ASME SA-564 630 Stainless steels

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

Data updates

Latest Update: 2026-01
Total number of updates: 6
Update History
2024-01 2023-11 2023-10 2020-10 2016-02

This material has 958 properties — only a subset is shown here.

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ASME SA-564 630 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.07
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
15.00 – 17.50
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
3.00 – 5.00
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Nb+Ta
VALUE
val1
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UNIT
%
CAS NUMBER
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
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

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

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ASME SA-564 630 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
val1
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GPa
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Density
7.61 — 8.1 kg/dm³
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Poisson Coefficient
val1
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Coefficient of Thermal Expansion (CTE)
val1
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10-6/°C
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Thermal Conductivity
17.3 W/(m∙°C)
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This material has 958 properties — only a subset is shown here.

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ASME SA-564 630 Heat Treatments

  • Solution treating: 1040 ± 15°C (cooling as required to below 32°C)
    Precipitation hardening:
    H900: 480°C, 1h min. (cooling in air);
    H925: 495°C, 4h min. (cooling in air);
    H1025: 550°C, 4h min. (cooling in air);
    H1075: 580°C, 4h min. (cooling in air);
    H1100: 595°C, 4h min. (cooling in air);
    H1150: 620°C, 4h min. (cooling in air);
    H1150M: 760°C, 2h (cooling in air) plus 620°C, 4h (cooling in air);
    H1150D: 620°C, 4h (cooling in air) plus 620°C, 4h (cooling in air).

ASME SA-564 630 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
795 MPa
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Elongation, A
10 %
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Reduction of Area
val1
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%
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Impact Energy
val1
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J
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Brinell Hardness (HB)
255 — 363
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Rockwell Hardness (HR)
val1
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  • 329 Cross References
  • 9 Composition
  • 234 Mechanical Properties
  • 88 Physical Properties
  • 1 Heat Treatment
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