AISI A514 Grade B Alloy Steel (UNS K11630)

Sep 13 2012

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Other Designations

Introduction

Alloy steels are designated by AISI four-digit numbers. They comprise different kinds of steels which exceed the composition limits of Mn, C, Mo, Si, Ni, Va, and B set for carbon steels. They respond more quickly to mechanical and heat treatments than carbon steels.

The following datasheet will discuss in detail about AISI A514 grade B alloy steel, which has high yield strength.

Chemical Composition

The following table shows the chemical composition of AISI A514 grade B alloy steel.

Element Content (%)
Iron, Fe 98
Manganese, Mn 0.85
Chromium, Cr 0.48
Silicon, Si 0.28
Molybdenum, Mo 0.2
Titanium, Ti 0.02
Carbon, C 0.12 - 0.210
Vanadium, V 0.05
Boron, B 0.003

Physical Properties

The physical properties of AISI A514 grade B alloy steel are given in the following table.

Properties Metric Imperial
Density 7.85 g/cm3 0.284 lb/in³

Mechanical Properties

The mechanical properties of AISI A514 grade B alloy steel are outlined in the following table.

Properties Metric Imperial
Tensile strength 760-895 MPa 110000-130000 psi
Yield strength (@ strain 0.200%) 690 MPa 100000 psi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson's ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 18% 18%
Hardness, Brinell (@ thickness 9.50 mm/0.374 in, for plates) 235-293 235-293
Hardness, Knoop (converted from Brinell hardness) 289 289
Hardness, Rockwell B (converted from Brinell hardness) 98 98
Hardness, Rockwell C (converted from Brinell hardness) 26 26
Hardness, Vickers (converted from Brinell hardness) 278 278

Other Designations

Other designations that are equivalent to AISI A514 grade B alloy steel include:

  • AMS 6386 (2)
  • ASTM A514 (B)
  • ASTM A517 (B)

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