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1.0718 11SMnPb30
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1.4057 (R18) X17CrNi16-2

1.0715 11SMn30

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Description

1.0715 (11SMn30) is a low-carbon, free-cutting steel alloy that belongs to the group of non-alloyed steels. It is known for its excellent machinability due to the addition of sulfur and phosphorus. The addition of these elements promotes the formation of free-cutting sulfide particles and improves the chip formation during machining.

1.0715 (11SMn30) is also known as 9SMn28 or 11SMn37 depending on the manufacturer. It has a relatively low tensile strength and is not suitable for applications that require high strength or hardness. However, its excellent machinability and good toughness make it suitable for the production of small, intricate components such as screws, nuts, bolts, and studs.

Additionally, this material is used in the production of components for various industries, such as the automotive industry, where it is commonly used in the manufacture of fittings, shafts, and gears. It can also be used in the production of hydraulic and pneumatic components, as well as in the manufacturing of parts for appliances and electronics.

Application Areas

Application Areas

1.0715 (11SMn30) is a low carbon, free-cutting steel that is known for its excellent machinability. It is often used in applications where high precision and good surface finish are required. Some of the common application areas of 1.0715 (11SMn30) material are:

  1. Automotive industry: Due to its excellent machinability, 1.0715 (11SMn30) is commonly used in the automotive industry for the production of various precision components such as shafts, gears, and studs.
  2. Manufacturing industry: This material is used in the production of a wide range of machine parts such as screws, bolts, nuts, and fasteners. Its excellent machinability and good surface finish make it ideal for applications that require high precision.
  3. Electronics industry: 1.0715 (11SMn30) is also used in the production of electronic components such as connectors, pins, and sockets. Its high machinability and good surface finish make it ideal for applications that require high precision and small tolerances.
  4. Construction industry: This material is used in the construction industry for the production of various fittings and fasteners. Its good machinability and ability to form small parts make it ideal for use in plumbing and HVAC systems.
  5. Aerospace industry: Due to its excellent machinability and high precision, 1.0715 (11SMn30) is also used in the aerospace industry for the production of various precision components.
Technical Details

Technical Details

CHEMICAL COMPOSITION

Element Chemical Composition (%)
C 0.14 – 0.19
Si 0.15 – 0.40
Mn 1.00 – 1.30
P max 0.11
S max 0.36
Pb 0.15 – 0.35
N max 0.012

MECHANICAL PROPERTIES

Property Value
Tensile strength, Rm 580-780 MPa
Yield strength, Re 320-580 MPa
Elongation, A 10-18%
Modulus of elasticity 190-210 GPa
Poisson’s ratio 0.27-0.30
Fatigue limit 200-280 MPa
Hardness 160-220 HB (annealed)

Note: The values in this table are for informational purposes only and may vary depending on the specific manufacturer and processing methods used.

PHYSICAL PROPERTIES

Property Value
Density 7.85 g/cm3 (0.283 lb/in3)
Melting point 1420-1460°C (2588-2660°F)
Thermal conductivity 50 W/(m*K) at 20°C
Specific heat capacity 460 J/(kg*K) at 20°C
Electrical resistivity 0.19-0.20 Ω*mm2/m at 20°C
Modulus of elasticity 200 GPa (29,000 ksi)
Poisson’s ratio 0.29
Coefficient of thermal expansion 11.7 µm/(m*K) at 20°C