JIS SCM415 Alloy structural steel stockholders and suppliers from OTAI SPECIAL STEEL china. we have more 16 years experience in SCM415 steel supply.

SCM415 Steel is a high quality Quenched and Tempered Alloy Structural steel, It belong to the high quality medium carbon, Oil Quenched & Tempered Hardenss is 28-34 HRc.SCM415 Annealing delivery hardenss less than 250HB.

Related Specifications JIS A29/A29M DIN EN 10083/3 JIS G4053 GB GB/T 3077

Chemical composition
C(％) 0.38～0.43 Si(％) 0.15～0.35 Mn(％) 0.75～1.00 P(％) ≤0.035
S(％) ≤0.040  Cr(％) 0.80～1.10  Mo(％) 0.15～0.25
Form of Supply

JIS SCM415 Alloy structural steel, we can supply the SCM415 round bar, steel flat bar, plate, hexagonal steel bar and steel square block. SCM415 steel Round bar can be sawn to your required lengths as one offs or multiple cut pieces. SCM415 Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground steel Round bar can be supplied, providing a quality precision finished bar to tight tolerances.

Applications

SCM415 steel is a alloy structural steel. It is used for engineering structural, like high tensile shafts, bolts and nuts, gears, pinions and spindles. Locomotive traction with the big gear, supercharger drive gear, pressure vessel, rear axle, gear load of connecting rod and a spring clip,SCM415 can also be used to under 2000 m deep well of oil drill pipe joint and the fishing Alloy, and can be used for bending machine mould, etc

Regular size and Tolerance

Hot rolled SCM415 steel round bar: Ø5mm-200mm

Forging SCM415 steel bar: Ø140mm-3000mm

Hot rolled SCM415 steel plate: Thickness 10mm-200mm x width 100-2300mm

Forged SCM415 material steel plate: Thickness 150-1500mm x Width 100 x 3000mm

Others SCM415 Alloy Steel have not specified size, pls contact our experienced sales team.

Steel Material equivalent of SCM415
USA Germany China Japan France England Italy Poland Czechia Austria Sweden Spain
SAE/AISI/UNS DIN,WNr GB JIS AFNOR BS UNI PN CSN ONORM SS UNE
————- 15CrMO | 1.7262 15CrMo SCM415 15CD4.05 1501-620 | Cr31 X30WCRV93KU

 

SCM415 steel Heat treatment Related
  • Forging Of SCM415 steel-hot work alloy Alloy steel

Heat to 900-1100 °C(1652-2012°F)，forged temperature not below 843°(1550°F)

  • Annealing of SCM415 Alloy steel

Slowly heated to 800~850 ℃（1472~1562°F） and allow enough times, let the steel to be thoroughly heated, Then cool slowly at Maximum of 4°C（40°F）per hours. The SCM415 Alloy  steel will get MAX 235 HB （Brinell hardness）.

  • Hardening of SCM415 Alloy steel

SCM415 steels should be heated uniformly to 840-875°C (1544-1607°F) until completely heated through. If needed, the steels can be preheated at 300-500°C (572-932°F). About 30 min/per 25 mm of ruling section is to be provided and then the steels should be immediately quenched in oil.

  • Tempering of SCM415 Alloy steel

Tempering of SCM415 steels is performed at 500-700°C (932-1292°F), Soak well at the selected temperature and soak for at least one hour per 25mm of total thickness. Then cool in air. Low Tempering is not advised as tempering within this range will seriously reduce the impact value. (250-375°C)

Mechanical Properties and Physical Properties

The mechanical properties of SCM415 Alloy steels are outlined in the following table.

Typical steel Elastic modulus Bulk modulus (typical for steel)) Yield strength Tensile strength Poisson’s ratio Melting point
GPa GPa Mpa Mpa °C
190-210 140 415 655 0.27-0.30 1416
 Thermal Properties of JIS SCM415 Alloy Structure Steel
Thermal expansion co-efficient (@ 0-100°C/32-212°F) 12.2 µm/m°C 6.78 µin/in°F
Thermal conductivity (@ 100°C) 42.6 W/mK 296 BTU in/hr.ft².°F

 

Processing

SCM415 steel round bar and flat sections can be cut to your required sizes. SCM415 alloy teel ground bar can also be supplied, providing a high quality Alloy steel precision ground Alloy steel bar to your required tolerances. Alloy SCM415 steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.

Contact us for SCM415 Alloy Structure Alloy Steel

Contact our experienced sales team to help you with yourSCM415 Alloy steel questions and enquiry by Email or Telphone. The questions will be reply in 24 hours.

OTAI SPECIAL STEEL CO., LTD

Email: jack@otaisteel.com   TEL: 0086-769-33232622   FAX: 0086-769-88705839