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1. General Introduction Alloy 20, also known as 20Cb3, is an iron-based austenitic nickel alloy. It has useful corrosion resistance to oxidizing and medium reducing environments. The alloy also exhibits useful resistance to stress-cracking corrosion and pitting corrosion. Alloy 20 …

Recently, Metals-Piping has been supplying a set of Alloy 20 piping materials to an oil-refinery project in Czech. This project involves piping construction of the alkylation process facilities. Due to its exceptional corrosion resistance to sulfuric acid, Alloy 20 (UNS …

1. PMI test on Alloy 20 Elbows. The elbow specification: 90° elbow, long radius(L/R), 4″ SCH40 butt welding(BW), ASME B16.9. Materials: ASTM B366 WP20CB (UNS N08020/ 20Cb3/ Alloy 20). The PMI test was conducted by using handheld spectrometer which read: …

*The unit for modulus of elasticity is 106 psi; Temperature unit: °F. *All tabular values are in accordance with ASME BPVC Section II Part D Alloy 20 (UNS N08020). *Other physical properties of Alloy 20: poisson’s rate – 0.31; density …

1. Coefficient of Thermal Conductivity of Alloy 20(UNS N08020) *TC: the coefficient of thermal conductivity, Btu/hr-ft-°F. *Temp.: metal temperature, not exceeding. 2. Coefficient of Thermal Diffusivity of Alloy 20(UNS N08020) *TD: the coefficient of thermal diffusivity, ft2/hr. *Temp.: metal temperature, …

*YS1(yield strength of)：ASTM B462 Alloy 20 forgings, annealed; ASTM B463 UNS N08020 plate, annealed; ASTM B473 UNS N08020 bar, annealed; ASTM B729 Alloy 20 smls. pipe & tube, annealed; ASTM B464 UNS N08020 wld. pipe, annealed; ASTM B468 UNS N08020 …

*TS1(tensile strength of): ASTM B462 UNS N08020 forgings, annealed; ASTM B463 Alloy 20 plate, annealed; ASTM B473 Alloy 20 bar, annealed; ASTM B729 Alloy 20 seamless pipe & tube, annealed; ASTM B464 UNS N08020 welded pipe, annealed; ASTM B468 UNS …

The table below provides maximum allowable stress values at given temperatures for various Alloy 20 materials. All tabulated values are in accordance with ASME BPVC Section II Part D. *Temp.: metal temperature, not exceeding. *MAS1, MAS2, MAS3, MAS4: maximum allowable …

Alloy 20 is endorsed by relative ASME Boiler & Pressure Vessel Codes (BPVC). A variety of product forms and conditions of Alloy 20 (UNS N08020) are listed in below table which are applicable for corresponding ASME BPVC specifications and temperature …

Metals-Piping just finished a batch of Alloy 20 flanges for an Indonesian client: weld neck flanges, ASEM B16.5, Class 300 RF, 3″ SCH40/ 2″ SCH40/ 1-1/4″ SCH40. Material: ASTM B462 UNS N08020 forgings. Application: chemical processing involving 30% sulfuric acid. …

ASTM B463 Alloy 20 Plates(UNS N08020) for Mexico Metals-Piping has supplied 3 pieces of 1200mm(L) x 620mm(W) x 16mm(THK) Alloy 20 plates to a Mexican. The Alloy 20 plates are manufactured to ASTM B463, hot rolled and annealed. They are …

Alloy 20, UNS N08020, is also known as 20Cb-3, CN7M(castings), or DIN 2.4660. It has exceptional corrosion resistance to sulfuric acid and has good performance in handling pitting corrosion, crevice corrosion, intergranular corrosion, and stress-cracking corrosion. Meanwhile, its cost is comparatively …