42CrMo4 Alloy Steel Forgings and Forged Steel Flanges
Jiangyin Fangyuan Ringlike Forging And Flange Co., Ltd. lists this product under model FY-0142 for heavy-duty forged components. The published product data identifies alloy steel 42CrMo4, a 20 kg–15,000 kg weight range, annealing or normalizing and tempering, and rough or finish machining. Final material grade, governing specification, dimensions and inspection requirements should be fixed against the approved drawing and purchase specification.
20 – 15,000 kgPublished product weight range
5,000 mmMaximum outside diameter stated
3.2 μm RaSurface finish (reference or as required)
3.1 : 1Minimum forging reduction (or as required)
Material and standard identification: The source page combines "42CrMo4," "SA355" and "SA335 P22" wording, while the chemical composition shown later corresponds to a Cr-Mo P22-type pipe-grade description. These designations are not interchangeable. For pressure-retaining forgings, the purchase order must state the exact ASME/ASTM specification and grade applicable to the forged product form; confirm the heat number, material test certificate and drawing before manufacture. Do not treat the listed P22 pipe chemistry as the chemical composition of 42CrMo4.
Technical Specifications
Product / Model
42CrMo4 Alloy Steel Forgings / FY-0142
Material stated
Alloy steel 42CrMo4
Additional grade reference on source page
SA335 P22 (appears in the detailed description; confirm whether this is a separate material option or a source-page labeling error)
Weight range
20 kg – 15,000 kg
Maximum outside diameter
5,000 mm
Heat treatment
Annealing; normalizing and tempering. Final cycle to be specified for the selected grade, section size and required properties.
Machining condition
Rough machining or finish machining
Surface finish
3.2 μm Ra or as required
Forging reduction
Minimum 3.1:1 or as required, as stated on the source page; confirm calculation basis and applicable section.
Applications listed
Pressure-vessel components, ball-valve components and tube-related applications. Suitability depends on the confirmed material specification, design code and service conditions.
Minimum order quantity
Negotiable
Supply ability
6,000 tons per month, as published in the product listing; confirm current allocation and product-specific capacity when ordering.
Packaging
Seaworthy wooden cases, iron pallets or buyer-specified packaging
Reference Chemistry Published on the Same Listing
The listing also contains the following chemistry under an "ASTM/ASME SA355 P22" description. Because it is presented alongside SA335 P22 pipe wording and 42CrMo4, it is reproduced here only as a source-attributed reference—not as an approved 42CrMo4 chemistry or a certified heat analysis.
Element
Published range / limit
Element
Published range / limit
Carbon (C)
0.05–0.15%
Silicon (Si)
≤ 0.50%
Manganese (Mn)
0.30–0.60%
Chromium (Cr)
1.90–2.60%
Molybdenum (Mo)
0.87–1.13%
Phosphorus (P)
≤ 0.025%
Sulfur (S)
≤ 0.025%
Values require confirmation against the exact ordered specification and heat analysis.
No tensile strength, yield strength, impact energy, hardness range or dimensional tolerance is assigned in this page preview. Those values must be taken from the applicable material standard, product thickness, heat-treatment condition and approved inspection plan—not inferred from a different grade.
Forging, Heat Treatment and Machining Route
The source listing describes hot-forged rings, discs and flanges, followed by heat treatment and proof or finish machining. A project-specific route can be organized around the following control points, subject to the selected material specification and approved manufacturing plan.
Stage
Engineering control point
Material receipt
Verify material grade, heat number, supplier documentation, dimensions and traceability before cutting.
Heating and forging
Control heating practice, deformation sequence, forging temperature and reduction in accordance with the approved procedure for the ordered grade.
Heat treatment
Apply the specified annealing or normalizing-and-tempering cycle; record furnace identification, temperature, holding time and batch traceability.
Machining
Carry out rough or finish machining to the approved drawing, including datum control, bore, face, outside diameter and flange geometry where applicable.
Inspection
Inspection plan may include dimensional checks, visual examination, chemical analysis, mechanical testing and specified NDT such as UT, MT or PT.
Release and packing
Review inspection records, preserve identification marks, protect machined surfaces and pack for the agreed transport route.
Published Equipment Capacity
Equipment
Capacity stated on product page
Quantity
3,600-ton hydraulic press
Maximum single forging: 18 t
1
2,000-ton hydraulic press
Maximum single forging: 9 t
2
800-ton hydraulic press
Maximum single forging: 5 t
1
6-ton electric hydraulic hammer
Maximum single forging: 5 t
1
3-ton electric hydraulic hammer
Maximum single forging: 3 t
1
Air hammers
Maximum single forging: 250–1,000 kg
7
Heat-treatment furnaces
Maximum chamber: 8,000 × 5,000 × 1,500 mm
11
CNC drilling machines
Maximum stated capacity: 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
Equipment figures are transcribed from the product listing and should be reconfirmed for current availability, usable work envelope and the specific production route.
42CrMo4 / SA355 Forging Product Images
Images below are the three product image assets linked from the original product listing. Captions identify them as listing images and do not assign an unverified material grade to the pictured components.
Original product image 1Original product image 2Original product image 3
Jiangyin Fangyuan Ringlike Forging And Flange Co., Ltd.
Jiangyin Fangyuan Ringlike Forging And Flange Co., Ltd. states that it was established in 1993 and specializes in forged rings, discs, shafts, flanges, valve forgings and pressure-vessel forgings. Its published company profile describes a 100,000 m² site, a 70,000 m² building area, approximately 600 employees and an annual production capacity of 150,000 tons. These are company-level profile figures rather than a production guarantee for this specific model.
1993Year established in company profile
100,000 m²Reported total site area
150,000 tReported annual company capacity
3,000 m²Reported testing-center laboratory area
Testing and Quality Resources
The company profile describes chemical-analysis, metallographic, spectrometric, mechanical-property and ultrasonic-testing equipment. The quality-control page also lists incoming-material, in-process, finished-product and warehouse inspection stages, with methods including spectrographic analysis, magnetic-particle examination, ultrasonic testing, fatigue testing, hardness testing and strength testing.
Certificates Listed on the ECER Supplier Profile
ABS, CCS, BV, DNV GL, KR, LR, NK, RINA, API-6A, API-17D, ISO 9001:2008, ISO 14001:2004, PED.
These are certificate names displayed in the supplier's ECER profile and company quality pages. They are company-level or product-family references and are not represented here as current, unexpired approvals for FY-0142 or for every 42CrMo4 / P22 forging. Buyers should check the certificate holder, scope, covered manufacturing site, product form, grade, issue date and validity directly against the certificate copy and issuing body.
Supplier Export Fulfillment Evidence
A public ImportGenius India supplier profile under the name "Jiangyin Fangyuan Ringlike Forging" shows 67 recorded shipments between January 2, 2007 and January 28, 2020, with three trading partners. The listed shipper address includes No. 51 Sandun East Road, Zhouzhuang Town, Jiangyin City, which is consistent with the company address published on the supplier profile. A sample entry dated August 13, 2018 describes AISI 4340 and AISI 4140 alloy-steel gear-ring forgings shipped to Vulcan Industrial Engineering Co. Ltd.; a separate sample entry records A105 valve forgings.
67Shipments shown in India supplier profile
3Trading partners shown in that profile
2007 – 2020Recorded period shown by the database
IndiaDestination market covered by this record set
Timeframe
Product category / HS reference
Destination / partner
Shipment profile
2007 – Jan 2020
Alloy-steel gear-ring and pinion forgings (AISI 4340 / AISI 4140); valve forgings (A105). One sample shipment is displayed with HS code 72089000; that code is reproduced as database metadata and is not asserted as the correct classification for all forged parts.
67 supplier-profile shipments across 3 trading partners; sample records include 414 kg, 1,510 kg, 776 kg, 4,390 kg and 1,800 kg line quantities/weights as displayed by the database.
Supplier Trade Data Disclaimer: Figures above are selective records displayed by a public shipment database, not the supplier's complete shipping history. The supplier name and address are used as matching indicators; spelling variations, related entities or other registrations may affect record attribution. The shipment profile is indexed here as a reference to reported cross-border activity and is not a formal audit, credit assessment, certification or endorsement of supplier qualifications or product quality. Procurement teams should independently reconcile any transaction with bills of lading, customs declarations, commercial invoices and the legal entity named in the purchase contract.
Product Information Sources
The following links are presented as source references associated with this product listing. They are not treated as independent certification of the material grade, manufacturing route or product performance.
1. Can the forged component be manufactured to a custom drawing?
The product listing states that minimum order quantity is negotiable and identifies custom requirements as available. The buyer should submit a controlled drawing showing material grade, standard, dimensions, tolerances, machining allowance, heat-treatment condition, inspection points and marking requirements for technical review.
2. What is the minimum order quantity for FY-0142?
The listing specifies a negotiable MOQ rather than a fixed quantity. Commercial feasibility depends on forging weight, billet or ingot availability, tooling and setup, heat-treatment batch size, machining route and inspection scope. Confirm the minimum chargeable quantity in the quotation.
3. How should buyers control material grade and traceability?
State one exact material designation and governing standard on the purchase order. Require heat-number transfer through cutting and machining, material identification on each component, and a material test certificate traceable to the supplied piece. Do not use 42CrMo4 and SA335 P22 as interchangeable designations.
4. Which dimensional tolerances and mechanical properties can be guaranteed?
Tolerances and mechanical properties must be agreed against the final drawing, ordered grade, section thickness and heat-treatment condition. Specify the required standard, tolerance class, hardness, tensile and yield properties, impact test temperature and acceptance criteria before production. The product page's general size and weight limits are not dimensional tolerances.
5. Which inspection and test documents can be requested?
The manufacturer's published quality information describes chemical analysis, metallographic examination, mechanical-property testing and ultrasonic testing equipment, as well as other inspection methods. The purchase specification should identify the required MTC format (for example EN 10204 3.1 where contractually applicable), dimensional report, heat-treatment record and NDT procedure/report. Third-party inspection should be agreed before order placement.
6. How are forged parts protected for ocean freight?
The product listing describes seaworthy wooden cases, iron pallets or buyer-specified packaging. The packing specification should additionally define rust-preventive treatment, protection of machined faces and bores, moisture barrier, desiccant where required, anti-corrosion wrapping, blocking and lashing, lifting points, package marking and container-loading photographs.
7. What is the production lead time?
Lead time is order-specific and should be confirmed after drawing approval, material-grade confirmation, raw-material sourcing, forging schedule, heat treatment, machining, inspection and packing are reviewed. The published monthly supply ability is a company-level figure and should not be interpreted as a guaranteed lead time for this model.
8. What technical support is available after delivery?
Agree the post-delivery support scope in the purchase contract, including document clarification, traceability review, non-conformance notification period, evidence requirements, corrective-action process and replacement or rework responsibility. Keep the approved drawing, inspection plan and agreed acceptance criteria as the controlling references.
Buyer Due-Diligence Checklist
Confirm the exact legal manufacturer name, manufacturing site and contracting entity.
Resolve the 42CrMo4 / SA355 / SA335 P22 designation conflict before issuing the purchase order.
Approve the drawing, material standard, grade, heat-treatment condition and dimensional tolerances.
Your message must be between 20-3,000 characters!
