These rolls are bimetallic and consist of a wear resistant working layer (shell material) and a ductile iron (SG) core. Working layer (shell material) hardness ranges from 65ShC to 85ShC.
Applications of these rolls include:
Alloy Cast Steel (ACS), Graphitic steel and Nodular Iron (Pearlitic and Acicular) grades are monobloc and static cast. Customer hardness and microstructure
requirements are achieved through careful selection of material specification and heat treatment cycles. They vary in size (weight) from a few hundred kgs to
approximately 50 tons and are classified as large, medium or small.
Large / Heavy Rolls
(<10 ton final mass) (monobloc static cast)
Medium Size Rolls
(<10 ton final mass) (monobloc static cast)
Small Section Rolls
(<2 ton final mass) (monobloc static cast)
Click on the SARCO Grade to view material spec sheets
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 | ● | ● | ● | |||||||||||||||||||||
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 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||
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 | ● | ● | ● | ● | ||||||||||||||||||||
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 | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ||||||||||||||
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 | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||||||||
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 | ● | ● | ● | ● | ● | |||||||||||||||||||
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 | ● | ● | ● | ● | ||||||||||||||||||||
