Quenching and Tempering Steel Ring for Toothed Gears and Shafts

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• Molding Technics: Casting
• Application: Machinery Parts
• Material: Steel
• Heat Treatment: Normalizing
• Surface Treatment: Rough Machining
• Forging Tolerance: +/-0.5mm
• Standard: GB
• Certification: CE, RoHS, ISO 9001:2000, ISO 9001:2008
• International Standards: ASTM, AISI, DIN, JIS, BS
• Delivery Condition: Quenching+Tempering, Normalizing, Anealing
• Shape: Round Bar, Square, Shaft, Ring, Cylinder
• Delivery Surfaces: Black, Rough Machning Bright, Fine Maching Bright
• Alloy No: 9cr2mo, 18crmimo6, 30Cr2Ni2Mo
• Transport Package: Wooden Cartons
• Specification: Customization
• Trademark: weirun
• Origin: Jiangsu, China
• Production Capacity: 3000 Tons/Month

Product Description

Product Description

Chemical Composition (%):

	C	Si	Mn	P	S	Cr	Mo	Ni	Standard
9Cr2Mo	0.85-0.95	0.25-0.45	0.20-0.35	≤0.025	≤0.025	1.70-2.10	0.20-0.40	≤0.25	GB/T13314-2008
18CrNiMo7-6	0.15-0.21	≤0.4	0.50-0.90	≤0.025	≤0.035	1.50-1.80	0.25-0.35	1.4-1.7	EN 10084-2008
30Cr2Ni2Mo	0.26-0.34	0.17-0.37	0.50-0.80	≤0.020	≤0.020	1.80-2.20	0.30-0.50	1.80-2.20	GB/T3077-2015

Main Products

Company Profile

Jiangsu Weirun Forging Co., Ltd.
Founded in the milestone year of 2001, Jiangsu Weirun Forging Co., Ltd. stands as a beacon of innovation and pioneering spirit. With roots tracing back to Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., it has become a trailblazer in China's alloy steel smelting and forging sectors. Setting unrivaled standards, the company has mastered the art of creating diverse forged products, carving a niche as a leader in this domain.
With a steadfast commitment to excellence, our organization thrives in the specialized production and management of alloy steel smelting, electroslag remelting, forging, and mold crafting. We have meticulously cultivated a comprehensive industrial network, seamlessly weaving together material recycling, smelting, electroslag casting, forging, and precision machining of molds, which cater to both national and global demands with unmatched service.
Our strategic operations span a vast 60,000 square meter facility, brimming with advanced assets like three cutting-edge 1-ton electroslag furnaces and superior 3-ton and 10-ton models. Our mechanical expertise is further bolstered by two 2-ton air hammers, a 1-ton air hammer, and an accurate 0.75-ton air hammer, alongside fully automated electro-hydraulic hammer production lines of 5 tons and 8 tons each. Complementing this are our extensive mechanical processing and sophisticated heat treatment systems, high-precision spectrometers, and state-of-the-art physical and chemical testing equipment. With a sturdy foundation of 153 million yuan in fixed assets, we proudly realize an industrial output value reaching 300 million yuan. Our team, comprising over 200 dedicated individuals, includes more than 20 highly skilled technicians, securing our rank among Danyang City's top fifty enterprises with impressive annual sales and tax contributions.
Driven by our quest for excellence, we have strategically enriched our team with a variety of technical experts and fostered dynamic partnerships with prestigious domestic universities and research institutions. Our unwavering dedication to technological advancement and innovation is acknowledged with 5 national invention patents and 3 utility model patents, affirming our leadership and forward-thinking stance within the industry.
Boasting an outstanding annual production capacity exceeding 30,000 tons of steel ingots and a formidable forging capacity of 15,000 tons, our products serve a broad spectrum of industries such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Embodying the ethos of "pursuing excellence and building a world brand," we progress with determination, seamlessly integrating with international markets. Our international brand strategy is steadfast, maintaining the highest global standards. Our commitment to excellence is substantiated by certifications like ISO9001, China CCS, France BV, and Germany TUV. As a reliable and professional supplier and service provider of forged products, Weirun epitomizes professionalism and innovation, consistently delivering top-tier services through a focused, high-quality approach tailored to meet customer needs.

FAQ

• What is the difference between forging and casting?

  Forging: It is the process of transforming a solid from one shape to another. Casting: It is the process of transforming a shapeless liquid metal into a solid with a shape. The so-called casting is the process of casting molten metal into a model to obtain a casting. The casting profession focuses on the metal melting process and the control of processes during the casting process. Forging is a plastic forming process in the solid state, which can be divided into hot processing and cold processing. Forgings include extrusion, drawing, roughening, punching, and so on. Casting is a solid liquid solid process, while forging is a solid to solid process where a solid can change its shape into another shape at high temperatures. There are still differences in the shape process and process of the two.

• How to choose high-quality forgings?

  In the quality inspection of forgings, there are mainly external observation methods and internal inspection methods. The appearance method, as the name suggests, is to observe the appearance of the product, such as the shape, geometric dimensions, surface condition, etc. of the forging, in order to understand whether it meets the standards and whether there are external defects. Specifically, it is to check whether the external dimensions of the forging meet the specifications and whether there are defects on the surface, such as cracks, wrinkles, bubbles, indentations, pits, impurities, scratches, etc. on the surface of the forging. Internal testing mainly involves analyzing the chemical composition, macroscopic and microscopic structures, and mechanical properties of forgings. This inspection process requires the use of specialized instruments for high magnification inspection, with the aim of checking for any phenomena such as fractures and shrinkage within the forging, as well as defects such as dendrites and white spots, disordered flow lines, and throughflow. It also includes the tensile strength, ductility, hardness, plasticity, and heat resistance temperature of the forging.

• What are the characteristics of the forging process for blank forgings?

  The forging process of circular forgings mainly consists of the following processes: pier roughening, elongation, punching, and expanding. The difference between free forging and ring rolling processes is mainly in the process of expanding holes. In the production of ring forgings, free forging is usually used to expand the hole with a horse screw, while ring rolling is mainly used to expand the hole with rolling.