Steel Forging Rings with DIN Standards, Annealed Delivery Condition, Shaft 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.
Founded in the pivotal year of 2001, Jiangsu Weirun Forging Co., Ltd. emerges from its esteemed predecessors, Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a distinguished forerunner in the industry, we have consistently set the gold standard in the complex fields of alloy steel smelting and the artisanal creation of a stunning array of forged products, establishing a legacy that reverberates throughout China.
With unwavering commitment and precision, our company specializes in the sophisticated production and exceptional management of alloy steel smelting, electroslag remelting, forging, and the intricate crafting of precision molds. Over time, we have carefully crafted an integrated industrial chain that seamlessly blends material recycling, smelting, electroslag casting, forging, and meticulous precision machining of molds. Our esteemed services extend to both domestic and international markets, setting us apart as industry leaders.
Our company is strategically stationed within a vast 60,000 square meter facility, showcasing an impressive spectrum of assets. We are equipped with cutting-edge technology, including three state-of-the-art 1-ton electroslag furnaces, alongside superior 3-ton and 10-ton models. Our mechanical capabilities are further advanced by two 2-ton air hammers, a 1-ton air hammer, and a precise 0.75-ton air hammer, all complemented by fully automated electro-hydraulic hammer production lines of 5 tons and 8 tons. Our comprehensive infrastructure is bolstered by extensive mechanical processing and advanced heat treatment equipment, state-of-the-art spectrometers, and sophisticated physical and chemical testing apparatus. With a robust foundation of 153 million yuan in fixed assets, we are proud to achieve an industrial output value reaching 300 million yuan. Our dedicated team of over 200 includes more than 20 highly skilled technical experts, ensuring our place among the top fifty enterprises in Danyang City, with remarkable annual sales and tax contributions.
In our relentless pursuit of excellence, we have strategically embraced diverse technical talents and fostered dynamic collaborations with prestigious domestic universities and research institutions. Our unwavering dedication to technological advancement and innovation has earned us 5 national authorized invention patents and 3 utility model patents, emphasizing our leadership and pioneering spirit in the industry.
Boasting an impressive annual production capacity that surpasses 30,000 tons of steel ingots and a formidable forging capacity of 15,000 tons, our products have extensive applications across numerous industries, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Driven by a philosophy of 'pursuing excellence and building a world brand,' we continually advance, seamlessly integrating with global markets. Our steadfast commitment to an international brand strategy is unwavering, producing at the pinnacle of global standards. Our pursuit of excellence is affirmed 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 exemplifies professionalism and innovation, consistently delivering exceptional services through a specialized, high-caliber approach designed to meet every customer need.

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.