PROPRIETARY HAYNES 188 alloy Cobalt Alloys

Material group: Nonferrous Alloys / Cobalt Alloys
Country / Standard: PROPRIETARY

Data updates

Latest Update: 2025-06
Total number of updates: 6
Update History
2024-05 2021-08 2016-02 2015-05 2014-05

This material has 515 properties — only a subset is shown here.

Unlock full material properties, including detailed values across temperatures and conditions.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

PROPRIETARY HAYNES 188 alloy Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
B
VALUE
≤ 0.015
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
C
VALUE
0.10
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Co
VALUE
39
UNIT
%
CAS NUMBER
7440-48-4
CRITERIA
Cr
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Fe
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
La
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7439-91-0
CRITERIA
Mn
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Ni
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
Si
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
W
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-33-7

Haynes International, Product Data Sheets,

Looking for full material performance data?

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

PROPRIETARY HAYNES 188 alloy Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
232 GPa
Unlock full details
Full data available with free access View Complete Material Data
Electrical Resistivity
1.01 Ω∙mm²/m
Unlock full details
Full data available with free access View Complete Material Data
Thermal Conductivity
val1
Full data available with free access View Complete Material Data
W/(m∙°C)
Unlock full details
Full data available with free access View Complete Material Data
Density
val1
Full data available with free access View Complete Material Data
kg/dm³
Unlock full details
Full data available with free access View Complete Material Data
Heat Capacity
val1
Full data available with free access View Complete Material Data
J/(kg∙°C)
Unlock full details
Full data available with free access View Complete Material Data
Dynamic Modulus of Elasticity
val1
Full data available with free access View Complete Material Data
GPa
Unlock full details
Full data available with free access View Complete Material Data
Electrical Conductivity
val1
Full data available with free access View Complete Material Data
S/m
Unlock full details
Full data available with free access View Complete Material Data
Melting Temperature
val1
Full data available with free access View Complete Material Data
°C
Unlock full details
Full data available with free access View Complete Material Data
Poisson Coefficient
val1
Full data available with free access View Complete Material Data
Unlock full details
Full data available with free access View Complete Material Data
Service Temperature
val1
Full data available with free access View Complete Material Data
°C
Unlock full details
Full data available with free access View Complete Material Data
Shear Modulus
val1
Full data available with free access View Complete Material Data
GPa
Unlock full details
Full data available with free access View Complete Material Data

This material has 515 properties — only a subset is shown here.

Unlock detailed physical values across temperatures and conditions.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

PROPRIETARY HAYNES 188 alloy Heat Treatments

  • The alloy is normally final solution heat-treated at 1175°C (2150°F) for a time commensurate with section thickness. Annealing during fabrication can be performed at even lower temperatures, but a final, subsequent solution heat treatment is needed to produce optimum properties and structure.
  • Annealed at 1177°C (2150°F)

PROPRIETARY HAYNES 188 alloy Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 861.8 MPa
Unlock full details
Full data available with free access View Complete Material Data
Elongation, A
9.8 — 56 %
Unlock full details
Full data available with free access View Complete Material Data
Yield Strength, Rp0.2
val1
Full data available with free access View Complete Material Data
MPa
Unlock full details
Full data available with free access View Complete Material Data
Grain Size
val1
Full data available with free access View Complete Material Data
Unlock full details
Full data available with free access View Complete Material Data
Impact Energy
val1
Full data available with free access View Complete Material Data
J
Unlock full details
Full data available with free access View Complete Material Data
Rockwell Hardness (HR)
val1
Full data available with free access View Complete Material Data
Unlock full details
Full data available with free access View Complete Material Data
Vickers Hardness (HV)
val1
Full data available with free access View Complete Material Data
Unlock full details
Full data available with free access View Complete Material Data

Need complete mechanical properties to make the right choice?

Get complete data on strength, hardness, fatigue, and more.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

Book A Demo

PROPRIETARY HAYNES 188 alloy International Equivalent Materials

Showing 9 of 15 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
Nickelvac 188
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
Udimet alloy 188
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
VDM alloy 188
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
TURBALOY 188
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
Alloy 188
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
Haynes 188
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
HS188
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
Alloy 188
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
HAYNES 188 RTW Filler Metal
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

Need the full list of 15 international equivalents?

See all 15 equivalent grades with detailed mapping by standard, producer and equivalence category.

View All Equivalents ›
Free registration required • Instant access

Free registration required • Instant access

Book A Demo

Optimize material selection for your application - Book A Demo

  • 15Cross References
  • 30Composition
  • 156Mechanical Properties
  • 135Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability
  • 92Stress-Strain
  • 56Formability
  • 10Fatigue
  • -Fracture
  • 2Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • 3Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 14Total Suppliers