Steel Square Bar for Hot Forging Metal Processing Machinery Parts

• 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.
Established in 2001, Jiangsu Weirun Forging Co., Ltd. is a pioneering force in China, boasting a rich heritage in alloy steel smelting and the manufacturing of a diverse array of forged products. The company proudly consists of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd.
Specializing in comprehensive projects like alloy steel smelting, electroslag remelting, forging, and mold production, the company has, over years of dedicated growth, cultivated a full-fledged industrial ecosystem. This spans material recycling, meticulous smelting processes, precision electroslag casting, forging excellence, and the artistry of precision mold machining, serving both domestic and international markets.
Spanning a sprawling 60,000 square meters, the company's state-of-the-art factory houses innovative machinery and technology, including an impressive array of electroslag furnaces and air hammers. Equipped with modern mechanical processing units, heat treatment facilities, and advanced testing devices, the company stands as a testament to industrial innovation. With fixed assets worth 153 million yuan and an annual industrial output of 300 million yuan, the company is a major employer, with over 200 dedicated staff, including a cadre of more than 20 technical experts. It is proudly ranked among the top fifty enterprises in Danyang City by annual sales and tax contributions.
In a pursuit of relentless progress, Jiangsu Weirun has, in recent years, strategically recruited top technical talents. The company has fostered synergies with leading domestic universities and research institutions, driving innovation and technological advancements. These efforts have borne fruit in the form of 5 nationally authorized invention patents and 3 utility model patents, underscoring a commitment to pioneering excellence.
Boasting an impressive annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products are foundational across myriad industries including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by the vision of "pursuing excellence and building a world brand," Jiangsu Weirun actively integrates with the global marketplace, adhering to an international brand strategy. Our commitment to quality is affirmed by certifications like ISO9001, China CCS, France BV, and Germany TUV. As a leading supplier and service provider of forged products, Weirun is dedicated to exceptional professionalism and unwavering dedication to expertise, ensuring the delivery of premium services to our valued 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.