Custom Steel Components with Quenching for Enhanced Transmission Systems

• 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. represents a pinnacle of engineering expertise and collaborative innovation, brought to life through a synergistic partnership between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a beacon of industry excellence in China, Weirun has become synonymous with mastery in alloy steel smelting and the creation of a diverse range of meticulously forged products. From its inception, the company has embarked on an unwavering journey towards pioneering innovation and uncompromising quality, fortifying its revered status as a front-runner in the industry.
Our company stands as a paragon of quality excellence, engaging in an impressive spectrum of initiatives that span alloy steel smelting, electroslag remelting, forging, and mold design. We have meticulously developed an all-encompassing industrial chain that seamlessly integrates all stages from material recycling to precision mold machining. Our resolute dedication to superior quality resonates beyond borders, catering to both domestic and international markets with unparalleled standards of excellence.
Our cutting-edge manufacturing facility sprawls across a vast 60,000 square meters and boasts the latest technological advancements: it houses 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. The facility is further enhanced by 5-ton and 8-ton electro-hydraulic hammer production lines, sophisticated mechanical processing and heat treatment equipment, precision spectrometers, and a comprehensive array of physical and chemical testing devices. With fixed assets totaling an impressive 153 million yuan, alongside an industrial output value peaking at 300 million yuan, we employ over 200 dedicated professionals, including 20 top-tier technical experts. Our outstanding accomplishments place us among the distinguished top fifty enterprises in Danyang City for annual sales and tax contributions.
Driven by our passion for innovation and growth, we have strategically focused on acquiring a vast array of technical expertise and forging strategic alliances with leading domestic universities and research institutions. This forward-thinking approach has yielded remarkable technological advancements, earning us 5 nationally recognized invention patents and 3 utility model patents, thereby reinforcing our premier status as leaders in the industry.
With an impressive annual production capacity that exceeds 30,000 tons of steel ingots and a forging capability reaching 15,000 tons, our products play an indispensable role across a wide array of sectors, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by the principle of 'pursuing excellence and building a world brand,' we strategically integrate into the global marketplace with a robust international brand strategy. Our steadfast adherence to international standards is evidenced by certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a committed provider of forged products, Weirun remains focused on upholding the highest standards of professionalism, consistently enhancing our capabilities to deliver unmatched, premium-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.