Steel billets

Blooms

Basics size of side [mm]	1 m billet density [kg]	Running meter /1Mg [mb]	The length in range [m]	Rounding corner radius [mm]
100	77	13,0	5,6 - 12,4	4
120	110	9,1	5,6 - 12,4	4
140	151	6,6	5,6 - 12,4	6
160	196	5,1	5,6 - 12,4	6

Square billets

Basics size of side [mm]		1 m billet density [kg]	Running meter /1Mg [mb]	The length in range [m]	Rounding corner radius [mm]
g	h
165	140	177	5,6	5,6 - 12,4	6

Round billets

Basics size [mm]	1 m billet density [kg]	Running meter /1Mg [mb]	The length in range [m]
g
170	175	5,7	5,6 - 12,4

a) billets cross section
romboidalnoœc:kw. 100 i 120 (± 3mm)
romboidalnoœc:kw. 140 i 160 (± 5mm)
romboidalnoœc:::::::::::165x140 (± 5mm)
romboidalnoœc:::::::::: fi 170 (+1/-3 mm)

rhomboidity: max diagonal difference
romboidalnoœc:8,0 mm (kw. 100,120,140)
romboidalnoœc:10,0 mm (165x140 ; kw. 160)

b) straightness
max difference 5mm/m but not higher than 50mm of overall length

c) twist
max twist 1^o/m

d) length of billet
5,6 - 12,4 m (± 100 mm)

e) surface quality
the billets are free from surface defects harmful for further working

f) internal quality
after processing billets are free from surface defects harmful for further working