Accreditation, Approvals and Qualified Welding Procedures  

                                                                      

Accreditation

ISO 9001:2008 LRQA 0965205

ASME U Stamp

In accordance with AFCEN RCC-M:2007

(Design & Construction rules for mechanical components of PWR Nuclear Islands)

Approvals

ABB Lummus Global

Air Liquide

Alstom

Azmeco

Azot

BP Chemicals

Dow Benelux

Essar

Exxon Mobil

Foster Wheeler Energy

Furnace Engineering Inc.

Haldor Topsoe

Hellenic

Heurtey Petrochem

Howe Baker Engineers

Hyundai

Indian Oil Corporation

Larsen & Toubro

Qunishan Nuclear

Repsol

Sabic

Shell UK

Taneco

Total

Weir Pumps

Qualified Welding Procedures
Carbon & Carbon Manganese Steels

General Pipe-Work and Pressure Vessel Steels
High Yield Grades
Low Temperature C-Mn Grades

Low Alloy Steels

Chromium-Molybdenum Creep resisting Steels
1 ¼ Cr to 9 Cr Range including 9 Cr Modified

Austenitic Stainless Steels
(Wrought and Cast) 
Standard AISI 300 Series Steels including Low
Carbon (L) and High Carbon (H) Grades
Duplex & Super Duplex Stainless Steels
22% Standard Duplex – UNS S31803
22% Super Duplex – UNS S32760
High Nickel Alloys
Nickel Copper Alloys
Nickel Chromium Alloys
Nickel Iron Alloys
Nickel Molybdenum Alloys
Centrifugally & Static Cast
Heat Resistant Austenitic & High Alloy Steel
Heat Resistant Alloys
including Proprietary Cast Alloys
Copper Based Alloys
Cupro-Nickel and Aluminium Bronze
Reactive Metals
Titanium
Transition Joints
A wide range of possible dissimilar metal
Combinations of Ferritic, Austenitic and High
Nickel Alloys
Weld Overlay

Austenitic Steel Alloys
Nickel Base Alloys

Welding Processes
 
GTAW
SAW
SMAW
FCAW
GMAW

Gas Tungsten Arc Welding (Automatic Tube to Tube, as well as Manual)

Submerged Arc Welding

Shielded Metal Arc Welding

Flux Cored Arc Welding

Gas Metal Arc Welding

Processes other than SAW and GTAW automatic are used in all positions, but to reduce heat inputs and improve the mechanical properties, the down hand 1G / PA (rotated) position is used.

Hi-Tech Fabrication Ltd, Bretby Business Park, Ashby Road, Burton on Trent, Staffordshire, DE15 0YZ
Tel: +44 (0) 1283 817900 Fax: +44 (0) 1283 218965 Email: info@hitechfab.co.uk