ASTM B729 Nickel Alloy N08020 Alloy20 Seamless Tubes Pipes Nickel Alloy20 DIN 17751 2.4660 Tubing piping
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Type of Material Grade:
UNS: N08020
EN Number: EN 10216-5 2.4660
EN Name: NiCr20CuMo
W.Nr.: EN 10216-5 2.4660
DIN: 17751
Alloy 20
Registered label:icrofer 3620Nb Carpenter 20 and Incoloy 20
Introduce:
Alloy 20 Pipe ASTM B729 N08020 DIN 17751 2.4660 is a high-corrosion resistant alloy, which shows very good resistance to phosphoric acid, nitric acid, sulfuric acid in chloric media. DIN 17751 2.4660 Alloy 20 is chiefly used in the chemical industry, apparatus engineering and heat exchanger.
Alloy 20 Carpenter 20, is a nickel-iron-chromium austenitic alloy that was developed for maximum resistance to acid attack, specifically sulfuric acid. This superalloy has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric, and nitric acids. It also contains niobium for stabilization against sensitization and resultant intergranular corrosion.
Carpenter 20 combines excellent corrosion resistance with elevated mechanical properties and relatively easy fabrication. Although originally designed for use in sulfuric acid related industries, Alloy 20 is now a popular choice for a wide variety of industries including the chemical, food, pharmaceutical, and plastics industries. In addition, this superalloy is used in heat exchangers, mixing tanks, metal cleaning and pickling equipment, and piping.
There has long been a debate on whether Carpenter 20 is a stainless steel or a nickel alloy because the nickel content is right on the border of defining it as one way or the other. So, depending on who you talk to this alloy may be referred to as alloy 20 Stainless Steel or as a nickel alloy. Either way it is still great for corrosion resistance.
ASTM B729 Alloy 20 N08020 Nickel Alloy Tubing Tubes Pipe have a good resistance properties to pitting and crevice corrosion and good resistance to intercrystalline corrosion, stress corrosion.
Characteristics of Alloy20 N08020
Excellent resistance to chloride stress corrosion cracking
Excellent mechanical properties and fabricability
Minimal carbide precipitation during welding
Excellent in resisting corrosion to hot sulfuric acid
Chemical Composition:
Table1-1.ASME SB 729 N08020 Alloy 20 Pipe Chemical Composition
Alloy |
% |
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
Cu |
Nb+Ta |
Fe |
ASME SB 729 N08020 |
min. |
- |
- |
- |
- |
- |
32 |
19 |
2 |
3 |
8×C |
Rest |
max. |
0.07 |
2 |
0.045 |
0.035 |
1 |
38 |
21 |
3 |
4 |
1 |
|
Table1-2.DIN 17744 2.4660 Alloy 20 Tube Chemical Composition
Alloy |
% |
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
Cu |
Nb+Ta |
Fe |
ASME SB 729 N08020 |
min. |
- |
- |
- |
- |
- |
32 |
19 |
2 |
3 |
8×C |
Rest |
max. |
0.07 |
2 |
0.025 |
0.015 |
1 |
38 |
21 |
3 |
4 |
1 |
|
Mechanical Properties:
Table2-1.ASME SB 729 N08020 Alloy 20 Pipe Mechanical Properties
Alloy |
Tensile strength |
Yield strength
Rp0. 2N/mm² |
Elongation in 2in. (50.8mm) |
ASME SB 729 N08020 |
80 (550) |
35 (240) |
30.0 |
Table2-2.DIN 17751 2.4660 Alloy 20 Pipe Mechanical Properties
Material Grade |
|
Tensile Strength |
Yield Strength |
Yield Strength |
Elongation |
Brinell Hardness |
|
max |
Approximately |
||||||
Alloy 20 2.4660 |
Annealed |
550 |
240 |
270 |
40 |
220 |
- |
Alloy 20 UNS N08020 Density: 8.10g/cm³
Mainly Standard Specification of TINSI-STEEL Pipe and Tube
ASTM B 464 N08020 Alloy 20 Pipes tubes tubing piping
ASME SB 729 N08020 Alloy 20 Pipes tubes tubing piping
ASME SB 468 N08020 Alloy 20 Pipes tubes tubing piping
ISO 6207
DIN 17744 17750 17751 17752 17753 2.4660
Table3.Major Specification standard
Standards |
Desciption |
ASTM A182 |
Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service |
ASTM A240 |
Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications |
ASTM B366 |
Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings |
ASTM B463 |
Standard Specification for UNS N08020 Alloy Plate, Sheet, and Strip |
ASTM B464 |
Standard Specification for Welded UNS N08020 Alloy Pipe |
ASTM B468 |
Standard Specification for Welded UNS N08020 Alloy Tubes |
ASTM B729 |
Standard Specification for Seamless UNS N08020, UNS N08026, and UNS N08024 Nickel-Alloy Pipe and Tube |
DIN 17744 (2002/09) |
nickel-forgeable alloy with molybdenum and chrome |
DIN 17750 (2002/09) |
ribbons and sheet metal out of nickel with nickel-wrought alloy properties |
DIN 17751 (2002/09) |
tubes out of nickel with nickel-wrought alloy properties |
DIN 17752 (2002/09) |
rod made from nickel with nickel-wrought alloy properties |
DIN 17753 (2002/09) |
wire out of nickel with nickel-wrought alloy properties |
VdTÜV / Werkstoffblatt 432/1 |
extremely corrosion resistant nickel based alloy, niCr21Mo, material-nr. 2.4858 ribbon, sheet metal |
VdTÜV / Werkstoffblatt 432/2 |
432/2 extremely corrosion resistant nickel based alloy, NiCr 21 Mo, material-nr. 2.4858 seamless pipe |
VdTÜV / Werkstoffblatt 432/3 |
extremely corrosion resistant nickel based alloy, NiCr 21 Mo, material-nr. 2.3858 rod steel, forging |
At TINSI-STEEL Stainless Tubes, quality management begins way ahead of any production step.
From the selection of raw material suppliers up to the final quality tests in our own factory we thoroughly evaluate, test and control our products and processes, aiming at continuous improvements. For in process and acceptance inspection, the quality departments at the individual manufacturing centers have state of-the-art equipment at their disposal including mechanical workshops, tensile and impact testing machines, chemical laboratories for corrosion tests, equipment for hardness testing and metallographic inspection.We also have extensive facilities for non-destructive testing, including ultrasonic, eddy current, hydrostatic, positive mate- rial identification and dye penetrant testing.
If your company needs tubing, you can rely on TINSI company. Thanks to our precision engineered manufacturing procedures, we easily and effectively respond to our customers' requirements, no matter how stringent they may be. Innovations in processes allow us to continually expand the range of product solutions. TINSI-STEEL engineers closely follow each phase of production and testing to ensure nickel alloy seamless tubes pipes of superior performance.
Contact: Hyman.C
Phone: 15825401620
Tel: +86-0577 56666518
Email: info@tinsi-steel.cn
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