Drop Forging Steel Ring with JIS Standards and Normalizing Delivery Condition

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• 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. proudly carries forward a rich legacy initiated by Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As an esteemed forerunner in China, we have set the gold standard in alloy steel smelting and the creation of a diverse array of forged products, spearheading innovation and quality.
With an unwavering focus on excellence, we specialize in the sophisticated production and management of alloy steel smelting, electroslag remelting, forging, and mold craft projects. Over the years, we have intricately developed a comprehensive industrial chain, smoothly blending material recycling, smelting, electroslag casting, forging, and precision mold machining. Our services, distinguished by their quality, meet the demands of both domestic and international markets with unparalleled expertise.
Our strategically expansive 60,000 square meter facility is a testament to our strength, boasting a remarkable suite of assets, including three cutting-edge 1-ton electroslag furnaces, alongside superior 3-ton and 10-ton counterparts. Our mechanical capabilities are further enhanced by two 2-ton air hammers, a 1-ton air hammer, and an exacting 0.75-ton air hammer, all gracefully complemented by fully mechanized electro-hydraulic hammer production lines of 5 tons and 8 tons each. Our comprehensive infrastructure includes extensive mechanical processing and advanced heat treatment apparatus, 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 an industrial output value towering at 300 million yuan. Our committed team of over 200 includes more than 20 highly skilled technical professionals, ensuring our esteemed position among Danyang City's top fifty enterprises, celebrated for our commendable annual sales and tax contributions.
In our relentless quest for excellence, we have astutely infused our organization with a diverse array of technical talents and nurtured dynamic partnerships with prominent domestic universities and research institutions. Our steadfast commitment to technological advancement and innovation is powerfully demonstrated by our 5 national authorized invention patents and 3 utility model patents, affirming our leadership and distinguished standing within the industry.
Boasting an impressive annual steel ingot production capacity exceeding 30,000 tons and a formidable forging capacity of 15,000 tons, our products are widely deployed across diverse industries including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by the philosophy of 'pursuing excellence and building a world brand,' we advance confidently, seamlessly integrating with global markets. Our unwavering commitment to an international brand strategy is reflected in our adherence to the highest global standards. Our excellence is certified by prestigious accreditations 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 delivering outstanding services with a specialized, high-caliber approach to meet our customers' 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.