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304 Stainless Steel Flange 16kg Flange Plain Welded Flange Stainless Steel Flange 5010 DN15-PN16
In the stainless steel tube standard, brinell hardness is the most
widely used, often to indentation diameter to express the hardness
of the material, both intuitive and convenient. However, it is not
suitable for hard or thin steel pipes.
Rockwell hardness
The Rockwell hardness test of stainless steel tube is the same as
brinell hardness test, which is the indentation test method. The
difference is that it measures the depth of the indentation.
Rockwell hardness test is a widely used method at present, among
which HRC is second only to Brinell hardness HB in steel pipe
standard. Rockwell hardness can be applied to determine from very
soft to very hard metal materials, it makes up for the Brinell
method is not, is simpler than brinell method, can be directly from
the hardness machine dial read hardness value. However, due to the
small indentation, the hardness value is not as accurate as
buchwald method.
Stainless steel export is an important part of China's export
economy, it plays an important role in stimulating China's economic
growth, but from the current situation of China's stainless steel
foreign trade, China's stainless steel export encountered greater
resistance.
Since last year, overseas frequently came to the stainless steel
casting products in China "double reverse" message, it has a great
influence for the stainless steel casting industry in China, and
exports are a good portion of the stainless steel industry
development in our country, in the development of the industry has
a huge market share, in the face of the economic downturn, the
development speed slow, Stainless steel industry development in our
country should continuously improve product quality, better the
development of overseas trade and against trade protectionism, the
products and environmental protection, energy resources, humanities
environment, enhance the competitiveness of the stainless steel
products, only in this way can the indefectible position in the
foreign trade.