Precision Steel Square Ring for Hot Forging and Metalwork

• 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. is a trailblazer in the Chinese forging industry. This esteemed entity includes Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., marking its legacy as one of the pioneering enterprises in alloy steel smelting and the crafting of a diverse range of forged products.
Specializing in an array of sophisticated projects, Jiangsu Weirun excels in alloy steel smelting, electroslag remelting, intricate forging, and state-of-the-art mold manufacturing. Meticulously evolving over the years, the company has seamlessly integrated a comprehensive industrial ecosystem. This includes efficient material recycling, high-quality smelting, precision electroslag casting, advanced forging techniques, and precise mold machining, serving both domestic and international markets with unparalleled expertise.
Jiangsu Weirun's expansive 60,000-square-meter facility is a powerhouse of innovation and productivity. Equipped with a suite of cutting-edge machinery, it boasts three 1-ton, a 3-ton, and a 10-ton electroslag furnaces, alongside a robust collection of air hammers and cutting-edge electro-hydraulic hammer lines. The company possesses extensive mechanical processing and heat treatment capabilities, complemented by sophisticated spectrometers and comprehensive testing devices. With fixed assets valued at 153 million yuan and an impressive industrial output of 300 million yuan, the company proudly supports over 200 dedicated employees, including a team of more than 20 technical experts. Distinguished in Danyang City, Weirun ranks within the top fifty enterprises for annual sales and tax contributions.
In its relentless pursuit of excellence, Jiangsu Weirun has embraced a dynamic strategy of talent acquisition and strategic partnerships. Collaborating with esteemed universities and research institutions across China, the company perpetually innovates, securing 5 national invention patents and 3 utility model patents. This commitment to technological advancement propels their growth and reinforces their industry leadership.
With an impressive annual capacity exceeding 30,000 tons of steel ingots and 15,000 tons of forged products, Jiangsu Weirun's exceptional offerings are integral to pivotal sectors, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Upholding a mission of 'pursuing excellence and building a world brand,' the company vigorously aligns with international markets and adheres to global standards. Certified by ISO9001, China CCS, France BV, and Germany TUV, Weirun is poised as a premier supplier and service provider of forged products, steadfastly committed to delivering superior quality and specialized customer service, fortifying its reputation as a leader in forging expertise.

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.