Gear Shaft Assembly - ASTM Standard Shaft, Quenching and Tempering Treatment

• 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 precision and cooperative innovation. Emerging from a powerful collaboration between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., Weirun is celebrated for its unparalleled expertise in alloy steel smelting and a rich lineup of meticulously crafted forged products. Our inception marked a relentless pursuit of pioneering innovations and an unwavering commitment to quality, solidifying our position as industry trailblazers.
Our company epitomizes quality excellence, engaging in a diverse spectrum of activities including alloy steel smelting, electroslag remelting, forging, and mold design. We have perfected a comprehensive industrial chain, seamlessly integrating every stage from material recycling to precision mold machining. Our steadfast dedication to excellence is recognized across global markets, ensuring adherence to the highest quality standards both domestically and internationally.
Spanning an expansive 60,000 square meters, our state-of-the-art manufacturing facility is equipped with cutting-edge advancements: featuring three 1-ton and larger 3-ton and 10-ton electroslag furnaces; two 2-ton, one 1-ton, and one 0.75-ton air hammers. Our sophisticated infrastructure is further complemented by 5-ton and 8-ton electro-hydraulic hammer production lines, advanced mechanical processing and heat treatment equipment, precise spectrometers, and an exhaustive suite of physical and chemical testing tools. With fixed assets reaching an impressive 153 million yuan and an industrial output value ascending to 300 million yuan, we proudly employ a dedicated team of over 200 skilled professionals, including 20 top technical experts. Our remarkable accomplishments rank us among the top fifty enterprises in Danyang City for annual sales and tax contributions.
Fueled by our ardor for innovation and growth, we have strategically prioritized attracting diverse technical expertise and forging alliances with leading domestic universities and research institutions. This visionary approach has catalyzed significant technological advancements, earning us 5 nationally approved invention patents and 3 utility model patents, fortifying our leadership in the industry.
With a formidable annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity reaching 15,000 tons, our products serve as indispensable components across myriad sectors including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by the ethos of 'pursuing excellence and building a world brand,' we integrate seamlessly into the global market through a robust international brand strategy. Our unwavering commitment to international standards is evidenced by certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a dedicated provider of forged products, Weirun persistently upholds the principles of professionalism, constantly enhancing our capabilities to deliver unparalleled, high-quality services to our 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.