TESTING FACILITIES & QUALITY ASSURANCE

 

What is steel?

  • Steel is an alloy
  • Carbon from 0.15 % up to 2.11%
  • Manganese, Chromium, Nickel,  Molybdenum

Types of Carbon Steel:

  • Low carbon steel(0.15–0.30% )
  • Medium carbon steel(0.30–0.60%)
  • High carbon steel(0.60–2.11%)

Application of steel:

  • Construction
  • Transportation
  • Consumer Products

Role of rib in steel bars:

  • Deformed steel bars provided ribs
  • These ribs minimize slipping
  • Increase bond B/W the two materials
  • The ribs should be uniformly spaced

Steel Standards:

  • American society for testing materials
  • We follow ASTM 615 & ASTM 706
  • We also follow BSI 4449 which  is British standard institute
  • Both these standards having its own characteristics

Types of Common Steel Grades:

  • G40
  • G60
  • G75

FF STEEL Follow:

  • ASTM615
  • ASTM706
  • BS4449

FF STEEL PRODUCTION RANGE:

  • q3’’’ or 10mm
  • q4’’’ or 12mm q5’’’ or 16mm q6’’’ or 20mm
  • q7’’’ or 22mm q8’’’ or 25mm q9’’’ or 28mm
  • q10’’’ or 32mm
  • 1’’’ = 3.175mm
  • 1 inch = 25.4mm
  • 1 inch = 8’’’

What is quality?

  • Quality is a journey not destination
  • Customer satisfaction
  • Satisfaction of End User
  • Fitness for use
  • Conformance to specifications

Relation Between Steel Bar Size And Bending Machine Pin Diameter:

Bend dia when steel bar is bend at certain angle, a standard pin diameter is required for each size
Standards for 3,4 & 5 sooter, the pin diameter will be 3.5d ,for 6,7&8 sooter it will be 5d & for 10 ,11 sooter it will be 7d