ASME SA-335 Grade P122 Stainless steels

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

Data updates

Latest Update: 2019-11
Total number of updates: 2
Update History
2017-10

This material has 64 properties — only a subset is shown here.

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ASME SA-335 Grade P122 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.020
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
B
VALUE
0.0005 – 0.005
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
C
VALUE
0.07 – 0.14
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
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UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
CRITERIA
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
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
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2
CRITERIA
W
VALUE
val1
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UNIT
%
CAS NUMBER
7440-33-7
CRITERIA
Zr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-67-7

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-335 Grade P122 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 215 GPa
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Density
7.61 — 8.1 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 64 properties — only a subset is shown here.

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ASME SA-335 Grade P122 Heat Treatments

  • Shall be reheated for heat treatment.
    Normalized and tempered at range 1040 - 1080°C (1900 - 1975°F).
    Temper at range 730 - 800°C (1350 - 1470°F).
    It is recommended that the temperature for tempering should be at least 50°C (100°F) above the intended service temperature; consequently, the purchaser should advise the manufacturer if the service temperature is to be over 600°C (1100°F).
    Heat treatment after weld repair: heat treated at 730 - 800°C (1350 - 1470°F).

ASME SA-335 Grade P122 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 620 MPa
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Brinell Hardness (HB)
≤ 250
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Elongation, A
≥ 13 %
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Rockwell Hardness (HR)
val1
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Vickers Hardness (HV)
val1
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Yield Strength, Rp0.2
val1
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MPa
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ASME SA-335 Grade P122 International Equivalent Materials

Showing 5 of 10 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
A 213 Grade T122
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 335 Grade P122
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
10Cr11MoW2VNbCu1BN
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
SA-213 T122
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
10Cr11MoW2VNbCuBN
STANDARD
YB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Composition 100%

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

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  • 10Cross References
  • 17Composition
  • 12Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • 1Joints
  • -Coatings
  • 18Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 2Total Suppliers