Versatile Steel Square Bar for Hot Forging and Die Casting 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. stands as a proud beacon of industrial prowess. Partnering with Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., it is among China's pioneers in alloy steel smelting and diverse forged product manufacturing.
Our company thrives in the production and operation of key projects, including alloy steel smelting, electroslag remelting, forging, and mold manufacturing. Through relentless development, we've established a comprehensive industrial chain, facilitating material recycling, smelting, electroslag casting, forging, and precision mold machining on a global scale.
The company's expansive operations flourish within a 60,000 square meter facility, equipped with cutting-edge technology: three 1-ton electroslag furnaces, one 3-ton, and one magnificent 10-ton furnace. Our robust array includes dual 2-ton air hammers, a 1-ton, and a nimble 0.75-ton hammer, complemented by fully mechanized 5-ton and 8-ton electro-hydraulic hammer production lines. We boast advanced machinery for mechanical processing, heat treatment, and a suite of spectrometers and testing devices. With fixed assets of 153 million yuan and an industrial output value of 300 million yuan, our team of over 200 skilled professionals, including 20-plus technical experts, propel us to the forefront of Danyang City's top fifty enterprises by sales and tax revenue.
Driven by an unyielding spirit of innovation, our company is rapidly advancing. We've strategically recruited a wealth of technical talents, fostering collaboration with prestigious domestic universities and research institutions. Our dedication to innovation is evidenced by securing five national authorized invention patents and three utility model patents, illustrating our commitment to cutting-edge technology introduction and development.
Boasting an impressive annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products find indispensable applications across industries like 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 continuously align with international markets, adhering to a robust international brand strategy by producing to exacting global standards. Our quality-centric operations are certified by ISO9001, China CCS, France BV, and Germany TUV. As an esteemed supplier and service provider in the forging sector, Weirun is unwavering in its commitment to professional excellence, providing unparalleled quality services through a specialized and expert-driven approach.

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.