Quenched Steel Shafts with Square Shape for Precision Engineering Needs

• 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. emerges as a beacon of engineering excellence and collaborative innovation. As a strategic alliance between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., Weirun has soared to prominence within China's competitive market landscape. Known for its unparalleled expertise in alloy steel smelting, Weirun offers a diverse array of meticulously crafted forged products. From the outset, the company has pursued innovative breakthroughs with fervor and upheld a steadfast commitment to superior quality, thereby solidifying its lofty reputation as pioneers within the industry.
Our company epitomizes the zenith of quality excellence, orchestrating a remarkable spectrum of initiatives, including alloy steel smelting, electroslag remelting, forging, and mold design. With meticulous precision, we have cultivated a comprehensive industrial chain that seamlessly integrates every facet from material recycling to precision mold machining. Our unwavering dedication to excellence resonates on a global scale, catering to both domestic and international markets with an uncompromising commitment to exemplary quality standards.
Encompassing a vast 60,000 square meters, our cutting-edge manufacturing facility is laden with the latest technological advancements: featuring 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 sophisticated infrastructure is equipped with 5-ton and 8-ton electro-hydraulic hammer production lines, advanced mechanical processing and heat treatment equipment, high-precision spectrometers, and a full array of physical and chemical testing apparatus. With fixed assets amounting to an impressive 153 million yuan and an industrial output value ascending to 300 million yuan, we proudly employ a committed team of over 200 skilled professionals, inclusive of 20 leading technical experts. Our outstanding achievements position us among the top fifty enterprises in Danyang City in terms of annual sales and tax contributions.
Driven by our passion for innovation and expansion, we have consistently focused on attracting a wide array of technical expertise and forging strategic alliances with leading domestic universities and research institutions. This visionary strategy has resulted in notable technological advancements, earning us 5 nationally recognized invention patents and 3 utility model patents. These accomplishments fortify our distinguished status as industry leaders.
With a formidable annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products are pivotal across a multitude 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 adherence to international standards is underscored by certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a dedicated advocate of forged products, Weirun remains committed to upholding the tenets of professionalism, continually advancing 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.