Steel Forging Round Bars - Quenching, Tempering, and Normalizing Conditions

• 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 excellence in China's alloy steel smelting and forging sector. With roots tracing back to the illustrious merger of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., our company proudly upholds a legacy as a pioneering entity in the creation and production of diverse forged products. Our foundation is built on an enduring commitment to outstanding quality and relentless innovation, ensuring we remain at the cutting edge of the industry.
As a trailblazer in alloy steel smelting, electroslag remelting, and forging, Jiangsu Weirun also excels as a distinguished leader in mold manufacturing. With years of dynamic progress, our extensive industrial chain smoothly integrates material recycling, smelting, electroslag casting, forging, and precision mold machining. Serving both domestic and global markets, we steadfastly commit to delivering unparalleled quality and exceptional service excellence.
Our state-of-the-art facility, sprawling over 60,000 square meters, is equipped with cutting-edge electroslag furnaces, which include three 1-ton, one 3-ton, and a formidable 10-ton unit. Our forging prowess is amplified by two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer, further enhanced by mechanized electro-hydraulic hammer lines of 5 and 8 tons. Bolstered by advanced mechanical processing and heat treatment equipment, alongside spectrometers and diverse testing devices, our robust industrial output flourishes with an impressive 300 million yuan, supported by fixed assets of 153 million yuan. With a dedicated team of over 200, including 20 technical experts, we proudly stand among Danyang City's elite top fifty in sales and tax contributions.
Driving our future forward, Jiangsu Weirun has strategically pursued a philosophy of talent acquisition, forging strong partnerships with renowned domestic universities and research institutions to fuel ceaseless innovation. Our unwavering dedication to technological advancement has garnered us 5 national patents for groundbreaking inventions and 3 utility model patents, symbolizing our steadfast commitment to innovation and progress.
With a remarkable annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, Jiangsu Weirun supports a diverse array of industries, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by our ethos of 'pursuing excellence and building a world brand,' we are committed to aligning with international markets and standards, proudly holding elite certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a leading provider of forged products, Weirun remains dedicated to delivering unmatched quality and professional expertise, ensuring superior service 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.