Heavy-Duty Steel Square Shaft for Hot Forging and Processing

• 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 2001, Jiangsu Weirun Forging Co., Ltd. stands as a pioneering entity in China's alloy steel smelting and forged product manufacturing sector. Alongside its esteemed partners, Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., it has carved a niche as one of China’s earliest and most innovative enterprises in this domain.
Specializing in a broad spectrum of industrial projects, Jiangsu Weirun Forging Co., Ltd. excels in areas such as alloy steel smelting and electroslag remelting, complemented by the expert forging and mold manufacturing. Over the years, the company has meticulously crafted a comprehensive industrial chain that spans from material recycling to cutting-edge smelting, electroslag casting, forging, and precision mold machining - serving both domestic and global markets.
Sprawling across a vast 60,000-square-meter facility, our company is a powerhouse of production with three 1-ton, a 3-ton, and a monumental 10-ton electroslag furnaces. Our state-of-the-art infrastructure includes two 2-ton air hammers, a 1-ton, and a 0.75-ton air hammer, alongside sophisticated electro-hydraulic hammer lines of 5 and 8 tons. With an extensive array of mechanical processing and heat treatment equipment, spectrometers, and rigorous testing devices, the company boasts fixed assets of 153 million yuan and an industrial output of 300 million yuan. Employing over 200 skilled professionals, including 20 technical experts, we proudly rank among Danyang City's top fifty enterprises in annual sales and tax contributions.
To fuel its ambitious growth trajectory, Jiangsu Weirun Forging Co., Ltd. has actively recruited top-tier technical talent and forged strategic alliances with leading universities and research institutions in China. Through relentless innovation and technology acquisition, the company has been awarded 5 national invention patents and 3 utility model patents, underscoring its commitment to technological advancement and excellence.
Boasting an impressive annual production capacity exceeding 30,000 tons of steel ingots and a 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. Adhering to a rigorous standard of 'pursuing excellence and building a world brand,' Jiangsu Weirun Forging Co., Ltd. aligns with international benchmarks, having achieved esteemed certifications like ISO9001, China CCS, France BV, and Germany TUV. As a premier supplier and service provider, we are dedicated to delivering unparalleled quality, consistently exceeding customer expectations with our specialized expertise and unwavering commitment to high-caliber service.

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.