Forged Round Bar Forging Round Bar

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• Material: Steel
• Heat Treatment: Normalizing
• 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.
Established in the year 2001, Jiangsu Weirun Forging Co., Ltd. has emerged as a pioneering force in China's alloy steel smelting and forging industry. This esteemed company was born from the strategic merger of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., thereby inheriting a proud legacy as one of the first enterprises dedicated to the art of manufacturing a wide array of forged products. Our tradition is deeply rooted in an unwavering commitment to excellence and a relentless drive for innovation.
Standing at the forefront of alloy steel smelting, electroslag remelting, and forging, Jiangsu Weirun is also a distinguished leader in mold manufacturing. Through years of dynamic advancement, our comprehensive industrial chain seamlessly integrates material recycling, smelting, electroslag casting, forging, and the precision machining of molds. Operating across both domestic and international markets, our steadfast pledge is to provide unmatched quality and exceptional service.
Our cutting-edge facility spans an expansive 60,000 square meters and is equipped with state-of-the-art electroslag furnaces, featuring three 1-ton, a singular 3-ton, and a formidable 10-ton unit. Our forging operations are empowered by two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer, further bolstered by mechanized electro-hydraulic hammer lines of 5 and 8 tons. Our advanced mechanical processing and heat treatment equipment, combined with spectrometers and a wide array of testing devices, underpin our robust industrial output, flourishing with an impressive 300 million yuan, supported by fixed assets of 153 million yuan. Our team of over 200, including 20 technical experts, proudly positions us among Danyang City's elite top fifty in sales and tax contributions.
Propelling our trajectory into the future, Jiangsu Weirun has strategically embraced a philosophy of talent acquisition, forging strong alliances with esteemed domestic universities and research institutions to fuel continuous innovation. Our unwavering dedication to technological advancement has earned us 5 national patents for groundbreaking inventions and 3 utility model patents, symbolizing our steadfast commitment to pioneering progress.
With a remarkable annual production capacity that surpasses 30,000 tons of steel ingots and a forging capacity of 15,000 tons, Jiangsu Weirun serves a diverse array of industries, 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 are resolute in aligning with international markets and standards, proudly holding distinguished certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a leading provider of forged products, Weirun remains committed to delivering unparalleled quality and professional expertise, ensuring a superior service experience for our discerning 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.