Analysis of the causes of pipeline quality issues
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What are the causes of pipeline quality issues? Analysis of possible reasons: 15GrMo, diameter 508, thickness 20
The external quality of the pipe fittings is poor, coupled with long-term corrosion
The pipe material is not uniform; it is necessary to choose a reputable manufacturer when making purchases
The wall thickness is uneven, with erosion-induced thinning; in addition, the steel elbow may have cracks formed during rolling
4.5 MPaG steam, around 450°C
For steam at 4.5 MPaG and at around 450°C, 15GrMo tubing is used; refer to the material selection guidelines specified in HGT 20580-20585-2011
Or GB50316—2008 Code for Design of Industrial Metal Piping, provisions for the selection of piping materials