Industry

Oil & Gas manufacturing

Source machined, forged and welded components for oil and gas equipment from manufacturers in Türkiye — in the corrosion-resistant alloys and with the documentation the industry requires.

Typical volumes
Small to medium batches
Key certification
API Q1
Sour service
NACE MR0175 / ISO 15156
Certificates
EN 10204 3.1 / 3.2

Overview

Oil and gas equipment operates under high pressure, corrosive media and critical safety requirements. Typical parts include valve bodies and trims, flanges, fittings, machined forgings, wellhead and pipeline components and welded skids. Buyers usually require API-related quality systems, full material traceability and sour-service compliance where hydrogen sulphide is present.

Türkiye has a strong base of forging, machining, valve and fabrication suppliers that export to energy markets in Europe, the Middle East and Central Asia.

On Metraxio you describe the part, attach drawings and state material, pressure class, quantity and certifications. The platform structures the requirement and shows which facilities are a technical fit.

Documentation is part of the product in this sector. Material certificates, hardness records for sour service and pressure-test reports are often required with every shipment, so stating them up front avoids qualifying a facility that cannot provide them.

Typical parts & components

  • Valve bodies, bonnets, balls and stems
  • Flanges, fittings and forged blocks
  • Wellhead and Christmas-tree components
  • Pipeline and compressor station parts
  • Pump and compressor components
  • Welded skids, frames and pressure piping
  • Machined seals and wear parts

The processes, materials and requirements below are an editorial reference of what is typical for oil & gas programs — not a statement about facilities in the Metraxio network.

Common manufacturing processes

Typical materials & grades

Certifications & compliance

What buyers in this industry commonly ask suppliers for. Exact requirements depend on the program, customer and part.

Supplier certifications

  • API Spec Q1 Common

    API quality specification for manufacturers.

  • ISO 9001 Typically required

    Baseline quality system.

  • ASME U Certificate Sometimes requested

    For pressure vessels built to ASME VIII.

  • ISO 14001 Sometimes requested

    Requested by some operators.

Standards & regulations

  • NACE MR0175 / ISO 15156 Common

    Materials for sour (H₂S) service.

  • EN 10204 Type 3.1 Typically required

    Material certificate for metallic raw material.

  • ASME B31.3 Common

    Process piping code.

  • ASME BPVC Section IX Common

    Welding procedure and welder qualification.

Quality & documentation

  • Material certificates to EN 10204 3.1 or 3.2.
  • Sour-service compliance to NACE MR0175 / ISO 15156 where required.
  • Welding to ASME IX qualified procedures.
  • NDT, pressure testing and positive material identification (PMI).
  • Full traceability from heat number to finished part.
  • Inspection and test plans agreed with the buyer.

Typical tolerances & surfaces

  • Sealing surfaces and valve seats: tight tolerances and fine finishes, often Ra 0.4–0.8 µm.
  • Flanges and fittings: dimensions to the applicable ASME or EN standard.
  • Machined forgings: typically ±0.02–0.05 mm on functional features.
  • Hardness limits for sour service must be verified and documented.

Sourcing from Türkiye

Türkiye combines a deep contract-manufacturing base with short routes into Europe. Industrial goods move between Türkiye and the EU under the customs union, so buyers typically avoid EU import duties on qualifying parts.

  • Many European destinations can be reached by road within several days; actual transit depends on origin, destination, customs handling and cargo.
  • Common delivery terms are EXW, FCA and DAP; Metraxio keeps the agreed Incoterm attached to the quotation and order.
  • Plan time for third-party inspection, witnessed testing and document review before shipment.

How Metraxio qualifies suppliers

Every request is checked against each facility's structured profile before any supplier is invited.

  • Hard criteria: the required process (e.g. CNC machining or forging), the specified alloy and grade, and certifications such as API Q1.
  • Missing data is not a rejection. If a facility profile does not yet state something, the result is "Needs More Information" rather than "Not Qualified".
  • No match yet? You can continue with Managed Sourcing and the Metraxio team runs supplier discovery for you.
  • Facility identities stay anonymous during the technical assessment.

Example project

How a typical request moves through Metraxio

60 duplex valve balls — 2205 — NACE MR0175 — delivered FCA.

  • The buyer uploads drawings for valve balls and stems with sour-service requirements.
  • Metraxio structures the requirement: CNC machining, grinding, stainless steel 2205, NACE MR0175, EN 10204 3.1 and FCA delivery.
  • The fit assessment shows which facilities are qualified, which need more information and which do not match.
  • The buyer invites qualified facilities to a Supplier RFQ, or hands the job to Managed Sourcing.
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Frequently asked questions

What does sour service mean for my parts?

Parts exposed to hydrogen sulphide must meet NACE MR0175 / ISO 15156 limits on material and hardness. State it in your requirement so it is assessed.

Is API Q1 required?

Many operators and OEMs require API Q1 or API monogram licences for specific products. For sub-components ISO 9001 with project requirements may be accepted.

Can suppliers machine nickel alloys and super duplex?

Some can. Material and grade are part of your requirement, so facilities are assessed on whether they process the alloy you specify.

Is third-party inspection possible?

Yes. Witness points and inspection agencies are usually agreed in the inspection and test plan.

Are supplier names visible during the assessment?

No. Facilities are shown anonymously during the technical assessment. Identities are shared as the engagement progresses.

Related industries

Start a Manufacturing Project

Describe your oil & gas part, attach drawings and see which facilities are a technical fit before you request quotes.