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Home » Produtos » Pelotas para Alto-Forno

Pelotas para Alto-Forno

- + Pellet BF Standard

Chemical Analysis - (% dry basis)

Typical Guaranteed

min max

Fe (ISO 2597) 66.72 66.30

FeO (K2Cr2O7 titrant) 0.29 0.35

SiO2 (ISO 11535) *1 2.0 2.3

Al2O3 (ISO 11535) *2 0.5 0.6

CaO (ISO 11535) *3 1.64 1.40

MgO (ISO 11535) *3 0.15 0.10

P (ISO 4687) 0.046 0.050

S (ISO 9686) 0.004 0.010

H2O (ISO 3087) 1.44 3.00

Cu (ISO 11535) 0.003 0.010

TiO2 (ISO 11535) 0.046 0.060

V2O5 (ISO 11535) 0.007 0.010

Na2O (ISO 11535) 0.036 0.045

K2O (ISO 11535) 0.011 0.020

Mn (ISO 11535) 0.057 0.070

Zn (ISO 11535) 0.002 0.020

B2 0.82 0.75

_{*1 - ISO 2598 is also a used procedure. *2 - ISO 6830 is also a used procedure. *3 - EDTA titrant is also a used procedure.}

Metallurgical Analysis

Typical Guaranteed

min max

LTD +6.3mm (ISO 13930) (%) 83 80

LTD -0.5mm (ISO 13930) (%) 12 13

Swelling 60 min (ISO 4698) (%) 15 20

Delta P (ISO 7992) (mmH2O) 15 20

dR/dt (ISO 7992) (%O2/min) 1.6 1.2

Reducibility (ISO 7215) (%) 80 70

Physical Analysis - (Natural basis)

Typical Guaranteed

min max

CCS-16+12.5(Kgf/pellet) (ISO 4700) 308 270

Tumble+6.3 (ISO 3271) (%) 93.6 93.0

Abrasion -0,5 (ISO 3271) (%) 5.7 6.0

Sizing Analysis (%)

Typical Guaranteed

min max

-19+16mm (ISO 4701) 5.6 10.0

-16+8mm (ISO 4701) 93.8 85.0

-6.3mm (ISO 4701) 1.36 3.00

- + Pellet BF Medium Basicity

- + Pellet BF High Basicity