Armco Telar 57 (PROPRIETARY) Material Properties

Material group: Ferrous Alloys / Magnetic and electrical materials
Country/Standard: PROPRIETARY

Data updates

Latest Update: 2020-03
Total number of updates: 1
Update History:

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 74 — 360 MPa view details
Tensile Strength 262 — 384 MPa view details
Elongation, A 19 — 47 % view details
Yield Strength, Rp0.2 74 — 360 MPa view details
Tensile Strength 262 — 384 MPa view details
Elongation, A 19 — 47 % view details

Physical Properties

Temperature

0 - 30°C
≥ 300°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Density 7.8 — 7.86 kg/dm³ view details
Poisson Coefficient val1
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view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Thermal Conductivity 73.2 W/(m∙°C) view details
Heat Capacity val1
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J/(kg∙°C) view details
Melting Temperature val1
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°C view details
Modulus of Elasticity 190 — 210 GPa view details
Density 7.8 — 7.86 kg/dm³ view details
Poisson Coefficient val1
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view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Thermal Conductivity 73.2 W/(m∙°C) view details
Heat Capacity val1
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J/(kg∙°C) view details
Melting Temperature val1
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°C view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
0.05 – 0.1
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.02
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cu
VALUE
≤ 0.07
UNIT
%
CAS NUMBER
7440-50-8
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
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

Cleveland-Cliffs, Product Data Sheets / Available at: www.clevelandcliffs.com

Heat Treatments

  • Magnetic anneal (recommended): Heating: 2 - 4°C (4 - 7°F) per minute; Hold temperature: 820 ± 20°C/1508 ± 36°F; Hold Time: A minimum of 60 minutes with an additional 15 minutes per each 5 mm (0.2 in.) thickness over 25 mm (1.0 in.); Cooling: 2 - 4°C (4 - 7°F) per minute until the change temperature is below 550 - 600°C (932 - 1112°F). The parts should remain in a protected atmosphere until the temperature of the parts is below 300°C (572°F).<br />Stress relief anneal (SRA): A low temperature anneal used to minimize adverse effects of production and machining processes. Minimal change to the grain structure is observed. Recommended guidelines are similar to a magnetic anneal, but with a maximum of 700 ± 20°C/1292 ± 36°F for hold temperature.