Alloy Steel & Carbon Steel Hot-Rolled Ring Forgings
Custom forged rings and step rings engineered for gear and heavy-machinery applications. Delivery options include rough-machined or finish-machined condition, with quenching and tempering (Q+T) specified to order. Listed steel grades include 4140, 34CrNiMo6, 4340, C35, C50 and C45, with 42CrMo4 identified as the attribute-table material entry. The selected grade and governing standard should be fixed in the approved drawing and purchase specification before manufacture.
- 5,000 mmMaximum outside diameter listed
- 50–15,000 kgListed product weight range
- 1 pieceListed minimum order quantity
Product Specifications
| Parameter |
Published product information |
| Product type | Hot-rolled forged ring; step-ring and non-standard-size configurations are described |
| Listed grades | 4140, 34CrNiMo6, 4340, C35, C50 and C45 |
| Attribute-table material | 42CrMo4 alloy steel |
| Model / brand | FY-0001 / FY |
| Application | Gears |
| Maximum outside diameter | 5,000 mm |
| Weight range | 50–15,000 kg |
| Heat treatment | Quenching and tempering (Q+T), or as required by the order |
| Machining | Rough machining or finish machining |
| Minimum order quantity | 1 piece, subject to confirmation for the selected configuration |
| Supply capability | 6,000 tonnes per month, as stated in the product listing; not an order-specific delivery commitment |
| Packaging | Seaworthy wooden cases, iron pallets or customer-specified packing |
| Price | By negotiation |
Material-grade confirmation: The product title lists six grade options, while the attribute table names 42CrMo4. Confirm one exact grade, its governing standard, heat-number traceability, chemical limits and material-certificate requirements in the purchase order. Do not treat the listed grades as interchangeable without an approved equivalency review.
Source: Manufacturer product attributes and ECER indexed product details.
Forging, Heat Treatment and Machining Capability
The product documentation describes a manufacturing route covering forging, heat treatment, machining and inspection. The final route and acceptance criteria should be agreed against the approved drawing, selected material grade and applicable product standard.
| Equipment |
Documented capacity or range |
Quantity |
| 3,600-ton hydraulic press | Maximum single forging: 18 tonnes | 1 |
| 2,000-ton hydraulic press | Maximum single forging: 9 tonnes | 2 |
| 800-ton hydraulic press | Maximum single forging: 5 tonnes | 1 |
| 6-ton electric-hydraulic hammer | Maximum single forging: 5 tonnes | 1 |
| 3-ton electric-hydraulic hammer | Maximum single forging: 3 tonnes | 1 |
| Air hammers | Maximum single forging: 250–1,000 kg | 7 |
| Forging manipulators | Documented forging range: 5–20 tonnes | 7 |
| Heat-treatment furnaces | Maximum stated dimensions: 8,000 × 5,000 × 1,500 mm | 11 |
| CNC drilling machines | Maximum stated diameter: 5,000 mm | 2 |
| Vertical lathes | Stated range: 1,600–5,000 mm | 60 |
| Horizontal lathes | Maximum stated capacity: 5,000 mm | 70 |
| Band-sawing machines | Stated range: 260–1,300 mm | 36 |
Process Sequence
- Review approved drawing, material grade and delivery condition.
- Prepare and forge the workpiece to the agreed geometry.
- Apply the specified heat-treatment route, including Q+T where ordered.
- Complete rough or finish machining and dimensional checks.
- Compile agreed inspection records and material documentation.
Inspection Planning
Define chemical analysis, mechanical-property testing, hardness, dimensional inspection and any UT, MT or PT requirements in the inspection and test plan. Set sampling, acceptance criteria, traceability and third-party hold points before production.
Manufacturing Video and Supporting References
YouTube Source
View the supplied YouTube video source
The video is listed as a reference source only. Technical claims should be checked against the product specification and inspection records.
Additional Visual Reference
The Pinterest link is included as a supplementary visual reference. It is not treated as independent evidence of material grade, dimensions, manufacturing origin or inspection results.
View the supplied Pinterest reference
Cross-reference: product photos and process information are attributed to the manufacturer listing and ECER product record.
Manufacturer Profile: Jiangyin Fangyuan Ringlike Forging And Flange Co., Ltd.
Jiangyin Fangyuan Ringlike Forging And Flange Co., Ltd. is a China-based manufacturer whose company profile states that it was established in 1993. Its listed product categories include forged rings, discs, shafts, flanges, valve forgings and pressure-vessel forgings. The profile describes a 100,000 m² site, 70,000 m² of building area and an in-house testing laboratory.
Company Profile Data
- Established: 1993
- Business type: Manufacturer
- Employees: ECER profile lists more than 506; company introduction states 600 staff, including 138 engineers and technical personnel.
Described Testing Capabilities
Chemical analysis, metallographic examination, spectrometer testing, mechanical-property testing and ultrasonic testing are listed in the company introduction.
Certificates and Approval Records
The manufacturer and ECER records list the following certificates and approvals. Each record has its own issuing body, issue date, product or process scope and limitations. These records should not be interpreted as blanket approval of every grade, size, facility or individual ring forging.
| Record |
Reference / Date |
Scope summary in available record |
| ABS | T1370792 * 2015-05-18 | Steel and stainless-steel forging components for marine applications. |
| CCS | JN15Q00029 * 2015-09-14 | Steel forgings, including ring-type and gear forgings, under cited CCS rules. |
| BV | SMS.W.II.80242-B.0 * 2014-09-01 | Recognition under BV Mode II scheme for carbon, carbon-manganese and alloy-steel forgings. |
| DNV | AMM-5758 * 2012-08-15 | Steel forgings in carbon and carbon-manganese, alloy and austenitic stainless steels, subject to stated weight limits. |
| KR | SH25201-SF001 * 2015-08-18 | Manufacturing-process approval for specified carbon and low-alloy steel grades and process limits. |
| LR | MD00/3946/0002/3 * 2015-01-06 | Specified carbon, carbon-manganese and alloy-steel forgings, including rolled-ring size and weight limits. |
| API 6A / API 17D | 6A-1200 / 17D-0078 * 2014-04-12 | Listed scope relates to specified flanged connectors, tees and crosses; not a general approval of all ring forgings. |
| ISO 9001:2008 | 05314Q20011R3M * 2014-03-11 | Quality-management system for steel-forging production; stated scope covers forgings under 20 tonnes. |
| ISO 14001:2004 | 01713E20686R1M * 2013-12-18 | Environmental-management scope for steel forgings of 18 tonnes and below at the stated Jiangyin facility. |
| PED | 01 202 CHN/Q-05 0191 * 2014-12-08 | Quality-assurance system for a material manufacturer; forged-steel flanges and components, subject to certificate annex. |
Certificate references and scope above are transcribed from the ECER product record. Obtain the current certificate, annexes and issuer confirmation before relying on any approval for a specific order. The cited issue dates are historical records and do not establish current validity.
Source: ECER certificate register on the product page.
Reported Export Activity and Market Footprint
ECER-indexed trade information associated with Jiangyin Fangyuan Ringlike Forging And Flange Co., Ltd. reports cross-border activity in forged and carbon-steel industrial components. These records describe enterprise-level trade activity and are not proof that this specific FY-0001 ring configuration was shipped in each transaction.
- 433Reported international shipment transactions in the ECER-indexed profile
- 5 marketsIndia, Brazil, Vietnam, Ukraine and Colombia
- 2021–2026Period covered by the summarized trade activity
| Period |
Consolidated categories & HS codes |
Markets |
Reported shipment profile |
| 2026 Q3 | Rolling-mill steel components, including alloy-steel slide plates; HS 84559000 | Vietnam / Southeast Asia | One reported shipment profile for large-format replacement components used in steel-processing equipment. |
| 2026 Q1 | Gear blanks, forged transmission components and perforated discs; HS 84839000 | India / South Asia | Multiple industrial-component lots reported in a February batch. |
| 2025 Q2–Q3 | Forgings, carbon-steel products and rolling-mill components; HS 7207191900, 84559000 and 73269099 | India and Brazil | Recurring industrial-material and machinery-component activity. |
| 2021–2024 | Forged parts and steel-based industrial components; HS 00330000 and related classifications | India, Brazil, Vietnam, Ukraine and Colombia | Multi-year activity across several industrial-component categories. |
Procurement Due-Diligence Checklist
- ✓Match the contracting entity, manufacturing entity, payment beneficiary and export-declaration party.
- ✓Confirm the ordered grade, drawing revision, dimensions, machining condition, heat treatment and HS classification.
- ✓Request current material test certificates, heat-treatment records, dimensional inspection reports and required third-party inspection results.
- ✓Verify destination-country shipping experience using relevant commercial invoices, packing lists or appropriately redacted transport documents.
- ✓Agree traceability, inspection hold points, packaging, delivery terms and shipment schedule in writing.
Frequently Asked Questions
Can the manufacturer accept a small trial order or a customized MOQ?
The product listing states a minimum order quantity of one piece. Confirm feasibility for the selected grade, dimensions, process route and machining scope, and agree in writing on any setup, testing, packaging or freight implications for a trial quantity.
How should buyers resolve the different steel grades shown in the product information?
The title lists 4140, 34CrNiMo6, 4340, C35, C50 and C45, while the attribute table identifies 42CrMo4. Specify one required grade and governing standard in the purchase order. Confirm grade equivalency, heat-number traceability, chemical limits and material-certificate requirements before production.
How are dimensional tolerances and material quality controlled?
State the controlling drawing revision, dimensions, tolerances, machining allowance, surface condition and inspection method in the technical agreement. Define acceptance using the selected grade standard and agreed test requirements. Obtain the inspection plan and acceptance criteria before manufacture.
What inspection and test reports can buyers request?
Agree the required documentation before order confirmation. Depending on the specification, request a material test certificate, chemical analysis, mechanical-property results, heat-treatment records, dimensional inspection report and traceability records. If third-party inspection is required, specify the agency, scope, sampling and hold points.
How should marine packaging and transport protection be specified?
The listing identifies seaworthy wooden cases and iron pallets, or customer-specified packing. Define corrosion protection, moisture barriers, desiccants where appropriate, impact protection, lifting and lashing points, shipping marks, preservation period and container-loading requirements for the route and storage conditions.
What production lead time can be expected?
Lead time depends on grade availability, forging size, heat-treatment schedule, machining, inspection scope and shipping plan. Obtain a written schedule with production milestones, inspection release date and shipment window for the specific order. The stated monthly supply capability is not an order-specific delivery commitment.
What technical and after-sales arrangements should be agreed?
Record responsible technical and quality contacts, approved drawing revisions, change-control process, nonconformance notification procedure, corrective-action expectations and warranty terms in the contract. Link purchase specifications, inspection records and shipping documents to the order and heat or batch identification.
How should buyers confirm certificate relevance to an order?
Check certificate number, issuer, current validity, facility, product or process scope, grade, size limits and annexes. The listed records have specific scope and historical issue dates; confirm that the applicable certificate and approval requirements cover the ordered product and delivery conditions.
Purchase-Order Readiness Checklist
- ✓Approved drawing, revision, material grade and governing standards identified.
- ✓Dimensions, tolerances, machining allowance, heat treatment and acceptance criteria documented.
- ✓Inspection plan, test reports, traceability and third-party hold points agreed.
- ✓Packaging, preservation, shipping marks, delivery terms and shipment schedule confirmed.
- ✓Supplier, manufacturer, contracting entity and payment beneficiary reconciled.
- ✓Certificate scope, validity and order-specific applicability checked.
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