Forging Steel Gear - Round Bar, BS Standards, Quenching + Tempering Process

• 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 (%): At Jiangsu Weirun Forging Co., Ltd., each element is meticulously curated to construct an extraordinary chemical composition. This precision guarantees our products consistently deliver outstanding performance and dependable reliability across a diverse array of applications.

	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. emerges as a dynamic synergy between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. In the thriving Chinese market, we are pioneers committed to the sophisticated art of alloy steel smelting and producing an extensive range of forged products. From the onset, our dedication to innovation and exceptional quality has been unwavering.
Driven by a relentless pursuit of excellence, our company engages in a variety of projects, from alloy steel smelting to the intricate craft of precision mold manufacturing. We have forged a seamless industrial chain that integrates material recycling, electroslag casting, and precision machining, serving global markets with unwavering dedication and unmatched expertise.
Our expansive manufacturing plant spans over 60,000 square meters, equipped with cutting-edge technology including three 1-ton electroslag furnaces, along with 3-ton and 10-ton models. It is further enhanced by a fleet of air hammers and automated electro-hydraulic hammer production lines. Supported by advanced spectrometers and meticulous testing apparatus, our fixed assets are valued at 153 million yuan, generating an impressive industrial output of 300 million yuan annually. Boasting over 200 adept professionals, including 20 technical experts, we proudly stand among the elite enterprises in Danyang City for both sales and tax contributions.
To catapult our growth to new heights, we have embraced a strategic approach of attracting technical talent and forging alliances with esteemed universities and research institutions. This initiative has propelled technological advancements, earning us 5 national patents and 3 utility model patents, solidifying our leadership in the industry.
With a formidable annual production capacity exceeding 30,000 tons of steel ingots and 15,000 tons of forgings, our products are indispensable to sectors such as wind power, chemical engineering, and automotive industries, among others. Guided by our philosophy of 'pursuing excellence and building a world brand,' we align flawlessly with global market standards, as evidenced by accreditations like ISO9001 and Germany TUV. As a professional supplier, Jiangsu Weirun Forging Co., Ltd. is committed to delivering unmatched high-quality services, continually striving for new pinnacles of expertise and specialization.

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.