The characteristics of different material of
stainless steel spring 304 stainless steel spring: made of 304 stainless steel spring is also the domestic heavy usage of stainless steel spring, 304, is a kind of stainless steel, chromium nickel into mirror, bright surface and fog face three types.
By name we can see a mirror is bright, like a mirror, is especially suitable for used as medical equipment spring and crafts spring, because the mirror stainless steel is not easy sticky oil, easy to clean.
Compared to shiny stainless steel mirror surface stainless steel spring, surface smoothness is slightly almost, if you want to for medical devices to the spring, need in spring forming again after polishing.
* is to use a lot of fog after surface of stainless steel, the stainless steel, because of lower prices relative to the first two, mechanical properties and anticorrosive ability are the same, so, widely applied to various needs rust of the spring.
It is recommended to use temperature was minus
40°~120°（
More than 120 °, is not recommended or mechanical performance will be down)
Made of 302 stainless steel spring: 302 stainless steel spring usage in abroad is very big, is greater than 304.
In terms of mechanical properties, the effect is better than 304 stainless steel spring, but rust resistance because of different content of elements is slightly less than 304.
But overall, it is much, a lot of cases, made of 302 and 304 if demand elasticity is not particularly high precision, can be replaced with another.
It is recommended to use temperature was minus
40°~120°（
More than 120 °, is not recommended or mechanical performance will be down)
It is recommended to use temperature was minus
40°~120°（
More than 120 °, is not recommended or mechanical performance will be down)
。
301 stainless steel spring: 301 stainless steel spring is equivalent to 'piano wire of stainless steel.
Tension and fatigue sex is far higher than the previous two, very suitable for when the conventional stainless steel spring such as material of 302 ~ 304 spring can't meet the demand of force value when used.
It is recommended to use temperature was minus
40°~120°（
More than 120 °, is not recommended or mechanical performance will be down)
316 stainless steel spring: 316 stainless steel spring compared with other types of stainless steel, more suitable for use in such as water, better than any other brand of stainless steel corrosion resistance.
At the same time with low magnetic properties.
It is recommended to use temperature was minus
40°~120°（
More than 120 °, is not recommended or mechanical performance will be down)
631 stainless steel spring: 631 stainless steel spring austenitic precipitation-hardening stainless steel is a kind of half, in the field of machinery and medical use is more, have a strong ability to resist corrosion and resilient, with high resistance to fatigue properties.
Especially the high temperature resistant ability, 631 spring is different from other kinds of stainless steel, can be in -
Use between 40 ~ 380 °, many were used as the hot spring steel.
130 m non-magnetic stainless steel spring: 130 m non-magnetic stainless steel spring with weak magnetic, suitable for use in electric power, instrument to use.
No not * excluding magnetic magnetic spring.
Steel is magnetic.
* after the stainless steel will be magnet attracted not judge whether stainless steel non-magnetic basis, is a magnet to absorb the stainless steel is the idea of stainless iron is wrong.
When cold, wire produces friction, will be attach more or less, magnetic stainless steel * big ingredient is the iron content of steel, is iron will be attracted by the magnet.
Another way is made of stainless steel spring through more than 800 ° high temperature tempering, eliminate his magnetic stainless steel structure will change at the same time, thus reach the characteristics of material itself, so, if you want to choose non-magnetic spring, it must be 130 m stainless steel spring.
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