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Alloy20

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Find below the search results for the material you've specified. Please note here this information is NOT to be used for design purposes, and in no event shall MSO be liable for any damages arising from the misuse of this information
What alloys does SSSS Groups supply? Below is a comprehensive list of our alloys arranged by type. More detailed information can be found on each alloys specific page. All of our products are purchased to normal industry standards and come with material test reports (MTR) also known as material certifications. (MTR) also known as material certifications. (MTR) also known as material certifications.
What product forms are available?
  • Bar
  • Plate
  • Sheet
  • Pipe
  • Pipe Fittings
  • Flanges
  • Tube
  • Weld Wire

Stainless Steel Alloy 20

Related Metals:
  • Carpenter 20 CB 3(tm)
  • Nicrofer 3620 Nb(tm)
  • Carlson Alloy C20(tm)
  • AL 20(tm)
  • Nickelvac 23(tm)

Specifications:
  • AISI 664
  • ASTM B366
  • ASTM B463
  • ASTM B464
  • ASTM B468
  • ASTM B471
  • ASTM B473
  • ASTM B474
  • ASTM B475
  • ASTM B729
  • DIN 2.4660
  • UNS N08020

Chemistry Data
  • Carbon : 0.07 max
  • Chromium : 19 - 21
  • Copper : 3 - 4
  • Iron : Balance
  • Manganese : 2 max
  • Molybdenum : 2 - 3
  • Nickel : 32 - 38
  • Phosphorus : 0.045 max
  • Silicon : 1 max
  • Sulphur : 0.035 max

General Information principal Design Features
This alloy is a columbium stabilized material that combines excellent corrosion resistance with elevated mechanical properties and relatively easy fabrication. It particularly excels in resisting corrosion to hot sulfuric acids when compared to convention
Applications Good availability at both the mill and distributor levels have made this a popular choice for a wide variety of applications. Included among these are: equipment for the manufacture of synthetic rubber, plastics, organic and heavy chemicals, pharmaceutica .
Machinability Superior finishes may be obtained using set-up and process speeds and feeds normally employed in austenitic stainless steels such as 316 and 317. Slow speeds and heavy, constant feeds are the rules in working this alloy. Forming To obtain maximum ductility, heat material to 2100 F(1149 C). Understand, however, that this process will adversely affect the stability of the material. Without this process, the material can be satisfactorily formed albeit with a high work hardening rat
Corrosion Resistance This alloy was designed primarily for resistance to attack by sulfuric acid solutions. Its high levels of Chromium, Nickel, Molybdenum and Copper, however, give it excellent resistance to pitting, stress corrosion cracking and intergranular corrosion. The
Welding Most commonly used welding methods with the exception of oxyacetylene welding have been successfully employed with this alloy. The presence of columbium tends to minimize the precipitation of carbides in the heat affected zone, so the material may, in mos
Forging Soak thoroughly at 2100-2250 F(1149-1232 C). Re-heat when temperature drops below 1800 F(982 C). After forging, reheat and soak completely at 1725-1850 F(941-1010 C) and quench rapidly in water or oil.
Hot Working This alloy can be successfully hot formed using forces similar to those required by austenitic stainless steels.
Cold Working This alloy can be successfully cold formed using all common practices. Its elevated strength may require higher forming pressures.
Annealing Soak thoroughly at 1725-1850 F(941-1010 C), water quench.
Hardening This material may only be hardened by cold work.
Physical Data
  • Density (lb / cu. in.) : 0.292
  • Specific Gravity : 8.055
  • Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) : 0.12
  • Electrical Resistivity (microhm-cm (at 68 Deg F)) : 651
  • Poissons Ratio : 0.31
  • Magnetic Permeability : 1.002
  • Modulus of Elasticity Tension : 28

Mechanical Data
MSO currently has no data available for this grade.


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