Properties and Applications
SUSXM7
SUSXM7 Japan SUS series stainless austenitic
stainless steel
Standard: Japan JIS standard
Features: addition of copper in 304 steel;
improved cold workability. SUSXM7 used for cold heading and other parts.
SUSXM7 correspond GB 0Cr18Ni9Cu3, low-carbon,
low nitrogen, sulfur, is deformed steel 304, high copper content, easy molding,
generally used for Allen, coach screws, self-tapping screws and other higher degree
of deformation of the product. It is similar in chemical composition 302HQ specification,
due to price reasons, it is the emergence of an alternative identity 302HQ, but
in actual use, there are still differences, a penny stock, mainly in the magnetic
stronger than the real 302HQ processability quite different in terms of small diameter,
such as when processing glasses small screws best to use real Nippon 302HQ material
[1] material. Of course, if the requirements are not very demanding, XM7 is a good
choice. Chemical composition and SUS302HQ main difference SUSXM7 on some trace elements,
but the main component of stainless steel wire from view, their specifications are
very similar, basically no difference. However, in actual use, the magnetic and
processing performance can be a judge, but this requires experience, if you want
to explicitly determine the best material to do testing. Because almost XM7 and
302HQ main ingredient, so many manufacturers will XM7 also called 302HQ.
SUS631
Japan SUS631 (17-7PH GB 0Cr17Ni7Al) is a
precipitation hardening stainless steel, high strength and hardness, fatigue, has
good corrosion resistance and formability, and when the temperature and little distortion,
this steel good performance, especially Application and aerospace fields, this particular
alloy is also suitable for other areas of high-strength, corrosion resistance requirements.
In the high temperature to 316
℃, the spring performance is still good. SUS631 used in
aerospace, chemical, petrochemical, paper and metal processing industry.
Data referring source:
http://baike.baidu.com/view/8334621.htm
http://baike.baidu.com/view/2839045.htm
|
