DIN 15402 Forged Duplex Hooks

  • Hooks are identified by hook number and material. Each hook number maintains identical dimensions across a range of different materials with its load capacity dependent on the material used. Shank hooks are forged and heat-treated for optimal strength and toughness and are available in single and double configurations in standard working loads to 1,100 tons. Standard design factor is 5:1.
  • Hook forgings are available in three increasingly stronger carbon and alloy steel materials:
  • DIN class P: Fine-grained carbon steel, St-E355/St-E420, similar to ASTMA573 Gr. 65
  • DIN class T: Structural low alloy steel, 34CrMo4 or 34CrNiMo6, similar to SAE 4135/4340
  • DIN class V: Super alloy steel, 34CrNiMo6 or 30CrNiMo8, similar to SAE 4340/4337
  • Forged hooks are also available to order, in bronze alloy or stainless steel for non-sparking or other special applications. Stainless steel hooks are forged from ANSI 304 or 316L stainless steel and bronze hooks are forged from a non-sparking aluminum-nickel bronze alloy (CuAl10Ni/C95500).
  • All hooks are supplied with certifications by serial number for mechanical and chemical properties including Charpy testing, and include 100% ultrasonic and magnetic particle non-destructive examination. Hooks include markings of fixed distances (“y” dimension in tables) which allow confirmation that no deformation has occurred in use or during proof testing. Class V hooks are API-2C compliant.
  • Please contact us for more details
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