S550 1.7mm Steel Shot Inquiry | Second Quenching Castings Blasting Treatment Requirements

• warranty

  1 Years
  type

  blasting media
• customized support

  OEM
  model number

  S550
• usage

  Shot Blasting
  abrasive grain sizes

  7-120
• Hardness

  40-50 HRC
  Shape

  Round
• Color

  Black
  MOQ

  1 Ton
• Advantage

  High Working Efficiency
  Package

  25kgs/bag
• Standard

  SAE J444
  Bulk Density

  4.2g/cm3
• Raw material

  Steel
  Durability

  2800 Times
• Warranty

  1 Year
  Quality

  High Qulaity

Verify actual heat treatment and grading before selecting S550 steel shot for casting work.

Quenching evidence

The title requests second quenching while the detail gives no treatment record. Confirm actual processing and applicable hardness inspection rather than treating that phrase as a verified batch condition or performance advantage.

Code and size

S550 is the actual specification while the title also names 1.7 mm. Agree the intended grading convention and supplied distribution, including the meaning of the separate broad grit entry, before defining machine and casting acceptance.

• Actual heat treatment records
• S550 grading convention
• Requested 1.7mm distribution
• Roundness, hardness and density
• Casting surface trial

Operating acceptance

Efficiency and durability wording provides no controlled casting result. Request actual media and workpiece reports; no reuse life, guaranteed removal rate, certified grading or qualified heat-treatment performance is established.