Wholesale Spiculate Bainitic Nodular Cast Iron Rolls Grade I(SGAI) for Pre-finishing Stand Suppliers, OEM/ODM Company

Spiculate Bainitic Nodular Cast Iron Rolls(Centrifugal)SGAI can improve the production efficiency of the pre-finishing rolling stand, and reduce downtime during the production process and the frequency of roll replacement, thereby reducing production costs. It has wear resistance and can withstand the friction and wear of metal blanks during high-speed rolling, extending the service life of the roll. SGAI rolls have high strength and toughness and can withstand high pressure and impact loads, ensuring the stability and safety of the rolling process. The pre-finishing rolling stand has high requirements on the cold hardening performance of the rolls. The Spiculate Bainitic Nodular Cast Iron rollers(Centrifugal)SGAI can maintain good hardness and shape stability under high temperatures to ensure the dimensional accuracy of the rolled products. SGAI rolls are suitable for various pre-finishing rolling stands and can meet the pre-finishing rolling needs of metal billets of different sizes and materials. The acicular bainitic ductile iron roll (centrifugal) SGAI has a lower manufacturing cost, but its performance can still meet the requirements of the pre-finishing mill stand and is cost-effective.

Hardness HSD: 55-78
Nickel composition %: 3.01-3.5
Suitable for racks: refined and rolled
Usage: Blooming and slabbing mills; large, medium, small section mills, wire mills, and narrow strip mills;pre-finishing stands of high-speed wire mills.

Bainitic Nodular Cast Iron Rolls (SGA)

Chemical Composition %
Symbol	C	Si	Mn	P	S	Cr	Ni	Mo	Mg
SGAⅠ	2.90-3.60	1.20-2.20	0.20-0.80	≤0.01	≤0.03	0.20-1.00	3.01-3.50	0.50-1.00	≥0.04
SGAⅡ	2.90-3.60	1.00-2.00	0.20-0.80	≤0.01	≤0.03	0.30-1.50	3.51-4.50	0.50-1.00	≥0.04

Prosperities & Application
Symbol	Hardness	Tensile Strength	Dimension	Application
Symbol	HSD	MPa	MM	Application
SGAⅠ	55-78	≥350	￠300-1000	Blooming and slabbing mills; large, medium, small section mills, wire mills, and narrow strip mills;pre-finishing stands of high-speed wire mills.
SGAⅡ	60-80	≥350	￠300-1000

Huzhou Zhonghang Roll Co., Ltd. is professional China Spiculate Bainitic Nodular Cast Iron Rolls Grade I(SGAI) for Pre-finishing Stand suppliers and OEM/ODM Spiculate Bainitic Nodular Cast Iron Rolls Grade I(SGAI) for Pre-finishing Stand company. The company's predecessor was Cangnan County Roller Factory in Zhejiang Province, which was founded in 1992, and obtained the batch of roll production licenses issued by the former Ministry of Metallurgy in 1996. It is one of the earliest domestic manufacturers of metallurgical rolls.
In 2001, it was renamed Huzhou Zhonghang Roll Co., Ltd., and relocated to Leidian Industrial Zone, Deqing County in 2015 to coordinate with the implementation of the Hangzhou Canal Comprehensive Insurance Project. It was renamed Huzhou Zhonghang Roll Co., Ltd. The company is located in the Hangjiahu Plain, covering an area of 36,500 square meters. It is located across the river from the thousand-year-old town of Tangxi. It is 900m away from the Leidian exit of Shenjiahu Expressway, 300m away from Provincial Highway 304, and 25 kilometers away from Hangzhou.

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