Custom Gear Shaft Bar with Quenching and Tempering for Industrial Use

• 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 beacon of engineering excellence and innovative collaboration. Arising from the dynamic alliance of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., Weirun is celebrated as a luminary within the Chinese sector. Our unsurpassed expertise in alloy steel smelting and our exquisite selection of forged products underscore our esteemed reputation. Since our inception, we have been unwavering in our pursuit of innovation and excellence, cementing our status as an industry frontrunner.
Jiangsu Weirun is synonymous with superior quality, engaging in a comprehensive range of operations including alloy steel smelting, electroslag remelting, forging, and mold design. We have meticulously developed a flawless industrial chain, seamlessly integrating processes from material recycling to precision mold machining. Our steadfast commitment to quality transcends borders, guaranteeing that our products meet the highest standards of excellence both in domestic and international markets.
Our vast manufacturing facility covers an impressive 60,000 square meters and is equipped with cutting-edge technology. It features three 1-ton, and larger 3-ton and 10-ton electroslag furnaces, plus two 2-ton, one 1-ton, and one 0.75-ton air hammers. Our advanced infrastructure also includes 5-ton and 8-ton electro-hydraulic hammer production lines, state-of-the-art mechanical processing and heat treatment equipment, precision spectrometers, and a full array of physical and chemical testing tools. With fixed assets valued at 153 million yuan and an industrial output value of 300 million yuan, our team of over 200 skilled professionals, including 20 leading technical experts, drives our success. These achievements rank us among the top fifty enterprises in Danyang City for annual sales and tax contributions.
Guided by an unwavering passion for innovation and growth, Jiangsu Weirun has strategically attracted a wealth of technical expertise, forging partnerships with prestigious domestic universities and research facilities. This forward-thinking approach has sparked significant technological breakthroughs, resulting in 5 nationally recognized invention patents and 3 utility model patents, solidifying our leadership position within the industry.
With an impressive annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products serve crucial roles across an array of sectors including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Inspired by our motto of 'pursuing excellence and building a world brand,' we seamlessly integrate into the global marketplace through a comprehensive international brand strategy. Our steadfast adherence to international standards is validated by certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a dedicated supplier of forged products, Weirun remains committed to professionalism, persistently enhancing our capabilities to deliver unmatched, high-quality services to our esteemed 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.