Steel Forging Round Bars with Exceptional Strength - ASTM/AISI/DIN Standards

• 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. stands as a beacon of innovation and excellence in China's alloy steel smelting and forging industry. Born from the dynamic merger of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., the company proudly carries forward a legacy of mastery in the manufacturing of an extensive range of forged products. Our ethos is founded on an unwavering commitment to superior quality and a relentless passion for groundbreaking innovations.
At the pinnacle of alloy steel smelting, electroslag remelting, and forging, Jiangsu Weirun is a recognized leader in mold manufacturing. Through relentless progress, we have cultivated a comprehensive industrial ecosystem that integrates material recycling, smelting, electroslag casting, forging, and precision mold machining. Our operations span both domestic and international markets, driven by an unwavering promise to deliver unparalleled quality and exceptional customer service.
Our state-of-the-art facility, sprawling over 60,000 square meters, is equipped with cutting-edge electroslag furnaces, including three 1-ton units, a single 3-ton unit, and an impressive 10-ton unit. Our forging prowess is supported by two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer, complemented by advanced electro-hydraulic hammer lines of 5 and 8 tons. This robust infrastructure, enriched with sophisticated mechanical processing and heat treatment equipment, spectrometers, and a wide range of testing devices, underpins our industrial strength, thriving with a robust output of 300 million yuan, and steadfast fixed assets worth 153 million yuan. Our dedicated team of over 200, including 20 technical experts, ensures our esteemed position among the elite top fifty enterprises in Danyang City for both sales and tax contributions.
Jiangsu Weirun's vision for the future is empowered by our strategic focus on talent cultivation, forming robust alliances with leading domestic universities and research institutions to drive continuous innovation. Our unwavering dedication to technological progress has garnered us 5 national patents for pioneering inventions and 3 utility model patents, embodying our steadfast commitment to leading-edge advancements.
Boasting an exceptional annual production capacity of over 30,000 tons of steel ingots and a forging capacity of 15,000 tons, Jiangsu Weirun serves a broad spectrum of industries including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Adhering to the principle of 'pursuing excellence and building a world brand,' we are resolute in aligning with international standards and markets, proudly holding esteemed certifications like ISO9001, China CCS, France BV, and Germany TUV. As a premier provider of forged products, Jiangsu Weirun remains dedicated to delivering unparalleled quality and professional expertise, ensuring an exceptional service experience for our discerning 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.