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Current location: Precision pipe factory > 20 10 precision tube >
20% precision tube Market
20% precision tube Market
Source: youtube2d.com Release date: 10:06:36, March 18, 2019 Number of hits:

 20% precision tube Market

product texture of material Place of Origin Specifications
20# Precision tube product 20# Shandong 273*30
20# Precision tube 20# Shandong 38*4
20# Precision tube 20# Shandong 45*7
20# Precision tube 20# Shandong 1000*100
20# Precision tube 20# Shandong 426*60
20# Precision tube 20# Shandong 457*24
20# Precision tube 20# Shandong 426*22

Chemical composition of seamless pipe
Carbon C: 0.17-0.24 "Silicon Si: 0.17-0.37 manganese Mn: 0.35-0.65 sulfur s: 0.035 phosphorus P: 0.035 CR Cr: 0.25 Ni Ni: 0.25 Cu Cu: 0.25
Mechanical properties of 20 ? seamless pipe:
tensile strength B (MPA): 410 (42) yield strength S (MPA): 245 (25) elongation 5 (%): 25 reduction of area (%) 5, hardness: without heat treatment, 156hb, sample size: sample size: 25mm
Heat treatment specification and microstructure of seamless pipe
Heat treatment specification: normalizing, 910 , air cooling. Microstructure: ferrite + pearlite.
Delivery status of seamless pipe: delivery without heat treatment or heat treatment (annealing, normalizing or high temperature tempering). If the heat treatment condition is required for delivery, it shall be indicated in the contract, otherwise, it shall be delivered without heat treatment.
The weight calculation formula of seamless pipe is as follows:
[(outer diameter wall thickness) * wall thickness] * 0.02466 = kg / M (meter weight).

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