SAE 1137 Aceros estructurales y de construcción
Grupo de materiales:
Aleaciones Ferrosas / Aceros estructurales y de construcción
País/Estándar:
Estados Unidos / SAE
Actualizaciones de datos
Última actualización: 2024-06
Número total de actualizaciones: 4
Historial de actualizaciones
2020-06
2020-03
2018-10
Este material cuenta con 286 propiedades — aquí solo se muestra una parte.
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SAE 1137 Composición química
Criterios
Valor
Unidad
Número CAS
Criterios
C
Valor
0.32 – 0.39
Unidad
%
Número CAS
7440-44-0
Criterios
Mn
Valor
1.35 – 1.65
Unidad
%
Número CAS
7439-96-5
Criterios
P
Valor
≤ 0.030
Unidad
%
Número CAS
7723-14-0
Criterios
Pb
Valor
val1
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Unidad
%
Número CAS
7439-92-1
Criterios
S
Valor
val1
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Unidad
%
Número CAS
7704-34-9
SAE J403: 2014 / Composición química de aceros al carbono SAE
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SAE 1137 Propiedades físicas
Temperatura
Módulo de elasticidad
190 — 210
GPa
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Densidad
7.67 — 7.86
kg/dm³
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Coeficiente de Poisson
0.27 — 0.3
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Este material cuenta con 286 propiedades — aquí solo se muestra una parte.
Consulta propiedades físicas detalladas en distintas temperaturas y condiciones.
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SAE 1137 Tratamiento Térmico
- Preheating: Preheating until furnace stabilization in the 900 to 1200°F (482 to 649°C) range is recommended before heating parts above 1300°F (704°C) if the parts have previously been heat treated to a hardness greater than 35 HRC, have abrupt changes of section thickness, have sharp reentrant angles, have finished machined surfaces, have been welded, have been cold formed or straightened, have holes, or have sharp or only slightly-rounded notches or corners.
Annealing: Heated to 788°C (temperatures ≥ 704°C are to be cooled at a rate not to exceed 111°C per hour to below 538°C). Soaking time (for annealing, normalizing and austenitizing) is specified below. Air cooled to ambient temperature. Isothermal annealing treatments may be used provided equivalent hardness is obtained (heated to annealing temperature, soaked for the time specified above, cooled to a temperature below the critical, held for sufficient time to complete transformation, and air cooled to ambient temperature).
Subcritical annealing: When required, subcritical annealing shall be accomplished prior to hardening by heating to a set temperature between 1150 and 1250°F (621 and 677°C). Cooling to ambient temperature.
Pre-hardening stress relief: When required, pre-hardening stress relieving shall be done in accordance with AMS2759/11 prior to hardening by heating to a set temperature between 1000 and 1250°F (538 to 677°C). Cooling to ambient temperature.
Normalizing: Heated to 899°C. Circulated air or atmosphere is recommended for thicknesses greater than 76 mm. Normalizing may be followed by tempering or subcritical annealing.
Hardening (austenitizing and quenching): Heated to 843°C. The parts shall be cooled to or below the quenchant temperature or to a temperature low enough to achieve complete transformation, before tempering. Hardening quenchant should be oil, water or polymer. Prior to initial tempering parts may be snap tempered for 2 hours minimum at a temperature, usually 400°F (204°C), that is lower than the tempering temperature. Welded parts, and brazed parts with a brazing temperature above the normalizing temperature, shall be normalized before hardening. For welded or brazed alloys that are not normalized, the parts shall be annealed. Welded parts should be preheated. Parts identified as damage tolerant, maintenance critical, or fracture critical shall be in the normalized condition before hardening, unless the alloy is not normalized, in which case the part shall be annealed.
Tempering: Parts should be tempered within two hours of quenching. Suggested tempering temperatures:
for TS 621-862 MPa, HRB ≥ 91, HRC = 26 and oil or polymer quenchant is 482°C. For water quenchant is 538°C
for TS 862-1034 MPa, HRC 26-34 and oil or polymer quenchant is 329°C. For water quenchant is 482°C
for TS 1034-1172 MPa, HRC 33-38 and water quenchant is 427°C
for TS 1103-1241 MPa, HRC 36-40 and water quenchant is 371°C
for TS 1241-1379 MPa, HRC 40-43 and water quenchant is 316°C
Steel is not recommended for other TS ranges. Soaking time shall be not less than 2 hours plus 1 hour additional for each inch (25 mm) of thickness or fraction thereof greater than 1 inch (25 mm). Thickness is defined in AMS2759. When load thermocouples are used, the soak time shall be 2 to 3 hours. Multiple tempering cycles are permitted. When multiple tempering cycles are required, parts shall be cooled to ambient temperature between tempering treatments. When tempering cannot be started within 4 hours from the end of quenching, parts shall be snap tempered for 2 hours minimum at a temperature that is lower than the final tempering set temperature, usually 400°F (204°C). For parts having minimum tensile strength below 180 ksi (1241 MPa), straightening may be accomplished cold without stress relieving. For parts hardened and tempered to minimum tensile strength of 180 ksi (1241 MPa) and higher, straightening shall be accomplished during tempering, or by heating to not higher than 50°F (28°C) below the tempering temperature. Hot or warm straightening after tempering shall be followed by stress relieving. It is permissible to retemper at a temperature not higher than the last tempering temperature after straightening during tempering.
Soak time for annealing, normalizing, and austenitizing:
t ≤ 6.35 mm, minimum soak time (air or atmosphere) is 25 minutes or 18 minutes (salt)
6.35 < t ≤ 12.70 mm, minimum soak time (air or atmosphere) is 45 minutes or 35 minutes (salt)
12.70 < t ≤ 25.40 mm, minimum soak time (air or atmosphere) is 1 hour or 40 minutes (salt)
25.40 < t ≤ 38.10 mm, minimum soak time (air or atmosphere) is 1 hour and 15 minutes or 45 minutes (salt)
38.10 < t ≤ 50.80 mm, minimum soak time (air or atmosphere) is 1 hour and 30 minutes or 50 minutes (salt)
50.80 < t ≤ 63.50 mm, minimum soak time (air or atmosphere) is 1 hour and 45 minutes or 55 minutes (salt)
63.50 < t ≤ 76.20 mm, minimum soak time (air or atmosphere) is 2 hours or 1 hour (salt)
76.20 < t ≤ 88.90 mm, minimum soak time (air or atmosphere) is 2 hours and 15 minutes or 1 hour and 5 minutes (salt)
88.90 < t ≤ 101.60 mm, minimum soak time (air or atmosphere) is 2 hours and 30 minutes or 1 hour and 10 minutes (salt)
101.60 < t ≤ 114.30 mm, minimum soak time (air or atmosphere) is 2 hours and 45 minutes or 1 hour and 15 minutes (salt)
114.30 < t ≤ 127.00 mm, minimum soak time (air or atmosphere) is 3 hours or 1 hour and 20 minutes (salt)
127.00 < t ≤ 203.20 mm, minimum soak time (air or atmosphere) is 3 hours and 30 minutes or 1 hour and 40 minutes (salt)
> 203.20 mm, minimum soak time is 4 hours and 30 minutes for every 76 mm or increment of 76 mm greater than 203 mm (air or atmosphere) or 2 hours plus 20 minutes for every 76 mm or increment of 76 mm greater than 203 mm (salt)
Thickness is the minimum dimension of the heaviest section of the part.
Parts coated with copper plate or similar reflective coatings that tend to reflect radiant heat shall have their soak time increased by at least 50%, unless load thermocouples are used. This increase does not apply to salt bath heat treating, tempering, or sub-zero processing.
The parts shall be held for sufficient time to ensure that the center of the most massive area has reached temperature and the necessary transformation and diffusion have taken place.
Maximum soak time at temperature shall not exceed three times the minimum soak time including time additions for copper plating or similar reflective coating.
Longer times may be necessary for parts with complex shapes or parts that do not heat uniformly. - Bars and Mechanical Tubing over 62.5 mm in Nominal OD or Least Distance Between Parallel Sides: Hot finished, and normalized or otherwise heat treated to produce best machining qualities.
Forgings: Normalized or otherwise heat treated to produce best machining qualities.
SAE 1137 Propiedades mecánicas
Temperatura
Resistencia a la Tracción
610 — 680
MPa
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Dureza Brinell (HB)
149 — 255
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Alargamiento, A
≥ 10
%
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Reducción de área
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Límite elástico, Rp0.2
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SAE 1137 Materiales equivalentes internacionales
Mostrando 15 de 142 resultados.
Material
Estándar
País / Productor
Categoría de Equivalencia
Material
Estándar
ASME
País / Productor
Estados Unidos
Categoría de Equivalencia
Oficial
Las categorías de equivalencia reflejan la comparación de composición química y propiedades mecánicas — verifique siempre la idoneidad según la especificación aplicable a su aplicación.
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- 142Referencias cruzadas
- 9Composición
- 15Propiedades mecánicas
- 3Propiedades físicas
- 4Tratamiento térmico
- -Metalografía
- 3Maquinabilidad
- -Esfuerzo-Deformación
- -Conformabilidad
- -Fatiga
- -Fractura
- -Bicho raro
- -Uniones
- -Revestimientos
- 49Dimensiones
- -Tribología
- -Corrosión
- -Envejecimiento
- -Resistencia a la intemperie
- -Irradiación
- 61Proveedores Totales