Steel Forging Rings - ASTM/AISI/DIN/JIS/BS Certified, Quenching + Tempering

• 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 landmark year of 2001, Jiangsu Weirun Forging Co., Ltd. stands tall as a beacon of innovation and excellence, drawing its rich heritage from Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a trailblazer in China, we have firmly established ourselves as the epitome of quality and ingenuity in alloy steel smelting and the creation of a diverse range of forged products.
With an unwavering commitment to precision and excellence, our company excels in the intricate production and strategic management of alloy steel smelting, electroslag remelting, forging, and mold crafting projects. Over the years, we have meticulously crafted a comprehensive industrial chain that seamlessly weaves together material recycling, smelting, electroslag casting, forging, and precision mold machining, serving both domestic and international markets with unparalleled distinction.
Strategically positioned within a vast 60,000 square meter facility, our company is fortified with an impressive suite of assets, including three leading-edge 1-ton electroslag furnaces and their superior 3-ton and 10-ton counterparts. Our mechanical capabilities are further amplified by two robust 2-ton air hammers, a 1-ton air hammer, and a precisely calibrated 0.75-ton air hammer. This is complemented by fully mechanized electro-hydraulic hammer production lines of 5 tons and 8 tons each. Our all-encompassing setup includes extensive mechanical processing and sophisticated heat treatment equipment, cutting-edge spectrometers, and advanced performance testing devices. With a formidable foundation of 153 million yuan in fixed assets, we proudly achieve an industrial output value soaring to 300 million yuan. Our dedicated workforce of over 200 includes more than 20 highly skilled technical professionals, solidifying our esteemed position among Danyang City's top fifty enterprises with commendable annual sales and tax revenue.
In our tireless quest for excellence, we have strategically infused our ranks with diverse technical talents and cultivated dynamic collaborations with esteemed domestic universities and research institutions. Our relentless commitment to technological advancement and innovation has been recognized with 5 national authorized invention patents and 3 utility model patents, underscoring our leadership and pioneering spirit within the industry.
Boasting an impressive annual production capacity exceeding 30,000 tons of steel ingots and a formidable forging capacity of 15,000 tons, our products are integral to industries such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by the ethos of "pursuing excellence and building a world brand," we stride confidently into international markets. Our unwavering commitment to an international brand strategy ensures our production meets the highest global standards. This excellence is validated 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 paragon of professionalism and innovation, consistently delivering exceptional services through a specialized, high-caliber approach to meet and exceed customer expectations.

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.