Durable Round Bar Forged Metal Ring for Toothed Gear Production

• 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 pivotal year of 2001, Jiangsu Weirun Forging Co., Ltd. emerges from a distinguished lineage linked to Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a trailblazer across China, Weirun stands at the forefront, setting the standard in alloy steel smelting and the meticulous crafting of a diverse array of forged products.
With unrivaled dedication and focus, Jiangsu Weirun Forging Co., Ltd. excels in the sophisticated production and meticulous management of alloy steel smelting, electroslag remelting, forging, and mold crafting projects. Over the years, we have strategically developed a comprehensive industrial chain. This chain flawlessly integrates material recycling, smelting, electroslag casting, forging, and precision mold machining. We proudly serve both domestic and international markets, consistently delivering excellence and innovation.
Strategically located on an expansive 60,000 square meter site, our company is equipped with a formidable range of assets. These include three avant-garde 1-ton electroslag furnaces alongside superior 3-ton and 10-ton counterparts. Our mechanical prowess is further augmented by two 2-ton air hammers, a 1-ton air hammer, and a precise 0.75-ton air hammer. Complementing these are fully mechanized electro-hydraulic hammer production lines rated at 5 tons and 8 tons each. Our setup is comprehensive, with extensive mechanical processing and advanced heat treatment equipment, state-of-the-art spectrometers, and sophisticated physical and chemical performance testing devices. With a solid foundation of 153 million yuan in fixed assets, we proudly achieve a stunning industrial output value of 300 million yuan. Our dedicated team of over 200 includes more than 20 highly skilled technical professionals, solidifying our esteemed position among Danyang City's top fifty enterprises, celebrated for exemplary annual sales and tax revenue.
In our relentless pursuit of excellence, we have strategically infused our workforce with a variety of technical talents. We nurture dynamic partnerships with esteemed domestic universities and leading research institutions. Our steadfast commitment to technological innovation has been duly recognized, earning us 5 national authorized invention patents and 3 utility model patents. These accolades underscore our leadership and pioneering role in the industry.
With a remarkable annual production capacity of over 30,000 tons of steel ingots and an impressive forging capacity of 15,000 tons, our products are extensively applied across vast industries like wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by the ethos of "pursuing excellence and building a world-renowned brand," we charge ahead, seamlessly integrating into international markets. Our steadfast commitment to an international brand strategy ensures production to the highest global standards. Our excellence is endorsed by prestigious certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a trusted professional supplier and service provider of forged products, Weirun stands as a beacon of professionalism and innovation, consistently delivering exceptional services by maintaining a specialized, high-caliber approach 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.