High-Quality Gear Shaft Assembly - JIS Standard Square Shape, Normalizing Process

• 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 engineering precision and cooperative innovation. This distinguished enterprise emerged proudly from the dynamic collaboration between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. Weirun shines as a celebrated leader in China's market, demonstrating unmatched prowess in the art of alloy steel smelting and offering a rich array of masterfully crafted forged products. Our inception marked the beginning of an unyielding quest for pioneering innovations and an unwavering dedication to quality excellence, solidifying our esteemed status as industry pioneers.
Our company is a paragon of quality excellence, actively participating in a diverse array of initiatives encompassing alloy steel smelting, precision electroslag remelting, forging, and innovative mold design. We have meticulously curated a comprehensive industrial chain, seamlessly integrating every facet from material recycling to precision mold machining. Our steadfast commitment to excellence resonates across borders, delivering unparalleled quality standards to both domestic and international markets.
Spanning an impressive 60,000 square meters, our state-of-the-art manufacturing facility is equipped with the latest advancements: it boasts three 1-ton, along with larger 3-ton and 10-ton electroslag furnaces; complemented by two 2-ton, one 1-ton, and one 0.75-ton air hammers. Our sophisticated infrastructure features 5-ton and 8-ton electro-hydraulic hammer production lines, cutting-edge mechanical processing and heat treatment equipment, precise spectrometers, and a comprehensive array of physical and chemical testing apparatus. With fixed assets amounting to an outstanding 153 million yuan and an industrial output value soaring to 300 million yuan, we proudly employ a committed team of over 200 skilled professionals, including 20 leading technical experts. Our exceptional achievements have placed us among the top fifty enterprises in Danyang City for annual sales and tax contributions.
Driven by a passion for innovation and relentless expansion, we have strategically focused on attracting a diverse range of technical expertise and forging synergistic partnerships with leading domestic universities and research institutions. This forward-thinking strategy has led to substantial technological advancements, earning us 5 nationally approved invention patents and 3 utility model patents. These achievements robustly bolster our leading position and authority in the industry.
With an impressive annual production capacity exceeding 30,000 tons of steel ingots and a formidable forging capacity of 15,000 tons, our products are indispensable across a broad spectrum 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 seamlessly integrate into the global market through a robust international brand strategy. Our unwavering dedication to international standards is reflected in our certifications, including ISO9001, China CCS, France BV, and Germany TUV. As a dedicated provider of forged products, Weirun remains committed to upholding the principles of professionalism, continually enhancing our capabilities to deliver unparalleled, high-quality services to our esteemed clientele.

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.