Type: BS Round Bar
Standard:   BS4449-98, G250
Diameter: 12-40mm

Type: Plain Carbon Round Bar
Standard: GB700-88, Q215/Q235
Diameter: 12-40mm

Type: Qualified Carbon Round Bar
Standard: JIS G4051,S20C/ S45C
Diameter: 12-130mm

Type: Chromium Bearing Steel Round Bar 
Standard: YB9-68, GCr15, GCr15SiMn
Diameter: 12-85mm

Type: Hot Rolled Quality Carbon   Structural Round Bar
Standard: GB699-88, 10# - 70#
Diameter:12-130mm

Type: Hot Rolled Alloy Structural Round   Bar
Standard:   GB3077-88, 15Mn-70Mn, 20Mn2~50Mn2, 20Mn V, 27SiMn,
   15Cr~50Cr, 20Mn VB, 15CrMo-42CrMo,
   20CrMnMo, 20CrNiMo, 20CrMnSi, 45MnB

Diameter: 12-130mm
Chemical   Composition(20Mn2):
C:0.17-0.24        Si:0.17-0.37
Mn:1.40-1.80
Chemical   Composition(40Cr):
C:0.37-0.44    Si:0.17-0.37
Mn:0.50-0.80   Cr:0.80-1.10
Chemical   Composition(15CrMo):
C:0.12-0.18     Si:0.17-0.37
Mn:0.40-0.70    Mo:0.40-0.55
Cr:0.80-1.10

ype: Round Bar for Anchor Chains
Standard: YB(T) 66-87, M15, M20Mn, M30Mn2
Diameter: 12-130mm