Precision Gear Shaft Assembly - BS Standard Ring Shape, Quenching and Tempering

• 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. has become a distinguished leader in engineering precision, known for its exceptional craftsmanship and unwavering commitment to quality. A product of collaboration between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., Weirun shines in China's alloy steel market. Our relentless pursuit of innovation and excellence in quality has solidified our standing as pioneers in the industry.
Our company stands as a model of quality excellence, engaging extensively in alloy steel smelting, electroslag remelting, forging, and mold design. We've developed an all-encompassing industrial chain, harmoniously integrating processes from material recycling to precision mold machining. Our resolute commitment to excellence is recognized both domestically and internationally, reflected in our superior quality standards.
Our expansive 60,000 square meter facility is outfitted with advanced technology: 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 state-of-the-art infrastructure includes 5-ton and 8-ton electro-hydraulic hammer production lines, precise mechanical processing and heat treatment equipment, and comprehensive testing apparatus. With fixed assets valued at 153 million yuan and an industrial output of 300 million yuan, we employ over 200 skilled professionals, including 20 top technical experts. Our groundbreaking achievements rank us among Danyang City's top fifty enterprises in annual sales and tax contributions.
Our fervor for innovation drives us to attract diverse technical expertise and cultivate partnerships with premier domestic universities and research institutions. This forward-thinking approach has ushered in significant technological advancements, securing us 5 nationally approved invention patents and 3 utility model patents, cementing our leadership in the industry.
Boasting an impressive annual production of over 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products are essential to sectors like wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by 'pursuing excellence and building a world brand,' we integrate into global markets via a robust international brand strategy. Our dedication to international standards is underscored by certifications including ISO9001, China CCS, France BV, and Germany TUV. As a committed provider of forged products, Weirun pledges to uphold professionalism, continuously enhancing our capabilities to deliver unmatched, 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.