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GB:chemical component GB1499-1998,size and dimension YB/T2011-2044
Specification : 100*100,120*120,130*130,140*140,150*150,160*160.
Length:6m,9m, 12m
Material:Q195 Q235B
Material standard
Section tolerance:square billet:+1.0/-2.0----+3.0/-1.0mm plate billet:thickness:+/-2.0MM thickness:+/-3.0MM
Length tolerance:+/-200MM
Section diagonal tolerance: 3.5-8.0MM
Square section dimension protrusions requirements: <1242MM, Not allowed;=1242MM, <=2MM >1242MM, <=3MM
Break end(cut) expanded deformation <1242MM
Square billet:not control; plate billet: <=10MM
Surface tilt:less than section 0.1
curvature:each 1M less than 10MM
torsion resistance:length <=5M, <=11.; length<=7.5M, <=5.
material 3SP/PS chemical component%:C Mn Si S P
Square steel billet
