K M D Steel And Tube is the most dominating manufacturers, stockists, supplier & exporter of SS 440 B Round Bars. These Round Bars are high chromium consisting Steel that obtains excellent hardness through heat treatment. 440 B round bars will accomplish ideal consumption opposition whenever avoided ointments, scale and outside particles Also coatings applied for drawing and heading will block most extreme erosion obstruction. The machining of Steel grade 440 B Bars is like that of any fast toughened steel grade. These Round Bars are made in different size, dimensions & thickness & this is delivered to customers as per their need & requirement. The SS 440 B Round Bars are made of best quality raw material and do match national & international quality standard & this helps us to have high demand in the market from our customers. When it comes to packaging this is done with prime importance because we know the ups & downs faced while import & export of product hence we make sure that the products are delivered in good conditions without any damages. These prices for these Round Bars are completely market friendly & affordable.
Standard | 440 B / 1.4112 |
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Designation | ASTM, ASME, AISI A 276 , SA 276, A 479, SA 479 |
Range | 3 MM TO 350 MM DIA |
Finish | Bright, Polish & Black |
Form | Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc. |
Application | Cutlery, Steam and gas turbine blades, Kitchen utensils, Bolts, nuts, screws, Pump and valve parts and shafts, Mine ladder rugs, Dental and surgical instruments, Nozzles, Hardened steel balls and seats for oil well pumps. |
Grade | C | Mn | Si | P | S | Cr | Ni |
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440B | 0.6 - 0.75 | 1.00 max | 1.00 max | 0.04 max | 0.030 max | 16.00 - 18.00 | - |
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 |
* Annealed properties are typical for Condition A of ASTM A276# Brinell Hardness is ASTM A276 specified maximum for annealed 440A, B and C. |