Vanderbijlpark, Gauteng, Republic of South Africa
+27 16 910 7000 | Fraud Hotline: +27 86 999 0784 (Anonymous)

Rings (Sleeves) – Universal Mills

  • Static Cast Monobloc (ACS, SBA & Nodular Grades) (400 to 1600 mm dia.)
  • Vertical Centrifugal Cast (ACS & SBA up to 1100mm dia)

SARCO: Roll Material Grades - Application Guidelines

Click on the SARCO Grade to view material spec sheets

Alloy Cast Steel (Near & hypereutectoid)

Rail, Billet & Heavy Structural Sections Mill

Universal Beam Mill

Work Rolls: Plate, Steckel and Hot Strip Mill

Bar, Rod, Medium and Small Sections Mill

Temper / Skinpass Mill

Microstructure Constituents
Sarco Grade Barrel Hardness (Shore “C”) Description

Breakdown

Roughing

Edgers

Intermediate

Finishing

Roughing

Finishing

Horizontal Sleeves

Vertical Sleeves

Roughing

Edger

Work Rolls

Roughing

Intermediate

Finishing

Work Rolls

Back-up Rolls

Ferrite

Pearlite

Bainite

Martensite

Carbides

Flake Graphite

Spheroidal Graphite
AS 701 30 – 60 Cr, (Ni), (Mo) alloyed ● ● ● ● ● ●
AS 703 45 – 53 Cr, Ni, Mo alloyed ● ● ●
AS 704 40 – 55 Cr alloyed ● ● ● ● ● ● ● ● ● ● ● ●
AS 705 35 – 60 Cr, Ni, Mo alloyed ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
AS 707 50 – 65 High Cr, (Ni), (Mo) alloyed ● ● ●
AS 708 40 – 55 Cr, Mo alloyed ● ● ● ● ● ● ● ● ● ● ● ●
AS 709 28 – 45 Cr, Mo alloyed ● ● ●

Graphitic Steel

Rail, Billet & Heavy Structural Sections Mill

Universal Beam Mill

Work Rolls: Plate, Steckel and Hot Strip Mill

Bar, Rod, Medium and Small Sections Mill

Temper / Skinpass Mill

Microstructure Constituents
Sarco Grade Barrel Hardness (Shore “C”) Description

Breakdown

Roughing

Edgers

Intermediate

Finishing

Roughing

Finishing

Horizontal Sleeves

Vertical Sleeves

Roughing

Edger

Work Rolls

Roughing

Intermediate

Finishing

Work Rolls

Back-up Rolls

Ferrite

Pearlite

Bainite

Martensite

Carbides

Flake Graphite

Spheroidal Graphite
GS 706 40 – 55 Cr, Ni, Mo alloyed ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

High Speed Steel

Rail, Billet & Heavy Structural Sections Mill

Universal Beam Mill

Work Rolls: Plate, Steckel and Hot Strip Mill

Bar, Rod, Medium and Small Sections Mill

Temper / Skinpass Mill

Microstructure Constituents
Sarco Grade Barrel Hardness (Shore “C”) Description

Breakdown

Roughing

Edgers

Intermediate

Finishing

Roughing

Finishing

Horizontal Sleeves

Vertical Sleeves

Roughing

Edger

Work Rolls

Roughing

Intermediate

Finishing

Work Rolls

Back-up Rolls

Ferrite

Pearlite

Bainite

Martensite

Carbides

Flake Graphite

Spheroidal Graphite
HSS 700 70 – 85 Mainly V, Cr, Mo, W alloyed ● ● ● ●

Nodular Cast Iron (Pearlitic structure)

Rail, Billet & Heavy Structural Sections Mill

Universal Beam Mill

Work Rolls: Plate, Steckel and Hot Strip Mill

Bar, Rod, Medium and Small Sections Mill

Temper / Skinpass Mill

Microstructure Constituents
Sarco Grade Barrel Hardness (Shore “C”) Description

Breakdown

Roughing

Edgers

Intermediate

Finishing

Roughing

Finishing

Horizontal Sleeves

Vertical Sleeves

Roughing

Edger

Work Rolls

Roughing

Intermediate

Finishing

Work Rolls

Back-up Rolls

Ferrite

Pearlite

Bainite

Martensite

Carbides

Flake Graphite

Spheroidal Graphite
PN 710 45 – 55 Cr, Ni alloyed ● ● ● ● ● ● ● ● ● ● ● ●
PN 711 53 – 63 Cr, Ni, (Mo) alloyed ● ● ● ● ● ● ● ● ● ●
PN 712 60 – 70 Cr, Ni, (Mo) alloyed ● ● ● ● ● ● ● ● ● ●

Nodular Cast Iron (Acicular structure)

Rail, Billet & Heavy Structural Sections Mill

Universal Beam Mill

Work Rolls: Plate, Steckel and Hot Strip Mill

Bar, Rod, Medium and Small Sections Mill

Temper / Skinpass Mill

Microstructure Constituents
Sarco Grade Barrel Hardness (Shore “C”) Description

Breakdown

Roughing

Edgers

Intermediate

Finishing

Roughing

Finishing

Horizontal Sleeves

Vertical Sleeves

Roughing

Edger

Work Rolls

Roughing

Intermediate

Finishing

Work Rolls

Back-up Rolls

Ferrite

Pearlite

Bainite

Martensite

Carbides

Flake Graphite

Spheroidal Graphite
PBN 715 55 – 65 Cr, Ni, Mo alloyed ● ● ● ● ● ● ● ● ● ● ● ●
BN 716 57 – 75 Cr, Ni, Mo alloyed ● ● ● ● ● ● ● ● ● ●
BN 718 40 – 55 (Cr), Ni, Mo alloyed ● ● ● ● ● ● ● ● ●

Indefinite and Enhanced Chill Cast Iron

Rail, Billet & Heavy Structural Sections Mill

Universal Beam Mill

Work Rolls: Plate, Steckel and Hot Strip Mill

Bar, Rod, Medium and Small Sections Mill

Temper / Skinpass Mill

Microstructure Constituents
Sarco Grade Barrel Hardness (Shore “C”) Description

Breakdown

Roughing

Edgers

Intermediate

Finishing

Roughing

Finishing

Horizontal Sleeves

Vertical Sleeves

Roughing

Edger

Work Rolls

Roughing

Intermediate

Finishing

Work Rolls

Back-up Rolls

Ferrite

Pearlite

Bainite

Martensite

Carbides

Flake Graphite

Spheroidal Graphite
IC 733 70 – 85 Cr, Ni, Mo alloyed ● ● ● ● ● ●
IC 734 70 – 85 Cr, Ni, Mo alloyed ● ● ● ● ●

High Chrome Cast Iron

Rail, Billet & Heavy Structural Sections Mill

Universal Beam Mill

Work Rolls: Plate, Steckel and Hot Strip Mill

Bar, Rod, Medium and Small Sections Mill

Temper / Skinpass Mill

Microstructure Constituents
Sarco Grade Barrel Hardness (Shore “C”) Description

Breakdown

Roughing

Edgers

Intermediate

Finishing

Roughing

Finishing

Horizontal Sleeves

Vertical Sleeves

Roughing

Edger

Work Rolls

Roughing

Intermediate

Finishing

Work Rolls

Back-up Rolls

Ferrite

Pearlite

Bainite

Martensite

Carbides

Flake Graphite

Spheroidal Graphite
HC 765 65 – 85 Cr, Ni, Mo alloyed ● ● ● ●