-sectional area is more complex. 5. Steel pipe performance is superior, metal is relatively dense.   FOSHAN KUANYU STAINLESS STEEL CO.,LTD  whatsapp/ tel /wechat: +86 13288359365 email : kybxg163@163.com website: www.316pipe.en.alibaba.com