PROPRIETARY CarTech 21Cr-6Ni-9Mn Stainless Stainless steels

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

Data updates

Latest Update: 2019-09
Total number of updates: 3
Update History
2014-11 2014-07

This material has 321 properties — only a subset is shown here.

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PROPRIETARY CarTech 21Cr-6Ni-9Mn Stainless Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.03
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
19.00 – 21.50
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Fe
VALUE
Balance
UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
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

Carpenter Technology Corporation, Product Data Sheets,

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PROPRIETARY CarTech 21Cr-6Ni-9Mn Stainless Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 215 GPa
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Electrical Resistivity
0.73 Ω∙mm²/m
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Density
val1
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kg/dm³
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Electrical Conductivity
val1
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S/m
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Poisson Coefficient
val1
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This material has 321 properties — only a subset is shown here.

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PROPRIETARY CarTech 21Cr-6Ni-9Mn Stainless Heat Treatments

  • Annealing: is used for best stress rupture life and for operating temperatures between 704-871°C (1300-1600ºF). The alloy is not recommended for service above 871°C (1600ºF). Also, annealing softens the alloy for maximum formability. After annealing the strength of the material can be increased only by hot/cold working or cold working. Annealing is generally done in the temperature range of 982-1177°C (1800-2150ºF). Grain coarsening will occur at the higher temperatures. Lower temperatures such as 899°C (1650ºF) can be used; the temperature must be selected according to the degree of softening required and grain size restrictions.

    Stress relieving: is used to achieve best all-around properties and for operating temperatures below 704°C (1300ºF). The temperature range for stress relieving is 482-760°C (900-1400ºF). Temperatures between 482 and 677ºC (900 and 1250°F) will have little effect on the mechanical properties of cold reduced material unless the percent cold reduction is high; then slight increases or decreases in strength will occur. Above 677°C (1250ºF), the change in mechanical properties will occur more rapidly; a temperature of 816°C (1500ºF) begins to cause rapid softening. The proper stress relief treatment should be selected carefully in order to produce the desired strength levels.

    Hot working is normally done in the temperature range of 649-816°C (1200-1500ºF). Reductions in the order of 10 to 40% are used and the percent used is dependent on the strength level required. A stress relief of 482-760°C (900-1400ºF) is normally applied after hot/cold working operations.

PROPRIETARY CarTech 21Cr-6Ni-9Mn Stainless Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
641 — 1241 MPa
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Elongation, A
val1
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%
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Yield Strength, Rp0.2
val1
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MPa
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Impact Energy
val1
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J
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Reduction of Area
val1
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%
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Rockwell Hardness (HR)
val1
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PROPRIETARY CarTech 21Cr-6Ni-9Mn Stainless International Equivalent Materials

Showing 15 of 45 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
SA-312 TPXM-11
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
SA-182 FXM-11
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
SA-479 Type XM-11
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
SA-666 XM-11
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
SA-276 XM-11
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 336 Grade FXM-11
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 312 TPXM-11
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 269 TPXM-11
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 479 XM-11
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 473 XM-11
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 314 XM-11
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 182 F XM-11
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 943 TPXM-11
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
S21900
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 813 Grade TP XM-11
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit

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

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  • 45Cross References
  • 9Composition
  • 172Mechanical Properties
  • 38Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • 27Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • 2Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • 13Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 14Total Suppliers