Alloy Steel Forgings with Fine Finish for Reliable Shaft Solutions

• 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 (%):

	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 the innovative year of 2001, Jiangsu Weirun Forging Co., Ltd. has emerged as a beacon of engineering brilliance and cooperative innovation. This distinguished entity thrives through a unique partnership between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. Standing as a market luminary within China, Weirun's unmatched expertise in alloy steel smelting complements its diverse array of meticulously crafted forged products. Since its inception, Weirun has embarked on an unwavering journey toward innovative breakthroughs, consistently upholding a steadfast commitment to superior quality. This dedication has cemented its revered status as industry vanguards, propelling it to the forefront of the market.
At the heart of our operations lies a commitment to unparalleled quality excellence. Jiangsu Weirun Forging Co., Ltd. engages in an impressive array of initiatives, encompassing the intricate processes of alloy steel smelting, electroslag remelting, forging, and mold design. Our meticulously curated industrial chain seamlessly incorporates all elements, from material recycling to precision mold machining. Our unwavering dedication to excellence reverberates across borders, serving both domestic and international markets with impeccable quality standards that echo our esteemed reputation.
Our cutting-edge manufacturing facility, sprawling across an impressive 60,000 square meters, showcases the latest technological advancements. It houses three 1-ton, along with larger 3-ton and 10-ton electroslag furnaces, alongside two 2-ton, one 1-ton, and one 0.75-ton air hammers. Moreover, our sophisticated facilities include 5-ton and 8-ton electro-hydraulic hammer production lines, advanced mechanical processing and heat treatment equipment, high-precision spectrometers, and comprehensive physical and chemical testing apparatus. With fixed assets totaling an impressive 153 million yuan and an industrial output value reaching a remarkable 300 million yuan, we employ a dedicated team of over 200 skilled professionals, including 20 top-tier technical experts. These achievements position us among the top fifty enterprises in Danyang City for our annual sales and tax contributions.
Our relentless drive for innovation and expansion has guided us to meticulously attract a wide spectrum of technical expertise while forging strategic alliances with leading domestic universities and research bodies. This visionary approach has led to substantial technological advancements, securing 5 nationally sanctioned invention patents and 3 utility model patents. This resounding success underscores our preeminent position as industry leaders, fueling our mission to transform the landscape of alloy steel forging.
With a formidable annual production capacity surpassing 30,000 tons of steel ingots and a forging capacity reaching 15,000 tons, our products serve as crucial components across myriad sectors. These sectors include wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by our principle of 'pursuing excellence and building a world brand,' we seamlessly integrate into the global market via a robust international brand strategy. Our steadfast commitment to international standards is evidenced by certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a dedicated purveyor of forged products, Weirun remains unwavering in upholding the tenets of professionalism, continually advancing our capabilities to deliver unrivaled, high-quality services to our esteemed clientele worldwide.

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.