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ASTM B473 Square Tube, ASME SB473 Square Tube, Alloy 20 Square Tube Supplier, Manufacturer and Exporter in India


Din 2.4660 Alloy 20 Square Tube, UNS N08020 Square Tube, Alloy 20 Square Tube, Alloy 20 Square Tube Suppliers in India.

ALLOY 20 SQUARE TUBES GENERAL PROPERTIES:

Alloy 20 (UNS N08020) is an austenitic, nickel-iron-chromium based super alloy with additions of Copper and Molybdenum which provide resistance to hostile environments, pitting, and crevice corrosion. It is also stabilized with Columbium to minimize carbide precipitation during welding. Alloy 20 appears to fall between both the stainless and nickel categories as it contains characteristics of both. It was designed for maximum resistance to acid attack and demonstrates superior resistance to stress-corrosion cracking in boiling 20% to 40% sulfuric acid, and also has excellent general corrosion resistance to sulfuric acid and to chloride stress corrosion cracking. Alloy 20 has good mechanical properties at both ambient and elevated temperatures, up to approximately 930°F (500°C) and is readily fabricated by usual industrial processes.


ALLOY 20 SQUARE TUBES APPLICATIONS:

Alloy 20 was originally designed for use in sulfuric acid related applications; however, it is now frequently used in a wide variety of industries. Applications that commonly use Alloy 20 include:


  • Chemical and allied industries
  • Food and dye production
  • Heat exchangers
  • Explosives
  • Tanks
  • Valves
  • Pickling racks
  • Manufacture of synthetic rubber and plastics
  • Pharmaceuticals
  • SO2 scrubbers and other severe environments

ALLOY 20 SQUARE TUBES CORROSION RESISTANCE:

  • Excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric, and nitric acids.
  • Nickel content aids in chloride ion stress and corrosion resistance.
  • Additions of Copper and Molybdenum provide resistance to hostile environments, pitting, and crevice corrosion.
  • Chromium adds to its resistance of oxidizing environments such as nitric acids.
  • Columbium reduces the effects of carbide precipitation.

ALLOY 20 SQUARE TUBES WELDABILITY:

  • All commonly used welding methods, with the exception of oxyacetylene, can be successfully used.
  • The presence of Columbium tends to minimize the precipitation of carbides in the heat-affected zone, so the material may be used in the as-welded condition in most cases.
  • Pre-heating is not required.

ALLOY 20 SQUARE TUBES HEAT TREAMENT:

  • Cannot be hardened by heat treatment.
  • Stabilized-annealing is done at 1750-1850°F, followed by water quenching.
  • Stress relieving can be performed on annealed material up to 950°F.

ALLOY 20 SQUARE TUBES PROCESSING - HOT FORMING:

  • Heat uniformly to a starting temperature of 2100-2225°F. Finish forging before the stock drops below 1800°F.
  • In order to stabilize the material after hot working operations, reheat at 1750-1850°F for a minimum of 1/2-hour per one inch of thickness and water quench.

ALLOY 20 SQUARE TUBES PROCESSING - COLD FORMING:

  • Alloy 20 has good cold formability. Bending, drawing and pressing, and other forming operations that occur in the production of fabricated items are readily performed.
  • Alloy 20 can normally be press brake bent over a radius twice the materials thickness.
  • After cold reductions of more than 15%, a final stabilizing annealing is often required.

ALLOY 20 SQUARE TUBES MACHINABILITY:

Because of Alloy 20′s high work-hardening rate the following are required:


  • Only low surface-cutting speeds are possible compared with low-alloy standard austenitic stainless steel.
  • Tools should be engaged at all times.
  • Heavy feeds are important in getting below the work-hardened 'skin'.

ALLOY 20 SQUARE TUBES CHEMICAL PROPERTIES:

TYPE C Cr Cu Fe Mn Mo Ni P Si S Nb
(Cb)
Alloy 20
UNS
N08020
0.07
max
min: 19.00
max: 21.00
min: 3.00
max: 4.00
Balance 2.00
max
min: 2.00
max: 3.00
min: 32.00
max: 38.00
0.045
max
1.00
max
0.035
max
8 XC min
1.00 max

ALLOY 20 SQUARE TUBES MECHANICAL PROPERTIES:

Stabilized-Annealed Condition
Product Form Tensile
Strength, ksi (min)
Yield
Strength, 0.2% offset ksi (min)
Elongation % (min) Reduction of Area
% (min)
Hardness
Brinell (max)
Hardness
Rockwell B (max)
Plate, Sheet 80 35 30 217 95
Tube 80 35 30 50

ALLOY 20 SQUARE TUBES PHYSICAL PROPERTIES:

Density Specific Gravity Specific Heat
at 32 to 212°F
Electrical Resistivity
at 68°F
Poissons Ratio Magnetic Permeability
at 68°F
Modulus of Elasticity
at 68°F
0.292 lbs/in3 8.08 0.12 BTU/lb/°F 644 ohm-cir mil/ft 0.31 1.002 Mu 29.3 x 106 psi

ALLOY 20 SQUARE TUBES PRODUCT OVERVIEW:

Stainless Steel Square Tube
Thickness Range of Stainless Plate 3/16″ THRU 4″ (LARGER SIZES AVAILABLE UPON REQUEST)
Grades 202, 304/304L, 316/316L,304H, 316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410. In duplex grades, we can supply 2205 and 2507. Some nickel Alloy such as alloy 200/201, C276, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and others Titanium alloys and copper alloys are also available

ALLOY 20 SQUARE TUBES INVENTORY:

  • X = Stocked Item
  • P = Call For availability square bar can be cut to size.
  • Square bar can be polished per customer specifications.
  • Square bar is stocked in Penn met 2000 for improved machinability.
Size in Inches Wt per Ft Wt per 12′ 303 304/L 316/L 416
3/16″ 0.120 1.440 X X X P
1/4″ 0.210 2.52 X X X P
5/16″ 0.330 3.96 X X X X
3/8″ 0.480 5.76 X X X X
7/16″ 0.650 7.80 X X X X
1/2″ 0.850 10.20 X X X X
9/16″ 1.080 12.96 X X X X
5/8″ 1.330 15.96 X X X X
3/4″ 1.910 22.92 X X X X
7/8″ 2.610 31.32 X X X X
1″ 3.400 40.80 X X X X
1-1/8″ 4.310 51.72 X X X X
1-1/4″ 5.320 63.84 X X X X
1-3/8″ 6.400 76.80 X X X X
1-1/2″ 7.600 91.20 X X X X
1-3/4″ 10.400 124.80 X X X X
2″ 13.600 163.20 X X X X
2-1/4″ 17.200 206.40 X X X X
2-1/2″ 21.300 255.60 X X X X
3″ 30.63 367.56 X X X P
4″ 54.40 652.80 X X X P

ALLOY 20 SQUARE TUBES PROCESSING:

Customers can select a number of processing options to produce stainless steel tubes to their exact specifications, reducing materiel costs, production time, scrap and internal handling.

Long Product Processing Services Overview
Square Tube Cutting Products cut include Round Tube, Flat bar, Hex bar, Square bar, Tubing and Hollow Tube, Pipe, Angles, channels, Beams and Tees.  Thickness range is 1/16″ to 28″ diameter
Square Tube Production Cutting Penn Stainless can provide production cutting for product diameters up to 4″.  We utilize Amanda Production Equipment to achieve these precision cuts with tight tolerances.
Square Tube Polishing Products polished included all tubular products, with OD & ID polishing available, Round Tube, Square Tube, Hex & Flat bar, Angles, Uneven Leg Angles, beams, and other shapes.

TOLERANCES FOR COLD AND HOT ALLOY 20 SQUARE TUBES:

COLD FINISHED ALLOY 20 SQUARE TUBES TOLERANCES:

CF Tolerances Plus Minus
1/8″ to 5/16″ (exclusive) 0.000 0.002
5/16″ to 1/2″ (exclusive) 0.000 0.003
1/2″ to 1″ (inclusive) 0.000 0.004
over 1″ to 2″ (inclusive) 0.000 0.006
over 2″ to 3″ (inclusive) 0.000 0.008

COLD FINISHED ALLOY 20 SQUARE TUBES STRAIGHTNESS TOLERANCES:

CF: 1/16 inch in any 5 foot; but may not exceed 1/16 X (length in ft/5)


HOT FINISHED SQUARE TUBES TOLERANCES:

HF Tolerances Plus Minus Out of Sq
Over 7/8″ to 1″ (inclusive) 0.009 0.009 0.013
Over 1″ to 1-1/8″ (inclusive) 0.010 0.010 0.015
Over 1-1/8″ to 1-1/4″ (inclusive) 0.011 0.011 0.016
Over 1-1/4″ to 1-3/8″ (inclusive) 0.012 0.012 0.018
Over 1-3/8″ to 1-1/2″ (inclusive) 0.014 0.014 0.021
Over 1-1/2″ to 2″ (inclusive) 1/64 1/64 0.023

HOT FINISHED ALLOY 20 SQUARE TUBES STRAIGHTNESS TOLERANCES:

HF: 1/8 inch in any 5 foot; but may not exceed 1/8 X (length in ft/5)


ALLOY 20 SQUARE TUBES SPECIFICATIONS:

Stainless Steel Square Tube Specifications
ASTM A276 This specification encompasses cold-finished or hot-finished tubes, including rounds, squares, and hexagons, and hot-rolled or extruded shapes, such as angles, tees, and channels in the more commonly used types of stainless steels.
ASTM A479 This specification includes cold and hot finished stainless steel tubes, including rounds, squares, and hexagons, and hot-rolled or extruded shapes such as angles, tees, and channels.
ASTM A484 This specification includes wrought stainless steel tubes, shapes, forgings, and billets or other semi-finished materials, except wire, for forging. The materials are available in four types of conditions.
ASTM A582  This specification includes cold or hot finished tubes, which are suitable for machining processes. This specification includes rounds, squares, and hexagons, from common types of stainless free-machining steels.
ASTM B473  This specification includes nickel alloy bar & wire, which can be produced in a solution-annealed condition, stabilized-annealed condition, or annealed condition.

We export our ALLOY 20 SQUARE TUBES products to Western and Eastern Europe, Saudi Arabia, Bangladesh, United States, United Arab Emirates, Canada, Angola, Argentina, Austria, Azerbaijan, Pakistan, Peru, Chile, Spain, France, United Kingdom, Indonesia, Israel, Iran, Kuwait, Mexico, Malaysia, Nigeria, Serbia, Singapore, Taiwan, Chile, Venezuela, Ecuador, Netherlands, Brazil, Colombia, Ghana, Iran, Denmark, Poland, Australia, Afghanistan, Bahrain, Costa Rica, Egypt, Iraq, Jordan, South Korea, Kazakhstan, Sri Lanka, Lithuania, Norway, Oman, Philippines, Poland, Qatar, Russia, Vietnam, South Africa, Nigeria, Mexico, Turkey, Hungary, Algeria, Belarus, Belgium, Bhutan, Bolivia, Bulgaria, Croatia, Czech Republic, Estonia, Finland, Greece, Italy, Japan, Libya, Romania, Thailand, Trinidad & Tobago,Tunisia, Ukraine, Yemen, Hong Kong, Gabon, China, Portugal, Switzerland, New Zealand, Sweden, Slovakia, Kenya, Lebanon, Morocco, Mongolia etc. We are sure that we also can cover the requirements requested by your company you can email us at harshsteel@ymail.com for your instant requirements.




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OUR SUMMARY:
Reviewer :
Harsh steel
Review Date :
Reviewed Product :
ALLOY 20 SQUARE TUBES
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