What is Stainless Steel 440A, 440B, 440C, 446 Round bar ?

Grade 440A is a high carbon version designed as stainless with some excellent properties such as good durability, and high corrosion resistance over various atmospheres. However, maximum corrosion resistance can only be obtained via stress relieving or hardening the material grade. SS 440A is magnetic in nature under annealed as well as hardened conditions.

SS 440B Round bars are martensitic steel, which also have higher carbon proportion to bear little similar properties of the SS 440A. SS 440B has limited resistance from corrosive environments and enough strength to survive against moderate temperature ranges. SS 440b bars is a chromium based crystalline nature steel bars that even enhance its further resistance as well.

stainless-steel-440a-440b-440c-446-round-bar

Stainless Steel 446 Polished Bar, UNS S44600 SS Polished Bars, SS DIN 1.4125 Forged Bars, 440C Steel Black Bars Suppliers in India.

SS 440C is also similar to the first 2, that means it also has higher resistance from corrosion and relatively excellent strength because of the higher carbon proportion into the material. Apart from corrosion, SS 440C also has good wear resistance and excellent properties only after the heat treatment. SS 440 round bars can survive from a high temperature environment and hence are used in several applications and multiple industries such as paper and pulp industries, power plant industries, chemical processing, petrochemical industries, food processing, and so on. SS 440C can also resist chlorine and oxidizing media under room temperature or abnormal temperatures. However, the utilization of SS 440 round bars takes place across sea and marine industries because these bars cannot survive crevice and pitting corrosions.

Stainless Steel 440A, 440B, 440C, 446 Specifications

Specification EN, DIN, JIS, ASTM, BS, ASME, AISI
Standard ASTM A276, ASME SA276 / ASTM A479 ASME SA479
Round Bars Outside Diameter in the range of 4mm to 500mm
Bright Bars Outside Diameter in the range of 4mm to 100mm
Square Bars 18mm – 47mm (11/16″ to 1-3/4″)
Hex Bars 18mm – 57mm (11/16″ to 2-3/4″)
Flat Bars 1/2” to 10” in thickness range of 2mm to 150mm
Length 1 to 6 Meters, Custom Cut Lengths
Finish Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Form Round Bars, Square Bars, Flat Bars, Threaded Bars, Hollow Bars, Hexagonal Bars, Triangular Bars
Application Most commonly used in petroleum refineries, Boilers, Heat exchangers, Condensers, Pipelines, Cooling towers, Steam exhausts, Electric generation plants, On occasion will be found in fertilizer and chemical plants.
STANDARD WERKSTOFF NR. UNS
440A 1.4109 S44002
440B 1.4112 S44003
440C 1.4125 S44004
SS 446 1.4762/1.4763 S44600
Grade C Mn Si P S Cr Ni

440A
0.6 –
0.75
1.00 max 1.00 max 0.04 max 0.030 max 16.00 –
18.00

440B
0.6 –
0.75
1.00 max 1.00 max 0.04 max 0.030 max 16.00 –
18.00

440C
0.95 –
1.20
1.00 max 1.00 max 0.040 max 0.030 max 16.00 –
18.00
SS 446 0.2 max 1.5 max 0.75 max 0.040 max 0.030 max 23.0-30.0
Tempering Temperature (°C) Tensile Strength (MPa) Yield Strength 0.2% Proof (MPa) Elongation (% in 50mm) Hardness Rockwell (HR C) Impact Charpy V (J)
Annealed* 758 448 14 269HB max#
204 2030 1900 4 59 9
260 1960 1830 4 57 9
316 1860 1740 4 56 9
371 1790 1660 4 56 9

Other Products

Stainless Steel 446 Flat Bars SS 446 Flat Bar
Stainless Steel 446 Polished Bar SS 446 Polished Bar
Stainless Steel 446 Threaded Bar SS 446 Threaded Bar
446 SS Flat Bars 446 Stainless Steel Flat Bars
446 Stainless Steel Polished Bar UNS S44600 SS Polished Bars

Stainless Steel 440A, 440B, 440C, 446 Price List

  • 446 stainless steel bars
    US $1000-2500 / Ton
  • astm a276 ss 446 rods
    US $2000-3000 / Ton
  • stainless steel hex bar 446
    US $1.5-4.5 / Kilogram
  • ASTM A479 446 stainless steel round bar
    US $1800-2300 / Ton
  • ss 446 square bar
    US $1550-2400 / Ton
  • 446 stainless steel bar manufacturer
    US $1800-2300 / Ton
  • ASTM A276 Gr. 446 rods
    US $1300-2600 / Metric Ton

Packaging

We Sumit Impex Metal Ensure the best quality of Packing , because its play important role especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put extraordinary concern regarding packaging.

We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,

  • Boxes and Crates
  • Shrink-wrapped
  • Carton boxes
  • Wooden pallets
  • Wooden boxes
  • Wooden crates

Testings (Destructive, Non Destructive)

  • Mechanical Testing Such as Tensile, Elongation, Reduction of Area
  • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
  • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Positive Material Identification – PMI Testing
  • Chemical Analysis – Spectro Analysis
  • Intergranular Corrosion (IGC) Test
  • Pitting Resistance Test
  • Dye Penetrant Test (DP Test)
  • Micro Test
  • Macro Test
  • Hardness Test
  • Flaring Test
  • Flattening Test
  • Hydrostatic Test
  • Radiography Test
  • Ultra Sonic Test (UT)
  • Eddy Current Testing
  • Impact Test
  • Bend Test

Application Industries

These material are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthrough the origins of stainless steel lies in a lucky accident. From the smallest part of zipper to the largest building skyscraper, stainless steel is an essential part of modern life.Stainless steel’s strength, resistance to corrosion and low maintenance make it the ideal material for a wide range of applications. It is also has a long life cycle and is 100% recyclable.

  • Construction
  • Bridges
  • Petrochemical Industry
  • Ship Building
  • Engineering
  • General Structural Purposes
  • Offshore and Onshore Services

Stainless Steel Sheet Manufacturers

Country we serve / City we deliver

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