Steels for Processing

V300MQA (MIL-S-8135)

High hardenability steel that reaches high mechanical resistance of 300 Ksi or 210 kgf/mm2, with good toughness. Used in the manufacturing of aircraft and helicopter landing gear parts (ex.: high mechanical resistance shafts), devices for aircraft stairways and engine jackets for satellite launch vehicles (SLV).

  • ABTN | ASTM | SAE | AISI: 300M / BS S155 / MIL-S-8135 e 8844
  • DIN | WNr: –
  • Chemical composition:
C %Mn %Cr %Ni %Mo %OTHERS %
0,400,700,801,800,40Si= 1,70 | V= 0,08

VB30

Medium-hardening steel, which achieves medium hardness, strength and toughness after treatment. Used in the manufacture of medium-sized parts requiring medium mechanical strength with good weldability, particularly in the oil exploration industry.

  • ABTN | ASTM | SAE | AISI: 8630
  • DIN | WNr: –
  • Chemical composition:
C %Mn %Cr %Ni %Mo %
0,300,900,900,800,40

VL30

Low hardenability steel, combining medium strength with high toughness after treatment. Used in the manufacture of smaller parts and/or those requiring material with good weldability, particularly in the oil exploration industry.

  • ABTN | ASTM | SAE | AISI: 4130
  • DIN | WNr: 1.7218
  • Chemical composition:
C %Mn %Cr %Mo %
0,300,500,950,20

VL40

Medium hardenability steel, which achieves medium hardness, strength and toughness after treatment. Used in the manufacture of medium-sized parts requiring medium mechanical strength, for the oil exploration, steel and capital goods industries.

  • ABTN | ASTM | SAE | AISI: 4140
  • DIN | WNr: 1.7225
  • Chemical composition:
C %Mn %Cr %Mo %
0,400,900,950,20

VL45

Medium-hardening steel, which achieves medium hardness, strength and toughness after treatment and is widely used in the manufacture of oil drilling tools (stabilizers and magnetic controls).

  • ABTN | ASTM | SAE | AISI: 4145H
  • DIN | WNr: –
  • Chemical composition:
C %Mn %Cr %
0,450,900,95

VM40

High hardenability steel, which achieves high mechanical strength after treatment. It is used to manufacture large general-purpose parts that require high hardness and/or mechanical strength, particularly for the steel, mining and oil exploration industries.

  • ABTN | ASTM | SAE | AISI: 4340
  • DIN | WNr: –
  • Chemical composition:
C %Mn %Cr %Ni %Mo %
0,400,700,801,800,25

VM50

High hardenability steel, which achieves high hardness and mechanical strength after treatment. Used in the manufacture of larger diameter bearings and gears, which require greater hardness and/or mechanical resistance.

  • ABTN | ASTM | SAE | AISI: 4350
  • DIN | WNr: –
  • Chemical composition:
C %Mn %Cr %Ni %Mo %
0,500,700,801,800,25