ASME SA-320 Grade B8C Class 2 Stainless steels

Material group: Ferrous Alloys / Stainless steels
Country / Standard: United States / ASME

Data updates

Latest Update: 2026-01
Total number of updates: 5
Update History
2024-02 2024-01 2023-11 2020-10

This material has 1940 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

ASME SA-320 Grade B8C Class 2 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.08
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
17.0 – 19.0
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
≤ 2.00
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Nb+Ta
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
CRITERIA
Ni
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-21-3

ASME Boiler and Pressure Vessel Code An International Code Section II - Part A Ferrous Material Specifications, American Society of Mechanical Engineers, 2025

Looking for full material performance data?

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

ASME SA-320 Grade B8C Class 2 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
179.6 — 215 GPa
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
Electrical Resistivity
val1
Full data available with free access View Complete Material Data
Ω∙mm²/m
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
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
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
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
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
Coefficient of Thermal Expansion (CTE)
val1
Full data available with free access View Complete Material Data
10-6/°C
Unlock full details
Full data available with free access View Complete Material Data

This material has 1940 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

ASME SA-320 Grade B8C Class 2 Heat Treatments

  • When increased mechanical properties are desired, austenitic bolting shall be solution annealed and strain hardened if specified in the purchase order.

ASME SA-320 Grade B8C Class 2 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 626.4 MPa
Unlock full details
Full data available with free access View Complete Material Data
Brinell Hardness (HB)
val1
Full data available with free access View Complete Material Data
Unlock full details
Full data available with free access View Complete Material Data
Elongation, A
val1
Full data available with free access View Complete Material Data
%
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
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
Reduction of Area
val1
Full data available with free access View Complete Material Data
%
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

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

ASME SA-320 Grade B8C Class 2 International Equivalent Materials

Showing 14 of 461 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
SA-320 Grade B8CA Class 1A
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
SA-320 Grade B8C Class 1
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
SA-409 TP347
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
347
STANDARD
AISI
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 320 B8C Class 1
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 409 TP347
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 774 Grade TP 347
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 778 Grade TP 347
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 409 S34700
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 778 S34700
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 320 B8C Class 2
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 320 B8CA Class 1A
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
S34700
STANDARD
GOST
COUNTRY / PRODUCER
Russia
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
TP347
STANDARD
GOST
COUNTRY / PRODUCER
Russia
EQUIVALENCE CATEGORY
Composition 100%

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

Need the full list of 461 international equivalents?

See all 461 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

  • 461Cross References
  • 8Composition
  • 662Mechanical Properties
  • 413Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • 4Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • 4Creep
  • 33Joints
  • -Coatings
  • 3Dimensions
  • -Tribology
  • 346Corrosion
  • 2Ageing
  • -Weatherability
  • -Irradiation
  • 3Total Suppliers