The bending of a metal pipe means bending a full-section metal straight pipe around a specified radius and a grooved bend until the bending angle reaches the value specified by the relevant product standard.
The test method is as follows:
1. The test should generally be carried out at a room temperature ranging from 10 ° C to 35 ° C. For tests requiring control under controlled conditions, the test temperature shall be 23 ° C ± 5 ° C.
2. Bend the tube specimen without the filler by the bending test machine. During the test, ensure that the bending deformation section of the specimen is in close contact with the bending of the metal tube until the specified bending angle is reached.
3. When performing the bending test of the welded pipe, the position of the weld bead relative to the curved plane shall comply with the requirements stipulated by the relevant product standards. If no specific requirements are specified, the weld shall be placed at 90° to the curved plane. The position of the curved neutral line.
4. The description of the bending test results should be based on the requirements of the relevant product standards. When not specified in the product standard, in the absence of a magnifying glass, if there is no visible crack, it should be assessed as qualified.
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Stainless Steel (Stainless Steel) is referred to as acid-resistant stainless steel, resistance of air, steam, water and other weak corrosive medium or stainless steel having resistance as stainless steel; and the resistance to chemical corrosion medium (acid, alkali, salt and other chemical leaching pitting) corrosion of steel known as acid-resistant steel. As the two differences in the chemical composition of leaving their corrosion resistance is different from ordinary stainless steel general impatience chemical corrosion, and acid-resistant steel are generally of a stainless steel.
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About us
Shengping Safety Protection Locks Manufactur, create to set up in 1989, is an enterprise specialized in the manufacture of different kinds of locks. We have obtained quality system authentications as ISO9001-2000 International Quality Control System Attestation,and we have obtained self-operation export and import right etc. According to many years of producing and R&D experience, we produce locks more than 100 kinds of specification with different kinds of raw materials & styles. Moreover, we can do customized work as per clients`designs.
Bearing the sense of [quality gets victory", our products are popular in domestic market; and with the fame of our product`s [good quality and best prices", we have increased our export all over the world. Now our product lines are mainly for export.
We tightly hold the quality control system, follow the contract, and keep faith and valued mutual benefit. We sincerely welcome customers home and abroad and our craft brothers to develop and flourish the locks market.
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