Reliable Steel Forging Round Bars - JIS/BS Compliant with Various Shapes

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• Application: Machinery Parts
• 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 2001, Jiangsu Weirun Forging Co., Ltd. has set the benchmark for excellence in China's alloy steel smelting and forging arena. Born from the strategic union of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., the company proudly upholds a rich heritage as a trailblazer in the forging industry. Our legacy is firmly anchored in a passion for excellence and an unyielding pursuit of innovation, granting us a legacy of producing an extensive range of high-quality forged products.
At the helm of alloy steel smelting, electroslag remelting, and forging, Jiangsu Weirun is acclaimed as a vanguard in mold manufacturing. Our progressive journey has crafted an integrated industrial chain that masterfully encompasses material recycling, smelting, electroslag casting, forging, and precision mold machining. With a significant presence in both domestic and international arenas, we are steadfast in our promise to deliver outstanding quality and unparalleled service.
Positioned on an expansive 60,000-square-meter site, our avant-garde facility boasts cutting-edge electroslag furnaces, including three 1-ton, a singular 3-ton, and a robust 10-ton unit. Our forging prowess is augmented by two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer, further empowered by electro-hydraulic hammer lines of 5 and 8 tons. State-of-the-art mechanical processing and heat treatment equipment, paired with spectrometers and a comprehensive suite of testing devices, reinforce our formidable industrial output. Flourishing with a remarkable 300 million yuan in output and fixed assets of 153 million yuan, our dedicated team of over 200, including 20 technical mavens, proudly ranks among the top fifty in Danyang City for sales and tax contributions.
Propelling forward into the future, Jiangsu Weirun has adeptly embraced a strategy of talent cultivation, forging robust partnerships with esteemed universities and research institutions to drive continuous innovation. This steadfast dedication to technological progression has garnered 5 national patents for groundbreaking inventions and 3 utility model patents, epitomizing our unwavering commitment to advancing innovation.
With an outstanding annual production capacity exceeding 30,000 tons of steel ingots and 15,000 tons of forged products, Jiangsu Weirun caters to a broad spectrum of industries such as 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 are dedicated to aligning with global markets and standards, boasting esteemed certifications like ISO9001, China CCS, France BV, and Germany TUV. As a preeminent provider of forged products, Weirun is committed to delivering unmatched quality and professional expertise, ensuring an exceptional service experience for our esteemed 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.