Steel Forging Shafts - ASTM Standard Quenching and Tempering Round Bar

• 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 transformative year of 2001, Jiangsu Weirun Forging Co., Ltd. proudly embraces a rich heritage originating from the esteemed Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a vanguard in China's industrial landscape, we have set an unparalleled standard in alloy steel smelting and the meticulous production of a vast array of forged products.
Demonstrating unwavering dedication, our company stands at the forefront of the intricate production and adept management of alloy steel smelting, electroslag remelting, forging, and mold crafting. Over time, we have meticulously constructed a comprehensive industrial chain, perfectly harmonizing material recycling, smelting, electroslag casting, forging, and the precision crafting of molds. Serving both domestic and international markets, our distinction is evident.
Our strategic foothold encompasses a vast 60,000 square meter facility, where we house an impressive collection of assets, including three cutting-edge 1-ton electroslag furnaces, along with superior 3-ton and 10-ton counterparts. Our mechanical adeptness is further accentuated by two 2-ton air hammers, a 1-ton air hammer, and a precise 0.75-ton air hammer, complemented by fully mechanized electro-hydraulic hammer production lines of 5 tons and 8 tons each. Our expansive setup features extensive mechanical processing, advanced heat treatment equipment, state-of-the-art spectrometers, and sophisticated physical and chemical performance testing devices. We stand on a solid financial foundation with fixed assets valued at 153 million yuan, achieving an impressive industrial output value of 300 million yuan. Our over 200-strong workforce includes more than 20 highly skilled technical professionals, anchoring our position among Danyang City's top fifty enterprises with notable annual sales and tax revenue.
In our relentless quest for excellence, we have strategically integrated a diverse array of technical talents and fostered dynamic collaborations with prominent domestic universities and research institutions. Our steadfast dedication to technological advancement and innovation has been honored with 5 national authorized invention patents and 3 utility model patents, underscoring our leadership in the industry.
Boasting an outstanding annual production capacity that surpasses 30,000 tons of steel ingots and a formidable forging capacity of 15,000 tons, our products cater extensively to industries such as wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Driven by our guiding ethos of "pursuing excellence and building a world brand," we continue to forge ahead, seamlessly integrating with global markets. Our unwavering commitment to an international brand strategy is evident in our production meeting the highest global standards. Our unparalleled excellence is validated by prestigious certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a trusted professional supplier and service provider of forged products, Weirun exemplifies professionalism and innovation, consistently offering exceptional services through a specialized, high-caliber approach tailored to meet customer needs.

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.