PROPRIETARY HG 2631 Tool steels

Material group: Ferrous Alloys / Tool steels
Country / Standard: PROPRIETARY

Data updates

Latest Update: 2018-04
Total number of updates: 1
Update History

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PROPRIETARY HG 2631 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.50 – 0.60
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
4.75 – 5.50
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.20 – 0.50
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
W
VALUE
val1
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UNIT
%
CAS NUMBER
7440-33-7

Cold Work Tool Steels, HG2510, Huang Limited, 2017

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PROPRIETARY HG 2631 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.72 — 8 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 30 properties — only a subset is shown here.

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PROPRIETARY HG 2631 Heat Treatments

  • Forging:
    Preheat at 650-680°C before raising the temperature to 1050-1100°C and soak until uniformly heated. Initial hammer blows should be light due to the comparatively high hot strength of this steel. The forging temperature must be maintained above 1000°C until the metal begins to yield. Final forging should not be done below 900°C. Slow cooling after forging is essential to avoid the possibility of cracking.
    Annealing:
    Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1550°F (843°C), and hold at temperature for 1 hour per inch (25.4mm) of maximum thickness; 2 hours minimum. Then cool slowly with the furnace at a rate not exceeding 50°F per hour (28°C per hour) to 1000°F (538°C). Continue cooling to ambient temperature in the furnace or in air.
    Stress Relieving:
    To minimize internal stresses in cross sections greater than 6 inches (152.4 mm) and to improve stability in tools that will be EDM’d after heat treatment, a soaking time of 4 to 6 hours at the tempering temperature is strongly recommended.
    Hardening:
    Preheating: Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1400-1450°F (760-788°C) and equalize. Austenitizing (High Heat): Heat slowly from the preheat. Furnace or salt: 1825-1850°F (996-1010°C). Soak for 30 minutes for the first inch (25.4 mm) of thickness, plus 15 minutes for each additional inch (25.4 mm). Quenching: Air, pressurized gas, or interrupted oil to 150-125°F (66-51°C). Note: Sizes over 5 inches (127 mm) in cross section may not achieve full hardness by cooling in still air. It is usually necessary to increase the quench cooling rate between 1400 to 900°F (760 to 482°C) by using an air blast, pressurized gas, or an interrupted oil quench. For the oil quench, quench until black, about 900°F (482°C), then cool in still air to 150-125°F (66-51°C).
    Tempering:
    Temper immediately after quenching. Hold at temperature for 1 hour per inch (25.4 mm) of thickness, 2 hours minimum, then air cool to ambient temperature. The typical tempering range is 300 to 600°F (149 to 316°C). Double tempering is recommended for tempering temperatures of 900°F (482°C) and higher.

PROPRIETARY HG 2631 International Equivalent Materials

Showing 4 of 11 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
Ch.4755
STANDARD
JUS
COUNTRY / PRODUCER
Yugoslavia
EQUIVALENCE CATEGORY
Implicit
MATERIAL
BÖHLER K350
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
WR Spezial
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
SIHARD 2631
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit

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  • 11Cross References
  • 8Composition
  • -Mechanical Properties
  • 3Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 6Total Suppliers