Leading Provider of

Stainless Steel

Opening Times

Mon - Sat: 7.00 - 18:00

Get in touch

enquiry@harshsteel.com

ASTM A789 Square Bars, ASME SA789 Square Bars, Super Duplex Steel Square Bars Supplier, Manufacturer and Exporter in India


Din 1.4362 Super Duplex Steel Square Bars, UNS S32304 Square Bars, Super Duplex Steel Square Bars, Super Duplex Steel Square Bars Suppliers in India.

GENERAL PROPERTIES:-

Duplex 2304 is a 23% chromium, 4% nickel, molybdenum-free duplex stainless steel whose structure is a balance of ferritic and austenitic. It has general corrosion resistance similar or better than Alloys 304L and 316L but with yield strength nearly double that of austenitic stainless steels. Its duplex microstructure and low nickel and high chromium contents also allows Duplex 2304 to demonstrate improved stress corrosion resistant properties compared to 304 and 316. It is typically suitable for all applications in the -58oF to 572oF (-50oC to 300oC) temperature range and is designed to feature high mechanical strength, good weldability, good corrosion resistance, high resistance to stress corrosion cracking, good machinability, low thermal expansion, good fatigue properties, high thermal conductivity, and easy fabrication.


APPLICATION:-

Duplex 2304 is generally used in the same applications in which Alloys 304 and 316L are used. Some examples of these applications include:

  • Chloride containing environments
  • Welded pipe systems within the Pulp and Paper, Chemical and Petrochemical, and Water Treatment industries
  • Transportations
  • Heat exchanger tubes
  • Architecture, building, construction
  • Pressure vessels
  • Caustic solutions, organic acids
  • Food industry

COROSSION RESISTANCE:-

  • Due to its high chromium content of 23%, the corrosion resistance properties of Duplex 2304 are practically equivalent to those of Alloy 316L
  • Its duplex microstructure and low nickel and high chromium contents allows Duplex 2304 to have improved stress corrosion resistance properties compared to the 304L and 316L standard austenitic grades.
  • More resistant to pitting and crevice corrosion resistance that Alloy 316L
  • Outperforms Alloys 304L and 316L in stress corrosion cracking resistance in chloride containing aqueous solutions
  • Its corrosion rate in boiling nitric acid (65%) is higher than that of Alloy 316L
  • Its high yield strength allows Duplex 2304 to perform well in abrasion/corrosion applications

STRUCTURE:-

  • Microstructure of Duplex 2304 is very stable compared to molybdenum containing duplex stainless steels
  • Contains approximately equal amounts of ferritic and austenitic in microstructure after annealing in a temperature about

WELDABILITY:-

  • Can be successfully welded by TIG manual and automatic, PLASMA, MIG, SMAW, SAW, FCAW
  • Duplex microstructure renders the alloy less sensitive to hot cracking
  • Pre-heating and post welding is not required
  • Filler metal should be a balanced ferrite/austenitic type

MECHINABILITY:-

  • Exhibits improved machinability properties particularly when considering drilling
  • Low speeds and high feeds will minimize this alloys tendency to work harden

COMPOSITION:

C Cr Fe Mn Si S P Ni Cu N
Duplex 2304 0.03 max min: 21.5 max:24.5 Bal. 2.5 max 1.0 max 0.03 max 0.04 max min:3.0 max:3.5 min:0.05

max: 2.0

min: 0.05 max: 2.0

MECHANICAL PROPERTIES:

Grade Tensile Strength ksi (MPa) min Yield Strength 0.2% offset ksi (MPa) min Elongation (% in 50mm) min Hardness (Brinell) MAX Hardness (Rockwell B) MAX
Duplex 2304 87 (600) 58 (400) 25 293 31j

PHYSICAL PROPERTIES:

Duplex 2304
Density at 68°F (20°C) 0.28 lbm/in3 7800 kg/cm3
Coefficient of Thermal Expansion ax10-6°C-1
68°F to: 212°F (20 -100°C) 13
68°F to 392°F (20 -200°C) 13.5
68°F to 572°F (20 -300°C) 14
Thermal Conductivity W.m-1.K-1
at 68°F
(20°C)
17
at 212°F
(100°C)
18
at 392°F
(200°C)
19
at 572°F
(300°C)
20
Electrical Resitivity (µ_ cm)
at 68°F
(20°C)
80
at 212°F
(100°C)
92
at 392°F
(200°C)
100
at 572°F
(300°C)
105
Specific Heat (Btu/lb/°F)
32°F to: 212°F (20 -100°C) 0.11

SQUARE BAR PRODUCT OVERVIEW:-

Stainless Steel Square Bar
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

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

PROCESSING:-

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

Long Product Processing Services Overview
Square Bar Cutting Products cut include Round Bar, Flat bar, Hex bar, Square bar, Tubing and Hollow Bar, Pipe, Angles, channels, Beams and Tees.  Thickness range is 1/16″ to 28″ diameter
Square Bar 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 Bar Polishing Products polished included all tubular products, with OD & ID polishing available, Round Bar, Square Bar, Hex & Flat bar, Angles, Uneven Leg Angles, beams, and other shapes.

TOLERANCES FOR COLD AND HOT SQUARE BARS

COLD FINISHED SQUARE BAR 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 SQUARE BAR STRAIGHTNESS TOLERANCES:

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


HOT FINISHED SQUARE BAR 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 SQUARE BAR STRAIGHTNESS TOLERANCES:

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


STAINLESS STEEL SQUARE BAR SPECIFICATIONS:

Stainless Steel Square Bar Specifications
ASTM A276 This specification encompasses cold-finished or hot-finished bars, 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 bars, 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 bars, 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 bars, 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 SUPER DUPLEX STEEL UNS S32304 SQUARE BARS 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.



Enquiry







OUR SUMMARY:
Reviewer :
Harsh steel
Review Date :
Reviewed Product :
SUPER DUPLEX STEEL UNS S32304 SQUARE BARS
Author Rating
5starstarstarstarstar