High-Quality Steel Square Shaft for Hot Forgings and Rolling Mills

• 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 leader in China, established by the esteemed Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As one of the foremost enterprises in the alloy steel smelting sector, the company is renowned for its mastery in crafting diverse forged products, from inception to perfection.
Jiangsu Weirun excels in producing and managing a vast array of projects, including the artful smelting of alloy steel, sophisticated electroslag remelting, and the precision forging and mold manufacturing. With years of dedicated development, it has achieved a comprehensive industrial chain, from material recycling to advanced electroslag casting and precision mold machining, serving both domestic and international markets with excellence.
Spanning an impressive 60,000 square meters, Jiangsu Weirun's factory is a powerhouse of innovation, equipped with state-of-the-art facilities. It boasts three 1-ton electroslag furnaces, a mighty 3-ton electroslag furnace, and a formidable 10-ton furnace. The arsenal includes two 2-ton air hammers, enhanced by a 1-ton and a 0.75-ton air hammer. Cutting-edge, fully mechanized electro-hydraulic hammer lines of 5 and 8 tons further enhance production capabilities. With substantial mechanical processing, heat treatment equipment, and sophisticated testing devices, the company is a titan in the industry. Holding fixed assets of 153 million yuan and an industrial output value soaring to 300 million yuan, Jiangsu Weirun employs over 200 dedicated professionals, including 20+ technical experts, ranking prominently among Danyang City's elite top fifty enterprises by annual sales and tax revenue.
In a quest for accelerated growth, Jiangsu Weirun has embraced a robust strategy of talent acquisition, aligning with prestigious domestic universities and research institutions. This forward-thinking approach to technology introduction and innovation has secured 5 national invention patents and 3 utility model patents, further fortifying its position as an industry innovator.
Jiangsu Weirun boasts an impressive annual production capacity exceeding 30,000 tons of steel ingots, alongside a formidable forging capacity of 15,000 tons. Its high-quality products are integral to diverse sectors including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. With an unwavering pursuit of excellence and a vision to build a world-renowned brand, the company is spearheading its integration into the global market with a steadfast international brand strategy. Adhering to international standards, Jiangsu Weirun proudly holds certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a trusted partner and supplier of premier forged products, Weirun is committed to elevating its expertise, offering unparalleled, specialized services to its esteemed clientele.

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.