Quenching and Tempering Steel Forging Shafts - Round Bar and Square Options

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• Model NO.: 38crni3MOV 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. emerges as a distinguished leader, born from the union of Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As trailblazers in China's forging industry, Weirun masterfully excels in alloy steel smelting and the extensive fabrication of forged products. Our unwavering legacy of cutting-edge innovation and an unyielding commitment to superior quality have anchored us as industry visionaries since day one.
Driven by a quest for excellence, we spearhead diverse ventures, mastering alloy steel smelting, electroslag remelting, and expert forging to precision mold crafting. Over the years, we have expertly crafted a seamless industrial chain that effortlessly encompasses material recycling, smelting, electroslag casting, forging, and the meticulous machining of molds. We proudly serve both domestic and global markets with unparalleled dedication, setting a benchmark in the industry.
Our vast manufacturing expanse covers an extraordinary 60,000 square meters, equipped with the latest technology: three 1-ton electroslag furnaces, alongside a 3-ton and a 10-ton electroslag furnace. Our capabilities are further enhanced with two 2-ton air hammers, a 1-ton air hammer, and a 0.75-ton air hammer. Our state-of-the-art resources feature fully automated 5 and 8-ton electro-hydraulic hammer production lines. Our comprehensive suite includes extensive machining and heat treatment equipment, cutting-edge spectrometers, and a range of testing devices for physical and chemical analysis. With fixed assets worth 153 million yuan, we achieve an astounding industrial output value of 300 million yuan annually. Employing over 200 highly skilled professionals, including 20 experts with deep technical expertise, we proudly stand among the top fifty enterprises in Danyang City for annual sales and tax contributions.
To accelerate our growth, we've embraced a strategy focused on attracting a diverse array of technical experts and forming strategic partnerships with leading domestic universities and research institutions. This strategic initiative has culminated in significant advancements in technology and innovation, earning us five nationally authorized invention patents and three utility model patents, further cementing our prestigious standing as industry leaders.
Commanding an impressive annual production capacity exceeding 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products are vital components across a spectrum of industries, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Committed to the ethos of 'pursuing excellence and building a world brand,' we seamlessly integrate with the global market, embodying an international brand strategy. Our adherence to international standards is validated by prestigious accreditations such as ISO9001, China CCS, France BV, and Germany TUV. As a professional supplier and service provider of top-tier forged products, Weirun remains dedicated to expertise, consistently reaching new pinnacles of professionalism. Our unwavering dedication to specialization allows us to deliver unmatched high-quality services to our esteemed customers.

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.