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440b Round Bar Specifications

Round Bars

Stainless Steel 440b Round Bar Manufacturer

Manufacturer of Stainless Steel 440b Round Bar, UNS S44003 Round Bar, WNR. 1.4112 Round Bar.

Stainless Steel 440b Round Bar Manufacturer

Stockists, Suppliers, and Exporters of ASTM A276 Stainless Steel 440b Round Bar, ASTM A479 Rods, Flat Bar, Rectangular Bar, Hex Bar, Bright Bar, Square Bar, Cold Rolled Bars, Hot Rolled Bar, Polished Round Bar, Forged Bar, Cold Drawn Bars in Malaysia, Indonesia, Sri Lanka, Kenya, Uganda, and Zambia.

What is Stainless Steel 440b Round Bar

We are a known manufacturer of SS 440b Round Bars, which is not voluntarily cold workable. Like other common austenitic steels, Alloy 440b Round Bars is subject to corrosion cracking in chloride environments above 60°C. The manufacture of these Grade 440b Round Bars should only be done with tools intended for steel materials. If this is not the case, rust will form on this 440b Stainless Steel Round Bars, as with other non-stainless steels.

Continuous use in the range of 425 degrees C to 860 degrees C in Stainless Steel 440b Bars is generally not recommended due to carbide precipitation. Stainless Steel 440b Rods is generally not low in carbon, and so is prone to sensitization. Stainless Steel UNS S44003 Round Bars have a eutectoid point of at least 727 degrees C (1,341 degrees F). The cold formability of these Stainless Steel WNR1.4112 Round Bars is negatively influenced by the high sulfur content. Stainless Steel 440b Flat Bars provides good oxidation resistance at temperatures up to 1700 degrees F (927 degrees C).

In addition to reducing corrosion resistance, sulfur additions to these Stainless Steel 440b Square Bars also result in poor weldability and reduced formability. Work surfaces and tools on these Stainless Steel 440b Threaded Bars must be thoroughly cleaned before use. Some cold working of these Stainless Steel 440b Hexagonal Bars is possible, but severe bending should not be attempted. Stainless Steel 440b Bars cannot be hardened by thermal treatment and can only be hardened by cold working.

ASTM A276 Stainless Steel 440b Round Bar Specifications

  • Standard: AISI, ASTM, BS, DIN, GB, JIS
  • Related Specifications: 1.4112 | X90CrMoV18 | ASTM A276 | UNS S44003 | AISI 440
  • Specifications: ASTM A276 / ASME SA276
  • Size Range: 3 mm up to 100 mm 1/8” up to 4”
  • Size Tolerance: h8, h9 (DIN 671), h10, h11,ASTM A484, DIN 1013
  • Length: 1 to 6 meters & as per customer’s requirement.
  • Materials Grades: Stainless Steel 440B
  • Form: Hex, Round, Square, Flat, Rectangular Bars

Alternative stainless grades we supply

SS 303 | SS 304 | SS 304H | SS 304L | SS 310/310S | SS 316/316L | SS 316H | SS 316Ti | SS 317/317L | SS 321/321H | SS 347 | SS 410 | SS 416 | SS 420 | SS 430-430F | SS 446 | SS 422 | SS 431 | SS 904L | SS 440C

Equivalent Grades of Stainless Steel 440B Round Bar

440B A276 / SA276 S44003 1.4112 X90CrMoV18 Z2CND1805 SUS440B

Chemical Composition of SS Grade 440B Round Bars

Grade C Mn Si P S Cr Ni
440B 0.6 -0.75 1.00 max 1.00 max 0.04 max 0.030 max 16.00 -18.00

Mechanical Properties SS 440B Round Bars

Tempering Temperature (°C) Tensile Strengtd (MPa) Yield Strengtd 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

Top Industries That Use SS 440B Round Bar

  • Oil and Gas Industry
  • Petrochemical Industry
  • Power Plant Industry
  • Chemical Industry
  • Pharmaceuticals Industry
  • Energy Industry
  • Food Processing Industry
  • Pulp & Paper Indusry
  • Refining Industry
  • Aerospace Industry

Grade 440B Round Bar Supply Conditions

  • Cold Drawn & Polished
  • Cold Drawn, Centerless Ground & Polished
  • Peeled, Centerless Ground & Polished
  • Peeled (Rough Turned)
  • Buffed (Mirror Finish)
  • Chamfered(30/45/60 Degree)
  • Solution Annealed, Grit 240-320 Polish

440B Stainless Steel Round Bar Test Certificates

  • IBR Test Certificate (Form III-D)
  • Manufacturer Test Certificate
  • Laboratory Test Certificate from Govt. Approved Lab.
  • Under Third Party Inspection with Excise Gate Pass to avail Modvat benefit
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