Castings & Forgings
UK foundries and forge shops producing sand, investment, die and precision castings, aluminium and steel castings, and forgings for engineered assemblies.
Categories in this group
25 totalSand, investment, die and precision castings - plus forgings
Castings & Forgings brings together UK foundries and forge shops producing near-net-shape components in aluminium, iron, steel and specialist alloys. Use this category when you need cast or forged blanks for machining, structural components in volume, or precision investment castings for complex geometries.
- You need cast or forged near-net-shape blanks to reduce machining time
- You're moving from fabrication to casting for higher volumes or complex geometry
- You need precision investment castings in aluminium, steel or super alloys
- You need forgings for high-strength structural or rotating components
- Material grade and alloy capability for your application
- Pattern, die or tool ownership and storage
- In-house finishing, machining and inspection vs. subcontracted
- Quality systems - ISO 9001, AS9100, IATF 16949, NADCAP
How to buy castings & forgings
Castings and forgings are tooling-intensive. Most of the cost lives in pattern, die or forge tooling and qualification, so supplier change later is expensive.
- 01Choose process by part
Sand, investment, gravity, low-pressure or high-pressure die casting for cast parts; open die, closed die or cold forging for forged parts. Each has a sweet spot for volume, geometry and finish.
- 02Decide tooling ownership
Pattern, die or forging tool ownership, storage and end-of-life should be agreed before tooling cuts. Tool ownership protects the right to re-source later.
- 03Specify material and treatment
Material spec (BS EN, ASTM), heat treatment, mechanical property minimums and any NDT requirement (UT, MT, X-ray, dye pen).
- 04Plan qualification
First Article Inspection, sample mechanical tests, and any sector PPAP / Nadcap qualification before serial production.
- 05Agree machining route
Decide whether the casting / forging supplier machines, or a separate machine shop does, and where the supply chain handover sits.
Categories in this group
Browse one sub-category at a time - 25 categories across 1 section.
Services offered in Castings & Forgings
The service lines suppliers in this category typically deliver.
Standards and accreditations to look for
These are the third-party certifications buyers commonly ask suppliers in this category to hold. Industrial Connected Verification is a separate check of company identity and credentials, and approved certifications uploaded by a supplier also contribute towards their Trust Score.
Baseline quality system across UK foundries and forges.
Aerospace quality system for castings and forgings.
Automotive quality system.
Founding general technical delivery requirements.
Pressure Equipment Directive for pressure-bearing castings.
Marine and offshore classification society approvals.
Lead times in Castings & Forgings
A realistic starting point for planning. Actual lead times depend on volume, material availability, finishing, inspection requirements and current supplier load. Confirm in writing on every quote.
Tooling typically 6 to 16 weeks. Production batches typically 4 to 10 weeks depending on alloy, finishing and inspection.
How to vet a castings & forgings supplier
Run through this checklist with any candidate supplier before awarding work. If they cannot evidence an item, treat it as a risk to manage, not an assumption to ignore.
- Foundry / forge with the process, alloy range and part-size envelope you need.
- In-house heat treatment or named partner with capacity for your batches.
- NDT capability matching your inspection spec (UT, MT, dye pen, X-ray).
- Pattern shop or die shop able to maintain and modify tooling.
- Material certs (EN 10204 3.1 or 3.2 where required) supplied as standard.
- Quality system certified and audited (ISO 9001 minimum, sector standards where required).
- Two reference customers in your sector willing to take a call.
- Insurance, IP and NDA position confirmed in writing before sharing drawings or data.
- Commercial terms agreed: payment terms, currency, retention, delivery Incoterms.
Common mistakes buyers make in Castings & Forgings
The avoidable issues we see most often, with the one-line fix that prevents them.
Kinds of suppliers in this category
The supplier profiles you will typically meet when sourcing in Castings & Forgings.
Low to mid volume, large parts in iron, steel and aluminium.
Complex, near-net-shape parts to tight tolerance in alloys and super alloys.
High-volume non-ferrous castings, typically aluminium and zinc.
Open and closed-die forging for shafts, flanges and structural components.
Foundries offering full post-cast machining and assembly.
Example projects in Castings & Forgings
Representative briefs and scopes buyers post in this category.
Buyer & supplier guidance
- Part drawing or 3D model with critical dimensions and tolerances
- Material specification and grade (e.g. EN-GJS-500-7, A356-T6, EN24)
- Annual volume forecast and batch size
- Post-cast operations required (machining, finishing, heat treatment)
Tooling typically 6 to 16 weeks. Production batches typically 4 to 10 weeks depending on alloy, finishing and inspection.
- Pattern or die cost, ownership and amortisation
- Material certification and traceability requirements
- First-article inspection and PPAP / FAIR reporting
- Non-destructive testing (X-ray, dye-pen) for critical parts
- List casting processes, alloys and part-size envelope
- Quote tooling lead time and production lead time separately
- Show post-cast capability (machining, heat treatment, NDT)
- Reference sectors served and approval status
- Casting processes and alloy range
- Pattern, die or tool design and manufacture
- Post-cast machining, finishing and inspection
- NDT, material certs and traceability
Buyer FAQs for Castings & Forgings
Sand casting suits low volumes and large parts; investment casting suits complex geometry and tight tolerances; die casting suits high volumes of non-ferrous parts. Most UK foundries will advise once they see the part.
Typically the buyer pays for and owns the pattern or die even if it lives at the foundry. Confirm storage, maintenance and replacement terms upfront.
Many UK foundries offer post-cast machining and finishing, or coordinate with partners. Specify whether you want as-cast, machined or fully finished components.