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Alloy unbounded cold hardening cast iron rollers

Material：Unbounded cold hardening cast iron
Size：φ400-1300
Hardness：58-70
Can be designed and customized according to requirements
Product description:
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Chemical composition (%)

CODE	C	Si	Mn	Cr	Ni	Mo
AD-1	1.20-1.60	0.30-1.00	0.60-1.40	0.50-1.20	0.20-1.20	0.20-0.80
AD-2	1.45-1.85	0.30-1.00	0.60-1.40	0.80-2.00	0.20-1.20	0.20-0.80
AD-3	1.75-2.15	0.30-1.00	0.70-1.30	1.80-2.50	1.00-1.50	0.20-0.80
AD-4	1.75-2.15	0.30-1.00	0.70-1.30	0.80-2.00	1.80-2.50	0.20-0.80
AD-5	1.90-2.30	0.30-1.00	0.70-1.30	0.50-1.20	0.20-1.20	0.20-0.80

Physical Property

CODE	Barrel hardness HS	Uniformity of roller body hardness HS	Roll neck hardness HS	impact toughness×10⁴J/m²
AD-1	35-50	≥500	≥1.0	≥4
AD-2	40-55	≥450	≥1.0	≥4
AD-3	50-65	≥350	≥0.5	≥5
AD-4	50-65	≥350	≥0.5	≥5

Half steel rolling rolls include integral, composite, and sleeve rolling products. It is made by adding alloying elements such as Mo, Cr, Ni, and other trace alloys to high carbon steel, and using special heat treatment processes for manufacturing. It has high wear resistance, strong toughness, and good resistance to hot cracking, with almost no decrease in hardness in the working layer.