Aluminium Tense Scrap

Aluminium Scrap TENSE – ISRI Details

TENSE is the ISRI classification for Mixed Aluminium Castings, commonly traded worldwide for remelting and secondary aluminium production.

ISRI Definition (Extracted & Paraphrased)

TENSE shall consist of all clean aluminium castings, which may include automobile and airplane castings, but must not contain ingots.
The material must be free from iron, brass, dirt, and other non-metallic materials.
Oil and grease content shall not exceed 2%

TENSE.SCRAP.FILE5

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Primary Features of Aluminium Scrap TENSE

• Material Form: Aluminium castings
  (engine blocks, transmission housings, pump bodies, machinery cast parts)

• Condition: Clean and dry

• Oil & Grease: Maximum 2%

• Contamination:

  • No iron or steel

  • No brass

  • No dirt or non-metallic debris

  • No ingots allowed

• Typical Use: Remelting for secondary aluminium alloys

• Typical Aluminium Content: Approximately 95–99%, depending on alloy mix and cleanliness

• Common Sources:

  • Automotive engine blocks

  • Gearbox housings

  • Industrial aluminium cast components

    TENSE.SCRAP.FILE5

Physical Characteristics

• Irregular, bulky casting pieces

• Rough surface texture from casting process

• Possible machining marks

• Ferrous attachments must be completely removed