Standardkvalitet, B-halt ca 18%

S 48-50% (47% min)
Fe 44-46 % (44% min)

5 – 10mm, 10-50 mm (min 80% inom intervallet)

P 23 – 25% (23% min)
Si 2-3% (3,5% max)
Mn 1% (3% max)

10 – 60mm (min 80% inom intervallet)

Si 58 – 65%
Ca 28-35%
Al 1,5% max
C 1% max

7-20mm (min 80% inom intervallet)