Durable Steel Roll Shafts Incorporating Bevel Gear for Optimal Performance

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• 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. represents a groundbreaking collaboration between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. Leading the Chinese market, Weirun is renowned for its exceptional expertise in alloy steel smelting and its distinguished array of forged products. Our unwavering pursuit of innovative solutions and commitment to delivering superior quality have solidified our esteemed reputation within the industry since our inception.
Our company stands as an emblem of unmatched quality excellence, engaging in a diverse portfolio of projects like alloy steel smelting, electroslag remelting, forging, and mold design. We've meticulously crafted a comprehensive industrial chain, seamlessly integrating everything from material recycling to precision mold machining. Our commitment to excellence transcends borders, serving both domestic and international markets with the highest quality standards.
Covering an expansive 60,000 square meters, our state-of-the-art manufacturing complex boasts cutting-edge technology: three 1-ton, as well as larger 3-ton and 10-ton electroslag furnaces; two 2-ton, one 1-ton, and one 0.75-ton air hammers. Our advanced facilities also include 5-ton and 8-ton electro-hydraulic hammer production lines, modern mechanical processing, heat treatment equipment, sophisticated spectrometers, and a comprehensive array of physical and chemical testing apparatus. With fixed assets amounting to a substantial 153 million yuan, and an industrial output value soaring to 300 million yuan, we proudly sustain a workforce of over 200 skilled professionals, including 20 top-tier technical experts. Notably, we are ranked among the top fifty enterprises in Danyang City for our annual sales and tax contributions.
Driven by our passion for innovation and growth, we have strategically focused on recruiting a wide spectrum of technical talent and building partnerships with leading domestic universities and research institutions. This forward-thinking approach has led to significant technological advancements, earning us 5 nationally authorized invention patents and 3 utility model patents, further cementing our status as an industry leader.
With an impressive annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products are indispensable across various 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 align with the global market through a robust international brand strategy. Our commitment to international standards is evidenced by certifications like ISO9001, China CCS, France BV, and Germany TUV. Weirun, as a dedicated provider of forged products, upholds professionalism, continuously advancing our capabilities to offer unparalleled, 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.