Forging Steel Gear - Round Bar, Quenching + Tempering, ASTM Standards

• 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., we meticulously handpick every element to craft an extraordinary chemical composition. This precision ensures our products consistently deliver superior performance and dependability across a multitude of applications, catering to the exacting demands of industry professionals.

	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 vibrant synergy between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As pioneers in China's dynamic market landscape, we are devoted to the sophisticated craft of alloy steel smelting and the fabrication of an expansive range of forged products. Since our establishment, we have unwaveringly adhered to the principles of pioneering innovation and exceptional quality.
Driven by a relentless quest for distinction, our company engages in a spectrum of diverse projects, ranging from the intricate art of alloy steel smelting to the meticulous science of precision mold manufacturing. We have forged an exemplary industrial chain, meticulously integrating material recycling, electroslag casting, and precision machining. Our dedication to the global market is steadfast, underscored by unmatched expertise and service.
Our expansive manufacturing facility spans 60,000 square meters, teeming with cutting-edge equipment: a triumvirate of 1-ton electroslag furnaces, alongside robust 3-ton and 10-ton counterparts, augmented by a sophisticated array of air hammers and automated electro-hydraulic hammer production lines. Supported by state-of-the-art spectrometers and testing devices, our fixed assets boast a valuation of 153 million yuan, while our industrial output reaches a remarkable 300 million yuan annually. With a dedicated team of over 200 skilled professionals, including 20 technical experts, we proudly stand among Danyang City's premier enterprises for sales and tax contributions.
To propel our growth trajectory skyward, we have embraced a strategic focus on attracting technical talent and forging strategic alliances with renowned universities and research institutions. This visionary initiative has fueled technological advancements, securing us 5 national patents and 3 utility model patents, firmly establishing our leadership in the industry.
With an impressive annual production capacity exceeding 30,000 tons of steel ingots and 15,000 tons of forgings, our products are indispensable to key 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 flawlessly align with global market benchmarks, corroborated by prestigious accreditations such as ISO9001 and Germany TUV. As a dedicated professional supplier, Jiangsu Weirun Forging Co., Ltd. remains resolute in delivering exceptional high-quality services, continually striving for new heights 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.