Jiangsu Liangyi Co., Limited

Jiangsu Liangyi Co., Limited is a Chinese manufacturer specializing in open die forgings and seamless rolled rings. Established in 1997, the company operates an 80,000 m² factory with original fixed assets reported at up to 40 million USD, and holds ISO-9001:2015 certification. It describes itself as a leading Chinese producer in its forging category. The company offers an integrated supply chain from steel melting and forging through heat treatment to machining, working to clients' drawings and custom technical specifications. Its forging output ranges from 30 kg to 30,000 kg per piece, with an annual manufacturing capacity of 120,000 tons. The workshop is equipped with electro-hydraulic forging hammers (0.75 t, 1 t, 3 t, 6 t and 9 t), hydraulic forging presses of 2,000 t, 4,000 t and 6,000 t, one-metre and five-metre seamless rolling machines, and ten heat treatment furnaces. Quality control relies on non-destructive testing, chemical composition testing, mechanical property testing and metallographic testing equipment. Jiangsu Liangyi produces a wide range of forged steel products to international standards and customer drawings. Its main categories include forged bars (round, flat, square, rectangular and hollow), seamless rolled forged steel rings, forged steel shafts, and seamless hollow forgings such as sleeves and heavy-wall cylinders. It also lists valve and oil-and-gas forgings, turbine parts and crankshafts among its offerings. Materials cover carbon steel, alloy steel, stainless steel, nickel alloy, titanium and tool steel. Capability highlights include forged bars up to 2 metres in diameter, seamless rolled rings up to 6 metres in diameter and 30 tons, shafts up to 1,800 mm diameter and 15 metres length, and hollow forgings up to 3,000 mm outside diameter. The company provides EN 10204 3.1 / 3.2 material certification and 100% ultrasonic testing on shafts. Its products target demanding sectors such as oil and gas, power generation, marine, petrochemical and mining, positioning the firm as a heavy-industry forging supplier rather than a consumer-goods brand.

Jiangsu Liangyi Co., Limited was established in 1997 as a Chinese manufacturer of open die forgings and seamless rolled rings. Over more than 25 years of operation, the company built an 80,000 m² factory with original fixed assets reported at up to 40 million USD and obtained ISO-9001:2015 certification. The firm developed an integrated production chain covering steel melting, forging, heat treatment and machining, allowing it to supply forged material according to clients' drawings and custom technical manuals. Its equipment base grew to include electro-hydraulic forging hammers from 0.75 t to 9 t, hydraulic forging presses of 2,000 t, 4,000 t and 6,000 t, one-metre and five-metre seamless rolling machines, and ten heat treatment furnaces. Inspection capabilities were expanded with non-destructive testing, chemical composition testing, mechanical property testing and metallographic testing equipment. By the 2020s the company marketed a broad product range including forged bars, seamless rolled rings, forged shafts, seamless hollow forgings, valve and oil-and-gas forgings, turbine parts and crankshafts, with single-piece weights from 30 kg to 30,000 kg and an annual manufacturing capacity of 120,000 tons. It serves demanding sectors such as oil and gas, power generation, marine, petrochemical and mining, and offers EN 10204 3.1 / 3.2 material certification.

• 1997

  Jiangsu Liangyi Co., Limited established as a manufacturer of open die forgings and seamless rolled rings.

• Company obtains ISO-9001:2015 certification.

• Factory grows to 80,000 m² with original fixed assets reported at up to 40 million USD.

Heavy-industry forging manufacturer supplying custom open die forgings and seamless rolled rings to oil & gas, power generation, marine, petrochemical and mining sectors.

• Forged Bars

  Round, flat, square, rectangular and hollow bars; max forging diameter up to 2 m; max single-piece weight up to 30 tons; available in alloy steel, carbon steel, nickel alloy and stainless steel; MTC 3.1 / 3.2 certification available.

• Seamless Rolled Forged Steel Rings

  Custom seamless rolled forged steel rings and open die forged rings up to 6 m diameter and 30 tons; for oil & gas, power generation, marine, petrochemical and mining; EN10204 3.1 / 3.2 certification available.

• Forged Steel Shafts

  Custom forged steel shafts to international standards and customer drawings; max diameter 1,800 mm; max length 15 m; max weight 30 tons; 100% UT testing and MTC 3.1 / 3.2 available.

• Seamless Hollow Forgings

  Custom hollow bars, sleeves and heavy-wall cylinders up to 3,000 mm OD; in carbon steel, alloy steel, stainless steel, nickel alloy, titanium and tool steel.

1. 1Open Die Forgings & Seamless Rolled Rings - Jiangsu Liangyi Co.,Limited - China Forging Manufacturerjnmtforgedparts.com
2. 2Forged Products - Jiangsu Liangyi | Forged Bars, Rings, Shafts, Sleeves, Cylinders, Valve Bonnets & Turbine Parts Manufacturerjnmtforgedparts.com
3. 3Jiangsu Liangyi Co., Limitedwikidata.org