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| Grade | Gr1, Gr2, Gr5, Gr7, Gr9, etc. |
|---|---|
| Thickness | Outer diameter: 50mm~3000mm Inside diameter: 30mm~2500mm Thickness: 10mm~1000mm Or as customers' requirements |
| Standard | ASTM B348/381/338, AMS 4928, ASME SB381, etc. |
| MOQ. | 1pc |
| Feature | 1.Compressive strength, high temperature resistance 2.small density, high melting point, strong corrosion resistance, 3.high strength, good plasticity. 4.Forging with heat-treatment 5.100% ultrasonic flaw detection |
| Applications |
1. Medical and all kinds of precision parts and other industries 2. Chemical processing, medical instruments, machinery and equipment, etc. |
| Shipment | By sea or by air.( DHL, UPS, FedEx. Others ways.) |
| Load port | Shanghai Guangzhou and China main ports |
| Packing box | wooden case or as customers' requirements |
| Payment | 1. T/T, L/C, Western union 2.Prepaid 30% T/T against PI, pay for balance before delivery |
| Delivery time | 3 to 25 days after confirmed |
| The specification would be changed by the customers' requirements. | |
Forged Steel Rings
SAE 4140 SAE 4340 OD 3000mm Seamless Forged Steel Rolled Ring Forging Industrial Metal Rings
SAE 4140 and SAE 4340 are high-strength alloy steels widely used in manufacturing large industrial metal rings. Seamless forged rings with an outer diameter of 3000 mm are produced through hot-rolling and forging processes, providing exceptional strength, toughness, and fatigue resistance.
SAE 4140 (Cr-Mo alloy) is suited for medium-stress components such as gears and shafts, while SAE 4340 (Ni-Cr-Mo alloy) offers superior strength and is commonly used in aerospace, energy, and heavy machinery. The seamless forging process eliminates weld defects, improves structural integrity, and enhances durability. These large-diameter rings are widely used in wind power, petrochemical equipment, and heavy-duty industrial machinery requiring high load capacity and reliability.
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Jiangyin Golden Machinery Equipment Co., Ltd.
Jiangyin Golden Machinery Equipment Co., Ltd. covers an area of 10,000 square meters and has several standardized workshops. We specialize in the production of medium and small forgings and flanges, supported by advanced equipment and mature production technologies for sawing, forging, heat treatment, and precision rough machining.
We are China SAE 4140 SAE 4340 OD 3000mm Seamless Forged Steel Rolled Ring Forging Industrial Metal Rings Suppliers and wholesale SAE 4140 SAE 4340 OD 3000mm Seamless Forged Steel Rolled Ring Forging Industrial Metal Rings Company, Exporter. We are capable of meeting the requirements of customers across multiple industries, including power, petroleum, chemical engineering, metallurgy, machinery, light industry, and shipbuilding. By actively expanding into international markets, we have established cooperative relationships with several well-known enterprises, including Rich Reiter (Sweden), Alstom (France), Konecranes (Finland), Danieli (Italy), and General Electric (USA). Our products and services have earned wide recognition and praise from customers.
certification
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ISO9004 -
ECM -
ISO9001
News
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Industry News 2026-05-29
How to Calculate Stainless Steel Weight: Formulas and Reference Data The weight of any stainless steel component equals its volume multiplied by its density. Stainless steel density varies slightly by grade, but the standard working figure used across engineering and procurement is 7.93 g/cm³ (7,93...
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Industry News 2026-05-25
What Is Forged Steel? Forged steel is steel that has been shaped by applying compressive force — hammer blows, press tonnage, or die pressure — while the metal is at an elevated temperature, typically between 1,100°C and 1,250°C (2,000°F–2,300°F) for hot forging. The mechanical working breaks up ca...
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Industry News 2026-05-22
For most industrial power transmission and linear motion applications, a 1045 medium carbon steel shaft with induction-hardened surface hardness of 55 HRC and an h6 diameter tolerance delivers the optimal balance of strength, wear resistance, and cost. A 25 mm shaft produced to this specification tr...
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Tel/Wechat: 86-13646165906
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E-mail: [email protected]
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WhatsApp: 86-13646165906
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Add: No. 37, Panlongshan Road, Jiangyin City, Jiangsu Province, China
