Bevel Gear Precision Forged Roll Shafts for Heavy-Duty Applications

• 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 innovation and quality, emerging from a dynamic collaboration between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a market leader in China, Weirun sets the benchmark for excellence in alloy steel smelting and the manufacturing of superior forged products. Our journey since inception has been defined by pioneering advancements and an unwavering commitment to quality, earning us a prestigious reputation as a trusted name in the industry.
Our company is synonymous with exceptional quality, participating in a wide spectrum of projects, including alloy steel smelting, electroslag remelting, forging, and mold design. We have crafted an extensive industrial chain that flawlessly spans from material recycling to precision mold machining. Committed to surpassing quality expectations, we cater to both domestic and international markets, consistently meeting the highest industry standards.
Our expansive manufacturing complex, measuring an impressive 60,000 square meters, is outfitted with state-of-the-art technology. It features 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. The advanced facility includes 5-ton and 8-ton electro-hydraulic hammer production lines, modern mechanical processing and heat treatment equipment, sophisticated spectrometers, and an extensive array of physical and chemical testing apparatus. With fixed assets amounting to 153 million yuan and an industrial output value reaching 300 million yuan, our team comprises over 200 skilled professionals, including 20 elite technical experts. We proudly stand among the top fifty enterprises in Danyang City, recognized for our significant contributions in annual sales and tax.
Driven by a passion for continuous innovation and expansion, we strategically focus on recruiting diverse technical talent and forging partnerships with top domestic universities and research institutions. This visionary approach has led to remarkable technological breakthroughs, earning us 5 nationally authorized invention patents and 3 utility model patents, thereby cementing our status as an industry leader.
With an extraordinary annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products are indispensable across sectors such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by our ethos of 'pursuing excellence and building a world brand,' we align with global markets through a robust international brand strategy. Our commitment to excellence is further underscored by certifications including ISO9001, China CCS, France BV, and Germany TUV. As a dedicated provider of superior forged products, Weirun stands by professionalism, continually advancing our capabilities to deliver exceptional, 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.