Durable Steel Square Ring for Cold Forging and Metal Processing

• 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.
Founded in 2001, Jiangsu Weirun Forging Co., Ltd. boasts a robust lineage through its esteemed affiliations with Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a pioneering juggernaut in China's alloy steel smelting and forged product manufacturing, it stands as one of the earliest enterprises to lead in this vital industrial domain.
With a focus on alloy steel smelting, electroslag remelting, forging, and mold manufacturing, the company has diligently cultivated a comprehensive industrial chain over years of dedicated development. This includes material recycling, smelting, electroslag casting, and the precise machining of molds, offering seamless services both domestically and on the global stage.
Spanning a vast factory space of 60,000 square meters, the company is equipped with three 1-ton, one 3-ton, and one 10-ton electroslag furnaces; two 2-ton, one 1-ton, and one 0.75-ton air hammers; along with 5-ton and 8-ton fully mechanized electro-hydraulic hammer production lines. A plethora of advanced mechanical processing and heat treatment equipment, alongside spectrometers and diverse physical and chemical performance testing devices, underpins its strong operational capabilities. With fixed assets of 153 million yuan and an industrial output value soaring to 300 million yuan, the company employs over 200 skilled professionals, including more than 20 with technical expertise, and proudly ranks among Danyang City's top fifty enterprises by annual sales and tax revenue.
In a bid to propel forward its ambitious growth plans, the company has actively recruited technical talents and forged strategic collaborations with distinguished universities and research institutions across China. Through a steadfast commitment to technology introduction and innovation, it has successfully secured 5 national authorized invention patents and 3 utility model patents, reinforcing its cutting-edge prowess.
Commanding an impressive annual production volume of over 30,000 tons of steel ingots and a forging capacity of 15,000 tons, Jiangsu Weirun's products find extensive applications across industries like wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Driven by the principle of 'pursuing excellence and building a world brand,' the company is dedicated to seamlessly blending with international markets. With an unwavering international brand strategy, it follows rigorous international standards and has achieved prestigious certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a vanguard in professional forged product supply and services, Weirun is resolute in its pursuit of a high caliber of expertise, consistently delivering superior services with a specialized approach to its valued customers.

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.