Sharing of process inspection methods for stainless steel seamless elbows
Wenzhou Licheng Steel Co., Ltd. is a modern enterprise specializing in the production of stainless steel pipes, pipe fittings, and flange products. We have professional technical strength and advanced team management skills. Brands include: 304.304L.304H.321.321H.316.316L.317L.310S.347H, etc. Pipe size range (6mm-580mm)*OD (2mm-40mm)WT*4000-15000mm) length.
What are the common methods for process inspection of stainless steel seamless elbows? Let us get to know each other:
① Pipe bending test: It is a test in which the specimen is bent to a normal level at the grooved bend center to check the elbow’s ability to withstand bending plastic deformation and reveal its defects.
② Pipe flattening test: It is a test to flatten the metal pipe to normal size, check its plastic deformation ability and reveal its defects.
③Pipe expansion test: This is a test in which the center of a regular taper is pressed into one end of a metal pipe, allowing the diameter to expand uniformly to normal standards, to check the ability of the elbow to expand and plastically deform radially and to reveal its defects.
④ Repeated bending test: clamp one end of the sample. A test that performs 90-degree repeated reverse bends on a cylindrical surface with a specified radius to test the metal’s ability to withstand repeated bends and reveal its flaws.
⑤ Upsetting test: Hammer or forge standard specimens. A test to examine the ability of alloy steel elbows to withstand upsetting plastic deformation at room temperature or hot conditions and to demonstrate its defects. The upsetting test conducted at room temperature is called the room temperature upsetting test, also called the cold upsetting test. The upsetting test conducted under hot conditions is called hot upsetting test;
⑥ Pipe curling test: This is a test in which the top center of a regular rectangular shape is pressed into one end of a metal pipe, so that the pipe wall is evenly rolled to a regular size, and the ability of the pipe wall to withstand plastic deformation of the outer roll is tested and its defects are revealed;
⑦Pipe hydraulic test: A test in which alloy steel elbow manufacturers fill the metal pipe with water or specified liquid and withstand specified pressure within a corresponding period of time to check the quality and strength of the elbow and reveal its defects;
⑧Hardenability: That is, the ability of steel to withstand quenching after austenitization, or the tendency of austenite to change to martensite, which is often explained by the depth of the hardened layer.
⑨Machinability: The performance of elbow materials when processed with cutting tools. When cutting or grinding, it is easy to achieve relatively good surface processing accuracy, and the tools are not easy to wear, the chips are easy to fall off, and the cutting force is small, etc., which all indicate that the metal material has good cutting processability.
⑩Bending test: It is a test that uses a standard bending center to bend the sample to a specified level to test the ability of the metal to withstand bending plastic deformation and reveal its defects.
Sharing of process inspection methods for stainless steel seamless elbows
Wenzhou Licheng Steel Co., Ltd. is a modern enterprise specializing in the production of stainless steel pipes, pipe fittings, and flange products. We have professional technical strength and advanced team management skills. Brands include: 304.304L.304H.321.321H.316.316L.317L.310S.347H, etc. Pipe size range (6mm-580mm)*OD (2mm-40mm)WT*4000-15000mm) length.
What are the common methods for process inspection of stainless steel seamless elbows? Let us get to know each other:
① Pipe bending test: It is a test in which the specimen is bent to a normal level at the grooved bend center to check the elbow’s ability to withstand bending plastic deformation and reveal its defects.
② Pipe flattening test: It is a test to flatten the metal pipe to normal size, check its plastic deformation ability and reveal its defects.
③Pipe expansion test: This is a test in which the center of a regular taper is pressed into one end of a metal pipe, allowing the diameter to expand uniformly to normal standards, to check the ability of the elbow to expand and plastically deform radially and to reveal its defects.
④ Repeated bending test: clamp one end of the sample. A test that performs 90-degree repeated reverse bends on a cylindrical surface with a specified radius to test the metal’s ability to withstand repeated bends and reveal its flaws.
⑤ Upsetting test: Hammer or forge standard specimens. A test to examine the ability of alloy steel elbows to withstand upsetting plastic deformation at room temperature or hot conditions and to demonstrate its defects. The upsetting test conducted at room temperature is called the room temperature upsetting test, also called the cold upsetting test. The upsetting test conducted under hot conditions is called hot upsetting test;
⑥ Pipe curling test: This is a test in which the top center of a regular rectangular shape is pressed into one end of a metal pipe, so that the pipe wall is evenly rolled to a regular size, and the ability of the pipe wall to withstand plastic deformation of the outer roll is tested and its defects are revealed;
⑦Pipe hydraulic test: A test in which alloy steel elbow manufacturers fill the metal pipe with water or specified liquid and withstand specified pressure within a corresponding period of time to check the quality and strength of the elbow and reveal its defects;
⑧Hardenability: That is, the ability of steel to withstand quenching after austenitization, or the tendency of austenite to change to martensite, which is often explained by the depth of the hardened layer.
⑨Machinability: The performance of elbow materials when processed with cutting tools. When cutting or grinding, it is easy to achieve relatively good surface processing accuracy, and the tools are not easy to wear, the chips are easy to fall off, and the cutting force is small, etc., which all indicate that the metal material has good cutting processability.
⑩Bending test: It is a test that uses a standard bending center to bend the sample to a specified level to test the ability of the metal to withstand bending plastic deformation and reveal its defects.