Durable Steel Forging Rings - JIS Certified, Annealed Finish

• 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 iconic year of 2001, Jiangsu Weirun Forging Co., Ltd. proudly inherits a prestigious legacy originating from the eminent Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As an avant-garde leader in China, we have continually set new standards in the intricate fields of alloy steel smelting and the sophisticated creation of a diverse range of forged masterpieces.
Driven by unwavering dedication, our enterprise stands out in the meticulous production and flawless management of alloy steel smelting, electroslag remelting, forging, and precision mold crafting endeavors. Over the years, we have crafted an expansive industrial chain that seamlessly encompasses material recycling, smelting, electroslag casting, forging, and precision machining of molds, rendering exceptional service to both domestic and international clientele.
Our strategically placed, expansive 60,000 square meter facility boasts an impressive suite of assets, featuring three cutting-edge 1-ton electroslag furnaces alongside superior 3-ton and 10-ton equivalents. Our mechanical expertise is enhanced by two 2-ton air hammers, a 1-ton air hammer, and an accurate 0.75-ton air hammer, all integrated with fully mechanized electro-hydraulic hammer production lines of 5 and 8 tons. Our comprehensive infrastructure includes wide-ranging mechanical processing and state-of-the-art heat treatment equipment, modern spectrometers, and advanced testing devices. With a robust asset base of 153 million yuan, we achieve an industrial output value reaching 300 million yuan. Our committed workforce of over 200, including more than 20 highly skilled technical experts, secures our place among Danyang City's top fifty enterprises, with notable annual sales and tax contributions.
In our steadfast pursuit of excellence, we have intentionally enriched our team with a variety of technical talents and nurtured dynamic partnerships with leading domestic universities and research institutions. Our tireless dedication to technological advancement and innovation has been honored with 5 national invention patents and 3 utility model patents, marking our leadership in the industry.
With a remarkable annual production capacity exceeding 30,000 tons of steel ingots and an impressive forging capacity of 15,000 tons, our products are extensively utilized across various industries, including 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 forward, seamlessly integrating with global markets. Our commitment to an international brand strategy is resolute, producing to the highest global standards. Our excellence is validated by esteemed certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a trusted professional supplier and service provider of forged products, Weirun epitomizes professionalism and innovation, consistently offering outstanding services by embracing a specialized, superior approach to meet customer demands.

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.