Payment & Shipping Terms:
|Grain Size:||≥6 Grade||H:||≤2.0ppm|
Φ80-Φ1200mm MC3 roller,structural alloy steel roller,alloy tool steel roller
Forged steel:Φ80-Φ1200mm,Square steel:80-1200mm.
Length:3-16M,or according to customer drawing
Grain size≥6 grade
Nonmetallic inclusion:H≤2.0 T≤2.0
Dia tolerance:-0/+3mm Surface
delivery condition:black skin/polish/lathe machining
UT standard:GB/T 6402 or SEP1921CLASS C/C,D/D,E/E.
Melting process:EAF+LF+VD Ingot(bottom pour/argon protection+ forging+tempering+black skin polish(lathe machining)+ GB/T6402-91ⅡUT+ trim two end
GB/T3077-1999 structural alloy steel
DIN 7527-6,EN10204,SEP1921,EN10228-3,EN10250,EN10083,GB/T1299-2200,alloy tool steel Heat treatment:N/A+Q/T or according to customer’s demand
Forging process flow quality control: Raw material steel ingot into warehouse(test the chemical content) → Cutting→ Heating(Furnace temperture test) → Heat treatment after forging(Furnace temperture test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal diamention, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment
Features of our products:
Hot roll includes two parts that is core of aluminium foil mill and roller shell,The common material of working roll of cold roll includes 9Cr,9Cr2,9Crv,8CrMoV etc,cold roll needs surface quenching,hardness HS45~105.The common material of hot roll includes 55Mn2,55Cr,60CrMnMo,60SiMnMo etc.Common roll includes three type that is cast steel roll,cast iron roll and forging roll,there is a few of hard alloy steel roll(tungsten steel roll) on the bar and shape rolling mill.