High-Strength Steel Forging Round Bars - Quenching and Annealing Available

• 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 2001, Jiangsu Weirun Forging Co., Ltd. has swiftly ascended as a trailblazer in China’s alloy steel smelting and forging arena. This illustrious company emerged from the strategic unification of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., thereby inheriting a storied legacy as one of the pioneering enterprises adept in crafting a vast spectrum of forged products. Our enduring tradition is founded upon an unwavering commitment to unmatched excellence and an unyielding passion for innovation.
At the cutting edge of alloy steel smelting, electroslag remelting, and forging, Jiangsu Weirun proudly stands as a leader in mold manufacturing. Through dynamic progression over the years, we have seamlessly integrated a comprehensive industrial chain encompassing material recycling, smelting, electroslag casting, forging, and the precision machining of molds. We proudly serve both domestic and international markets with a steadfast promise of unrivaled quality and superlative service.
Our state-of-the-art facility, sprawling over 60,000 square meters, is a testament to our industrial prowess, equipped with cutting-edge electroslag furnaces including three 1-ton, a singular 3-ton, and a powerful 10-ton unit. Our robust forging operations include two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer, complemented by mechanized electro-hydraulic hammer lines of 5 and 8 tons. Advanced mechanical processing and heat treatment equipment, along with spectrometers and a comprehensive array of testing devices, underpin our robust industrial output. With a flourishing output valued at an impressive 300 million yuan, supported by fixed assets of 153 million yuan, and a dedicated team of over 200, including 20 technical experts, we proudly rank among Danyang City's prestigious top fifty in sales and tax contributions.
Propelled by a vision for the future, Jiangsu Weirun strategically adopts a philosophy focused on talent acquisition, forging powerful collaborations with prestigious domestic universities and research institutions to spur continuous innovation. Our commitment to technological advancement is evidenced by our attainment of 5 national patents for groundbreaking inventions and 3 utility model patents, epitomizing our relentless pursuit of pioneering progress.
Boasting an impressive annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, Jiangsu Weirun caters to a diverse array of industries, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by our credo of 'pursuing excellence and building a world brand,' we steadfastly align with international markets and standards, proudly holding esteemed certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a preeminent provider of forged products, Weirun remains devoted to delivering unparalleled quality and professional expertise, ensuring a superior 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.