central roller

roller 1.Material: alloy steel 2.Quality:ISO;API 3.Delivery time:50 days 4.We are a factory Roller

1.rollers in ZYZXDY are made from AISI 4145H MOD Alloy steel. 

  2. Strict UT inspection according to ASTM A-388 to guarantee high quality.

3.  Tungsten Carbide alloy buttons were inserted into blades so as to keep its hardness.

4. The physical properties are guaranteed one inch below the surface at normal temperature.

  Mechanical properties:

  Yield Strength:                        110Mpa Min (0.2% offset)

  Tensile Strength                      140MpaMin

  Elongation                               13% Min

  Reduction of Area                    45% Min

  Impact Strength(Charpy V)      54 Min

  Hardness                                 285HB Min   

central roller