Durable Steel Forging Rings, Normalized Finish, Round Bar Shape

• 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.
Established in the pivotal year of 2001, Jiangsu Weirun Forging Co., Ltd. stands as a beacon of innovation and legacy, drawing its roots from the esteemed Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. A trailblazer in China's alloy steel sector, Weirun has carved a niche by setting exemplary standards in the art of alloy steel smelting, skillfully crafting a magnificent range of forged products that are celebrated across industries.
With unwavering resolve and precision, our company excels in the intricate processes of alloy steel smelting, electroslag remelting, forging, and the meticulous crafting of precision molds. Over the years, we have artfully designed a seamless industrial chain that encompasses everything from material recycling and smelting to electroslag casting, forging, and finely-tuned mold machining. This holistic approach has enabled us to deliver unparalleled service to a wide spectrum of domestic and international clients, making us a preferred choice in the marketplace.
Nestled within an expansive 60,000 square meter facility, our company is fortified with a powerful arsenal of advanced machinery. We proudly feature three high-tech 1-ton electroslag furnaces, complemented by robust 3-ton and 10-ton versions. Our mechanical suite is enriched with two 2-ton air hammers, a 1-ton air hammer, and a precise 0.75-ton air hammer, supplemented by fully automated electro-hydraulic hammer production lines of 5 tons and 8 tons. The array of our mechanical processing capabilities includes cutting-edge heat treatment equipment, sophisticated spectrometers, and top-tier physical and chemical testing devices. With a solid investment of 153 million yuan in fixed assets, we achieve a remarkable industrial output value of 300 million yuan. Our team of over 200 dedicated professionals features more than 20 highly skilled technical experts, cementing our standing as one of Danyang City's top fifty enterprises in terms of annual sales and tax contributions.
In our relentless pursuit of innovation, we have strategically attracted a diverse pool of technical talent while nurturing collaborative ventures with leading domestic universities and research bodies. Our determination to lead in technological advancement is evidenced by our portfolio of 5 national authorized invention patents and 3 utility model patents, solidifying our stature as an industry leader.
With a commanding annual production capacity that surpasses 30,000 tons of steel ingots and a formidable 15,000-ton forging capacity, our products are widely utilized in numerous sectors, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Anchored by our guiding principle of 'pursuing excellence and building a world brand,' we seamlessly integrate into international markets with an unwavering commitment to global standards. Our dedication is affirmed by prestigious certifications such as ISO9001, China CCS, France BV, and Germany TUV. As an esteemed provider of forged products, Weirun embodies professionalism and innovation, consistently delivering superior service and adhering to a specialized, high-caliber approach to meet diverse customer needs around the globe.

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.