High-Quality Steel Forgings with Quenching Treatment for Precision Shaft

• 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 vibrant amalgamation of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. Pioneering in the Chinese market, Weirun excels in the intricate artistry of alloy steel smelting and offers a dynamic range of forged products. Our unwavering tradition of trailblazing innovations and a steadfast commitment to top-tier quality has marked our success since inception.
At the heart of our operations is an uncompromising dedication to exceptional quality. Our enterprise passionately undertakes a diverse array of projects, including alloy steel smelting, electroslag remelting, forging, and mold crafting. We have meticulously engineered a comprehensive industrial chain that smoothly integrates material recycling, smelting, electroslag casting, forging, and precision mold machining. This seamless integration serves both domestic and international markets with a relentless commitment to excellence.
Spanning a colossal 60,000 square meters, our manufacturing base is a hub of cutting-edge technology: from three 1-ton electroslag furnaces to 3-ton and 10-ton electroslag furnaces; and advanced air hammers of varying capacities. Additionally, we boast sophisticated 5-ton and 8-ton electro-hydraulic hammer production lines. Our facilities are brimming with state-of-the-art mechanical processing and heat treatment equipment, top-tier spectrometers, and an exhaustive suite of testing tools for both physical and chemical analysis. With fixed assets valued at an impressive 153 million yuan, our industrial output value soars to 300 million yuan. An elite workforce of over 200 professionals, including 20 top-tier technical experts, empowers us to rank among the top fifty enterprises in Danyang City for annual sales and tax contributions.
In our quest for growth and innovation, we strategically focus on attracting diverse technical talents and nurturing alliances with leading domestic universities and research institutions. This progressive approach has led to groundbreaking technological advancements, earning us 5 national authorized invention patents and 3 utility model patents, thereby fortifying our position as an industry vanguard.
Boasting an astounding annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products are essential across sectors like wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by the principle of 'pursuing excellence and building a world brand,' we align with the global market through a resolute international brand strategy. Our commitment to global standards is demonstrated by accolades such as ISO9001, China CCS, France BV, and Germany TUV certifications. As a devoted supplier of forged products, Weirun is committed to professionalism and aims for perpetual enhancement of expertise, delivering unmatched high-quality services to our valued clients.

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.