DIN Cylinder Steel with Quenching and Tempering Delivery Condition

• 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 2001, Jiangsu Weirun Forging Co., Ltd. stands as a beacon of engineering prowess and innovative collaboration. Emerging from the powerful alliance between Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd., Weirun has soared to become a vanguard in the Chinese market. With unparalleled expertise in alloy steel smelting and a dazzling array of forged products, our esteemed reputation is unmatched. Since our inception, our core mission has been an unyielding quest for innovation, paired with an unwavering dedication to quality, securing our position at the industry’s pinnacle.
Jiangsu Weirun embodies excellence, passionately participating in numerous activities across alloy steel smelting, electroslag remelting, forging, and mold design. We have carefully established a flawless industrial chain, integrating processes from material recycling to precision mold machining. Our commitment to quality knows no bounds, ensuring our products uphold the highest standards both at home and globally.
Our vast manufacturing plant, spanning 60,000 square meters, is outfitted with cutting-edge technology. Featuring three 1-ton, and larger 3-ton and 10-ton electroslag furnaces, alongside two 2-ton, one 1-ton, and one 0.75-ton air hammers, our sophisticated setup includes 5-ton and 8-ton electro-hydraulic hammer production lines, advanced mechanical processing and heat treatment apparatus, precision spectrometers, and a full suite of physical and chemical testing equipment. With fixed assets estimated at 153 million yuan and an industrial output value reaching 300 million yuan, our team of over 200 skilled professionals, including 20 top technical experts, drives us towards success. These achievements position us among the top fifty enterprises in Danyang City concerning annual sales and tax contributions.
Driven by a zeal for innovation and growth, Jiangsu Weirun has purposefully attracted a diverse range of technical expertise, forming strategic alliances with leading domestic universities and research institutions. This forward-thinking strategy has fueled substantial technological advancements, culminating in 5 nationally recognized invention patents and 3 utility model patents, solidifying our leadership in the industry.
With an impressive annual production capacity surpassing 30,000 tons of steel ingots and a forging capacity of 15,000 tons, our products play essential roles across various sectors including wind energy, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Guided by our motto of 'pursuing excellence and building a world brand,' we seamlessly integrate into the global market through a comprehensive international brand strategy. Our steadfast commitment to international standards is validated by certifications including ISO9001, China CCS, France BV, and Germany TUV. As a devoted supplier of forged products, Weirun remains dedicated to professionalism, continually enhancing our capabilities to deliver superior, high-quality services to our esteemed clientele.

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.