Acicular Nodular Iron (SGA) Rolls for Tube Mill

Product Description

We can provide the full ranges of rolls for the Bar & Wire mills, covering roughing rolls, intermediate rolls and finishing rolls.
Spheroidal graphite cast iron roll
Properties
Thanks to its higher content of Ni and Mo alloys, pearlite, basinite and martensite matrixes with excellent performance are produced. The graphite si spherical form, demonstraing good heat transfer property and high tensile strength. Through changing the struture into basinite of marensite matrix, chemical compostion of needly-like spherical iron of heat treatment, a dense reticular primary cementite with high wear-resistance is produced
Chemical Analysis

Designation of rolls	C	Si	Mn	P	S	Ni	Cr	Mo	Mg
CrMo semi-chilled SG cast iron rolls	2.9/3.6	0.8/2.5	0.4/1.2	≤0.25	≤0.03		0.2/0.6	0.2/0.6	>0.04
CrMo indefinite chilled SG cast iron rolls	2.9/3.6	0.8/2.5	0.4/1.2	≤0.25	≤0.03		0.2/0.6	0.2/0.6	>0.04
NiCrMo indefinite chilled SG cast iron rolls (I)	2.9/3.6	0.8/2.5	0.4/1.2	≤0.25	≤0.03	0.5/1.0	0.2/0.6	0.2/0.6	>0.04
NiCrMo indefinite chilled SG cast iron rolls (II)	2.9/3.6	0.8/2.5	0.4/1.2	≤0.25	≤0.03	1.0/2.0	0.3/1.2	0.2/0.8	>0.04
Pearlitic nodular cast iron rolls (I)	2.9/3.6	1.4/2.2	0.4/1.0	≤0.15	≤0.03	1.5/2.0	0.1/0.6	0.2/0.8	>0.04
Pearlitic nodular cast iron rolls (II)	2.9/3.6	1.2/2.0	0.4/1.0	≤0.15	≤0.03	2.0/2.5	0.2/1.0	0.2/0.8	>0.04
Pearlitic nodular cast iron rolls (III)	2.9/3.6	1.0/2.0	0.4/1.0	≤0.15	≤0.03	2.5/3.0	0.2/1.2	0.2/0.8	>0.04
bainitic nodular cast iron rolls (I)	2.9/3.6	1.2/2.2	0.2/0.8	≤0.10	≤0.03	3.0/3.5	0.2/1.0	0.5/1.0	>0.04
bainitic nodular cast iron rolls (II)	2.9/3.6	1.2/2.0	0.2/0.8	≤0.10	≤0.03	3.5/4.5	0.3/1.5	0.5/1.0	>0.04

Physical Properties

Designation of rolls	Barrel hardness (HSD)	Neck hardness (HSD)	Tensile strength (MPa)
CrMo semi-chilled SG cast iron rolls	40~55	32~50	>300
CrMo indefinite chilled SG cast iron rolls	55~70	35~55	>300
NiCrMo indefinite chilled SG cast iron rolls (I)	48~70	35~55	>320
NiCrMo indefinite chilled SG cast iron rolls (II)	48~70	35~55	>320
Pearlitic nodular cast iron rolls (I)	45~55	35~55	>450
Pearlitic nodular cast iron rolls (II)	55~65	35~55	>450
Pearlitic nodular cast iron rolls (III)	62~72	35~55	>450
bainitic nodular cast iron rolls (I)	55~78	32~45	>350
bainitic nodular cast iron rolls (II)	60~80	32~45	>350

Microstructure

Designation of rolls	Barrel hardness (HSD)	Neck hardness (HSD)	Tensile strength (MPa)
CrMo semi-chilled SG cast iron rolls	40~55	32~50	>300
CrMo indefinite chilled SG cast iron rolls	55~70	35~55	>300
NiCrMo indefinite chilled SG cast iron rolls (I)	48~70	35~55	>320
NiCrMo indefinite chilled SG cast iron rolls (II)	48~70	35~55	>320
Pearlitic nodular cast iron rolls (I)	45~55	35~55	>450
Pearlitic nodular cast iron rolls (II)	55~65	35~55	>450
Pearlitic nodular cast iron rolls (III)	62~72	35~55	>450
bainitic nodular cast iron rolls (I)	55~78	32~45	>350
bainitic nodular cast iron rolls (II)	60~80	32~45	>350

Application

Designation of rolls	Application
CrMo semi-chilled SG cast iron rolls	Section mill, bar mill, roughing stands of wire-rod mill, work roll of rail mill
CrMo indefinite chilled SG cast iron rolls	Section mill, bar mill, intermediate and finishing stands of wire-rod mill
NiCrMo indefinite chilled SG cast iron rolls (I)	Section mill, bar mill, intermediate and finishing stands of wire-rod mill
NiCrMo indefinite chilled SG cast iron rolls (II)	Section mill, bar mill, intermediate and finishing stands of wire-rod mill
Pearlitic nodular cast iron rolls (I)	roughing stands of bar mill and wire-rod mill
Pearlitic nodular cast iron rolls (II)	roughing stands of bar mill and wire-rod mill
Pearlitic nodular cast iron rolls (III)	roughing stands of bar mill and wire-rod mill
bainitic nodular cast iron rolls (I)	roughing stands of bar mill and wire-rod mill
bainitic nodular cast iron rolls (II)	roughing stands of bar mill and wire-rod mill

---

>> New Arrival Skmei 9250 Luxury Quartz Watch Wrist Moon Phrase Waterproof 30 Meters Customized Logo
>> 2021 New Popular Mini Fan Portable Rechargeable Handheld Fan Auto Oscillating Desktop Small Usb Fan with LCD Screen
>> Custom CNC Turn Milling 4, 5 Axis Machining Stainless Steel Brass Aluminum 5052 7075 6061-T6 Medical Parts
>> OEM Fashion Leather Strap Skeleton Wristwatches Luxury Female Automatic Hand Watches Customized Private Label Watch
>> Factory Direct Sale Impact Crusher Mobile Crushing Plant
>> Large Sized Conventional Lathe Model Cw62125c/2000
>> Flood Control Board, Removable Flood Gate
>> Explosion-Proof Stainless Steel Solid Front Pressure Gauges 257 S3 En837-1
>> New Fashion Solid Color Sports Plus Velvet Sweatshirt Long-Sleeved Pullover Casual Women Hoodies
>> 9klp230 Flat Die Pellet Machine 400kg/H Animal Cow Feed Making Processing Chicken
>> Manufacturer Direct Sale Alloy Flower Bracelets Shiny Pink Diamond Bangle Bracelets Exquisite Slide Charm Ladies Bracelets
>> Customized Electronics Products Packing Rigid Box Smart Sport Watch Gift Package Packaging Boxes With Window
>> High Quality Diesel Engine High Pressure Hydro Blasting Pump 20000psi
>> Stainless Steel 304 Perforated Metal Screen Sheet 4' X 8'
>> Hot Selling Suspenders Weight Lifting Back Support Brace Work Safety for Men
>> Guangzhou Renlang vertical big power picosecond laser 755nm tattoo removal machine pico machine factory price for sale
>> Custom Multi Cavities Plastic Cap Injection Mould Moulding Mineral Water Bottle Cap Mold
>> High Quality Plastic Basin Injeciton Moulding Machine / Making Machinery
>> Women′s Winter Wool Scarf Ladies Customized Logo Scarf Knitted Warm Scarf
>> Grass Smart Cutting Machine Cutter Turn Remote Control Lawn Mower