Durable Gear Shaft Assembly - DIN Standard Cylinder with Annealing Delivery Condition

• 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. is a shining example of engineering precision and visionary innovation. Originating from a fruitful partnership between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., Weirun has carved out a respected niche within China's competitive market, renowned for its unmatched expertise in alloy steel smelting and an impressive portfolio of exquisitely forged products. From the very beginning, our journey has been characterized by relentless innovation and an uncompromising commitment to maintaining the highest quality standards, securing our position as a trailblazer in the industry.
Our company epitomizes excellence, participating in a wide array of initiatives, including alloy steel smelting, electroslag remelting, forging, and mold design. We have masterfully developed an integrated industrial chain, covering every detail from material recycling to precision mold machining. Our unwavering dedication to quality resonates globally, meeting the demands of both domestic and international markets with exceptional standards.
Our cutting-edge manufacturing facility spans an impressive 60,000 square meters and is equipped with the latest technology: including three 1-ton, alongside larger 3-ton and 10-ton electroslag furnaces; two 2-ton, one 1-ton, and one 0.75-ton air hammers. Our advanced infrastructure features 5-ton and 8-ton electro-hydraulic hammer production lines, state-of-the-art mechanical processing, and heat treatment equipment, precise spectrometers, and a full range of physical and chemical testing instruments. With fixed assets of an impressive 153 million yuan, and industrial output value reaching 300 million yuan, we proudly employ over 200 skilled professionals, including 20 top technical experts. Our remarkable achievements place us among the top fifty enterprises in Danyang City for annual sales and tax contributions.
With a focus on innovation and growth, our strategy emphasizes attracting technical expertise and forging partnerships with leading universities and research institutions. This proactive approach has resulted in significant technological advancements, earning us 5 nationally approved invention patents and 3 utility model patents, thereby solidifying our leadership in the industry.
Our formidable production capabilities include an annual production capacity of over 30,000 tons of steel ingots and a forging capacity reaching 15,000 tons. Our products play a crucial role across various industries such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by our commitment to 'pursuing excellence and building a world brand,' we integrate seamlessly into the global market through a strong international brand strategy. Our dedication to international standards is evident in certifications like ISO9001, China CCS, France BV, and Germany TUV. Weirun remains steadfast in our commitment to professionalism, consistently enhancing our capabilities to provide 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.