Alloy 20 pipe

  • Home
  • Alloy 20 pipe
Alloy 20 pipe
What is Alloy 20 pipe ?

Alloy 20 has chromium, nickel & iron in its composition and shows excellent corrosion resistance in different aggressive chemical environments. The Alloy 20 pipe material is stabilized by niobium and thus, can resist intergranular corrosion. They can also resist chloride and sulfuric acid stress corrosion cracking. They have copper in the alloy which enhances the general corrosion resistance properties. The 20CB-3® annealed pipe can withstand different types of corrosion like pitting and crevice. Due to all these properties, the WNR 2.4660 square pipe can be found in pickling equipment, heat exchangers, etc.

The INCOLOY® alloy 20 round pipe can be formed by hot or cold working with traditional methods. Hot forging is done within the temperature range of 2100-2250 °F but it should be controlled properly. The alloy 22 is then annealed at the heating temperature of 1725 and 1850 °F for min 30 minutes/ inch thickness. This is followed by colling the material with a water quench. The heat treatment on the UNS N08020 welded pipe depends on the specific mechanical properties required by an application.

Table of content

According to ASTM B729, we are the supplier of alloy 20 seamless pipe in India with the lowest price, Compare alloy 20 vs SS316

What is Alloy 20 vs SS316?
  • The welding alloy 20 pipe material is suitable for sulfuric acid environments whereas SS316 is generally used in general corrosive applications.
  • Alloy 20 is a better choice for acidic media than 316 grade.
  • 20 stainless steel pipe can better resist chloride ion related stress corrosion cracking than ss 316.
  • Alloy 20 is preferred for higher temperature applications.
  • SS316 is more affordable than alloy 20.

We are alloy 20 tube stockist who stock a variety of sizes ranging from 1/8" to 6" OD and length from 6 to 12 meter or custom in Mumbai, see alloy 20 stainless steel pipe standards

UNS N08020 pipe

UNS N08020 pipe

Alloy 20 seamless pipe

Alloy 20 seamless pipe

WNR 2.4660 tubing

WNR 2.4660 tubing

What is alloy 20 stainless steel pipe standards?

The alloy 20 stainless steel pipe standard specifications are ASTM B366, ASTM SB 366, ASTM B564, ASTM B473, ASME SB564. The equivalent material are UNS N08020 and WNR 2.4660.

Due to our extensive experience, we maintain an affordable inventory of carpenter 20 pipe in the Gulf countries, know more about alloy 20 tubing specification

Alloy 20 pipe specification
Alloy 20 pipe specification

 

Size Length Wall thickness
1/2 to 4 " 6 to 12 meter Sch 40 to Sch 80
Specification Process Application
ASTM B729 | ASME SB729 seamless, hot rolled, annealed, welded petroleum processing equipmeny
Our online store offering the most updated price list for cut-to-size tubo alloy 20 in a variety of thicknesses. also see alloy 20 seamless tube types
Most frequent types of alloy 20 stainless steel pipe
Tubo alloy 20

Tubo alloy 20

  • BA (Bright & Annealed)
  • AP (Annealed & Pickled)
  • NO.1 and 2B
Carpenter 20 pipe

Carpenter 20 pipe

  • Wall: Sch 40 to Sch 80
  • OD: 1/2 to 4 inch
  • ASTM B729 | ASME SB729
Alloy 20 tube

Alloy 20 tube

  • Single Random
  • Standard & Cut length
  • Double Random
Manufacturer of UNS N08020 welded pipe of the highest quality in the following schedules: Sch-5, Sch-40, Sch-60, Sch-80 and Sch-10, see WNR 2.4660 pipe welding properties
WNR 2.4660 square pipe chemical properties
Alloy 20 Cu Ni Fe Cr Mo C Cb/Nb + Ta Mn S Si P -
Min 3.00 32.00 Bal 19.00 2.00 - 8 x C% - - - - %
Max 4.00 38.00 21.00 3.00 0.07 1.00 2.00 0.035 1.00 0.045 %
UNS N08020 welded pipes mechanical properties
Tensile Strength
min
Yield Strength (0.2% offset) min Elongation in 2"
or 4D
Reduction in Area
KSI min MPa min KSI min MPa min % min %
80 551 35 241 30 50
20CB-3 seamless tube equivalent
STANDARD AFNOR UNS EN WERKSTOFF NR.
Alloy 20 Z2NCUD31-20AZ N08020 NiCr20CuMo 2.4660
What is the use of alloy 20 seamless pipe?

The alloy 20 seamless pipe is used in different important industries like chemical processing, petrochemical, refining, marine, pharmaceutical and food & beverage. They are used in pumps and valves, mixing and storage tanks, fittings, agitators, food processing equipment and fasteners. They can be given different heat treatments per the application requirement by Alloy 20 and can show good performance in temperatures up to 1000 °F.

What is the price of alloy 20 tube ?

The alloy 20 tube is quite expensive compared to standard stainless steel grades. The alloy 20 seamless tube price is higher and can vary with the suppliers depending on their internal costing. The alloy 20 price can also depend on the market conditions, size & dimensions, customization, quantity purchase, added testing requirements and delivery location. To know the exact cost, contact reputed and reliable tubo alloy 20 suppliers like Regent Steel & Engineering Co. They offer the best quality tubes at the most competitive prices.

Can you weld carpenter 20 pipe to carbon steel?

Yes, carpenter 20 pipes can be welded to carbon steel pipes with certain considerations and precautions. This includes considering the corrosive environments where the pipe will be used. Also, selecting the right welding procedure depending on the wall thickness, pipe diameter and joint configuration is very crucial.

Size chart of alloy 20 seamless pipes
Description Manufacture Method Schedule Pipe Size Specification
4 SCH 80 SEAMLESS & DRAWN 80 4 ASTM B729 ASME SB729
1 SCH 80   80 1  
1/2 SCH 40   40 0.5  
2 SCH 80   80 2  
1 SCH 40   40 1  
3 SCH 80   80 3  
Dimensional tolerances of tubo alloy 20
OD Wall Tolerance OD Tolerance
.375” ± 15% ± .005”
.250” ± 15% ± .005”
.500” ± 15% ± .005”
Physical properties of alloy 20 welded pipe
Density Electrical Resistivity Specific Heat Thermal Conductivity
g/cm3 µΩ·m J/kg.°C W/m.°C
8.08 1.08 500 12.3
Temperature range of 20CB-3 annealed pipes
Annealing 1725°F and 1850°F
Hot working 950 °C (1740 °F)
Pressure rating carpenter 20 seamless pipe
OD
(In.)
Wall Thickness (Inches)
.065 .035 .028 .049 .095 .083 .120 .109
  Working Pressure
1/4 9500 4800 3700 7000
1/8 10100 7900
3/8 6100 3100 4400
5/16 7300 3700 5400
3/4 3000 2200 4600 4000
1/2 4400 2300 3200
1 2200 3400 2900 4300 3900
FAQ
What are common trade names of alloy 20 pipe ?
  • Carpenter® 20
  • INCOLOY® alloy 20
  • 20CB-3®
What is size range of carpenter 20 seamless and welded pipe ?
  • Seamless Pipe 1/2" to 8"
  • Welded Pipe 1/2" to 12"
What is working temprature of alloy 20 tubing ?

1688 ºF to 1760 ºF

What is wall thickness of alloy 20 stainless steel pipe ?

Schedule 40 to Schedule 80

What is the corrosion rate of WNR 2.4660 square pipe ?

<0.13 mm a−1

close