Why do 16Mn seamless steel pipes need to be tested repeatedly in production?
The process of 16Mn seamless steel pipes from production to use is continuously tested repeatedly. Without a good test process, it is impossible to produce a more qualified product. 16Mn seamless steel pipes can only be effective when they are repeatedly tested during production. In general, manufacturers have to continuously test repeatedly during production. The common test methods and What are the steps? We are here to introduce the steps and methods of related experiments:
During the flattening test of 16Mn seamless steel pipe, if a sample of a rolled-length pipe or segmented pipe fails, a sample should be taken from the same end of the original 16Mn seamless steel pipe for retest. If it is qualified, the 16Mn seamless steel pipe shall be rejected, and another 20Mn seamless steel pipe shall be taken from the batch, and one end shall be sampled for re-inspection. If one of them still fails, the batch of 16Mn seamless steel pipes shall be sampled and re-inspected one by one. All 16Mn seamless steel pipes that fail the flattening test shall be rejected for acceptance. When the flattening test of a rolled length tube fails, the manufacturer decides to perform flattening test on its segmented pipe. If a flattened sample of a rolled length or segmented pipe fails, it shall be re-inspected on the same seamless steel pipe. If the re-inspection still fails, the 16Mn seamless steel pipe shall be rejected.
The main component of 16Mn seamless steel pipe is 16Mn, which has a relatively high hardness and has a wide range of uses. The technical requirements in the production and use process are relatively high, so repeated tests are required!
Tips: ASME SA106 Pipe is available in three grades of seamless pipe of varying strength, it was a great need of top project consultants, engineers, Oil & Gas Industry as based on several service conducted by different organization in the world that it is a big challenge to procure right A106 Pipe for complicated applications.
About ASTM A106 Gr B
ASTM A106 Gr B seamless pipes (also known as ASME SA106 GR B pipes) is a seamless carbon steel nominal pipe for high temperature use.The chemical composition of A 106Gr.B is as follows:
- C?0.25
- Mn=0.27-0.93
- P?0.035
- S?0.035
- Si?0.1
- Cr?0.4
- Cu?0.4
- Mechanical properties: ób?415?MPa, ós?240?MPa.
About ASTM A106 Gr C
ASTM A106 Gr C seamless pipes (also known as ASME SA106 GR C pipes) is a carbon-manganese steel pipe for high-temperature large-diameter boilers and superheaters. Its chemical composition is simple and similar to 20G carbon steel, but its carbon and manganese content is higher, so its yield strength is about 12% higher than that of 20G, and its plasticity and toughness are not bad. The steel has a simple production process and good cold and hot workability. Using it to replace 20G headers (economizer, water wall, low-temperature superheater and reheater header) can reduce the wall thickness by about 10%, which can save material costs, reduce welding workload, and improve headers The stress difference at start-up.
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