Hydrocarbon Processing

Creating value for your Hydrocarbon Processing projects

Vallourec has a long experience of providing the full range of seamless pipes for Hydrocarbon Processing projects. We offer the widest dimensional range of seamless carbon steel and alloy steel pipes worldwide, designed to be used in the most demanding conditions – high pressure / high temperature applications, corrosive environments, cryogenic conditions and various challenging combinations.


Vallourec products are used in:
Floating units:

Topsides for FPSO (floating production storage and offloading), FLNG (floating liquefied natural gas), FSRU (floating storage and regasification units)
Central processing facilities (CPF):

Gas/Oil separation, gas compression, natural gas liquids and gas injection units
Gas processing:

liquefied natural gas (LNG), gas-to-liquids (GTL), gas sweetening (sour service), gas treatment plants and others Refineries:

hydrotreaters, sulphur recovery units, cokers, visbreakers, upgraders, fluid catalytic cracker (FCC), fired heaters and distillation columns.
Petrochemical plants:
steam crackers, olefins, fertilizers, aromatics and others
+ Plus interconnecting pipelines in refineries, petrochemical and gas processing plants

Key features

Single supplier able to offer largest dimensional range of seamless pipe (OD and wall thickness) for a full range of carbon steel and alloy steel grades

High temperature and low temperature grades
Excellent creep resistance and toughness properties
Corrosion expertise plus extensive database of NACE results
Standard fine grain steel production with low sulphur and low phosphorus content

Excellent weldability
Ability to offer large number of items and small quantities
Supply of hollows (motherpipe) for bends and fittings
Excellent in-service track record


Vallourec provides a full range of approved seamless pipes for international distributors, to serve MRO and all project requirements. We are proud to supply top quality products to answer market needs. From tailored orders to exclusive frame agreements, we are driven by today‘s demand to offer the best solutions to all our distributors, delivering the best products, on time delivery and the highest level of service.

Hollows for fittings

Hollows are tubular products, customized to be transformed into fitting products. With the excellent forgeability of our steel, Vallourec offers hollows for fittings according to your needs. Depending on the subsequent manufacturing steps, hollows can be delivered according to inside diameter tolerances, minimum wall thickness and multiple

Steel grades and dimensions


Vallourec offers a full range of seamless steel pipes, fittings and pipe hollows for refineries, petrochemical complexes and gas processing plants.

Carbon steel grades

API 5L / ISO 3183

B - X42 - X52N/X52Q - X60Q - X65Q - X70Q - X80Q - X100Q
with / without Sour Service properties (Annex H)


A/SA 106 Grades B - C

A/SA 333 Grades 1 - 6


EN 10216-2: P235GH - P265GH

EN 10216-3: P275 - P355 - P460

EN10216-4: P265NL


Z245.1 Grades 241 to 550
with/without Sour Service properties

According to NACE MR0175/ISO15156-2, NACE MR0103 and PED

Alloy steel grades


A/SA 333: Grades 3 - 8

A/SA 213: T2 - T11 - T12 - T22 - T23 - T24 - T91 - T92

A/SA 335: P1 - P2 - P11 - P12 - P22 - P5 - P23 - P9 - P91 - P92


EN10216-2: 16Mo3 - 10CrMo5-5 - 13CrMo4-5 - 10CrMo9-10 - 7CrWVMoNb9-6 - 7CrMoVTiB10-10 - X11CrM9-1+1 - X10CrMoVNb9-1 - X10CrWMoVNb9-2

According to NACE MR0175/ISO15156-2, NACE MR0103 and PED

Additional grades and requirements available upon request. Vallourec can develop and deliver tailor made solutions for line pipe and hydrocarbon processing applications in accordance with end user specifications and requirements.

Project Management

Vallourec has a team dedicated to project management to support our customers to increase effectiveness, to mitigate risk and ensure the success of the project. We coordinate and integrate every key phase of our tubular offer with partners and local content where necessary; to include for example: pipe + coating + welding + logistics + full process and documentation. From tendering to delivery, Vallourec strives to ensure the best possible execution and an optimal project schedule.

We are committed to:

Delivering the highest standards of quality and safety for your projects and applications
Providing project design support from our engineers and R&D centers
Preparing detailed specification analysis
Providing technical assistance
Offering a broad range of products and associated services
Quality planning and production to meet your schedule
Dedicating resources with our project execution teams

Innovation and R&D

With six international research centers and over 500 engineers and technicians, Vallourec is dedicated to developing innovative products and solutions for our customers. Our technological expertise is attuned to market requirements and our research teams work closely with customers to develop, industrialize and commercialize new products and solutions.

Vallourec’s expertise covers metallurgy, mechanical behavior, destructive and non-destructive testing, corrosion and steam oxidation, surface treatment, product and process simulation and heat transfer technology.

New projects & new solutions
Advanced alloy grades for fired heaters
Industrialization of low temperature grades (-195°C), for gas compression applications
e.g. on FPSO vessels

Anti-corrosion grades and solutions

Hydrocarbon Processing