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AISI 440A 440 A SUS440A X70CrMo15 1.4109 UNS S44002 Forged Forging Steel Round Bars Hollow Bars Shafts Square rectangular rectangle Blocks Discs Disks Plates Flat Bars
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We are professional AISI 440A 440 A SUS440A X70CrMo15 1.4109 UNS S44002 Forged Forging Steel Round Bars Hollow Bars Shafts Square rectangular rectangle Blocks Discs Disks Plates Flat Bars from china

Chemical Composition

The chemical composition of grade 440A stainless steel is outlined in the following table.

ElementContent (%)
Iron, FeBalance
Chromium, Cr16-18
Manganese, Mn1
Silicon, Si1
Molybdenum, Mo0.75
Carbon, C0.60-0.75
Sulfur, S0.03
Phosphorous, P0.04

Mechanical Properties

The mechanical properties of grade 440A stainless steel are displayed in the following table.

PropertiesMetricImperial
Tensile strength725-1790 MPa105000 - 260000 psi
Yield strength (@strain 0.200 %)415-1650 MPa60200 - 239000 psi
Modulus of elasticity204 - 215 GPa29600 - 31200 ksi
Elongation at break (in 50 mm)5- 20%5- 20%
Hardness, Rockwell B9595
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