How long have we been in business?
FOURINOX was originally established as Fourcorp in 1974. During
the purchase of the company in 2004, the name was changed to
reflect our specialty. INOX is a Latin derivation of the work
Inoxible, which means stainless. Our specialty is in stainless and
high alloy fabrications and the name was changed to reflect that
What materials do we manufacture
Typical fabrications are designed with 300 series stainless
steels. However, since we fabricate vessels for rigid corrosion
control, we have tremendous experience with high alloys including;
Hastelloy, Inconel, Monel, AL6XN, Alloy 2205 and Titanium etc.
What are our capabilities?
The questions listed below, have been given to us in the context
of qualifying as a supplier to many of our customers. We have found
that most of these questions are answered by the knowledge that we
have a Quality System certified to ASME, CE and API standards and
have procedures in place that support our answers below.
1. Does Engineering prepare working
drawings from specifications and sketches?
Yes - Drawings are prepared using AutoCAD - Calculations are
prepared using Code ware - Compress with Finite Element Analysis
for nozzle load.
2. Can you design pressure vessels
including fractionating towers if given performance data?
We provide mechanical design according to process specifications
determined by outside Process Engineers. These Process Engineers
are responsible for establishing performance requirements.
3. What is your Quality Policy?
We have more than 20 standing policies that make up our Quality
System. An uncontrolled copy of our Quality Manual is available
4. Is your Quality Control Department
independent of production and does it have clear access to
5. What materials have you fabricated
Various grade of high nickel alloys (Hastelloy® etc.), 300
series Stainless, and other alloys including the 6% molys
(AL-6XN,254 SMO, 926 Mo, 25-6Mo & 1925 hMo), Alloy 2205,
Inconel, Monel and Titanium. We also weld carbon steel when
required by customer specifications. References can be provided
6. Describe procedures of assurance of
proper shell roundness, location of nozzles, couplings, and
Each Critical Function Dimension is confirmed, signed and dated
by at least two technicians and monitored by Q.C. personnel.
7. Describe your system for quality
evaluation and approval of potential suppliers?
References are required for all new suppliers. All incoming
material is checked for adherence to P.O. specifications and mill
8. Do you require that your suppliers
have a good quality program? Explain?
YES - On-site inspection of subcontractors is a standard
practice. Material suppliers must conform to Purchase Order
specifications. Our incoming inspection verifies this quality.
9. Describe your receiving inspection
system that checks incoming material shipments?
Material is checked against the specifications listed in our
P.O. Items inspected and verified include: material type,
dimensions, chemical requirements and physical requirements.
10. Describe your system for quality
control of acceptable and nonconforming materials?
Material that meets all the specifications of our P.O. is
accepted. Material that does not meet the specifications is marked
with a hold tag noting the discrepancy and placed in a segregated
area pending return to the supplier.
MANUFACTURING EQUIPMENT AND DATA
11. Cutting Equipment
|Automatic Flame Cutting
|Plate Edge Planer
||8" wide 4' hi
||8' X ?" thick
|Plasma Arc MANUAL
12. Plate Rolls
|Maximum Plate Thickness
13. Press Brakes
TUBE AND PIPE BENDING
14. Describe facilities for cold
bending, particularly tubing, and limitations?
We have equipment for bending 2" through 6" diameter pipe.
15. Describe forming equipment?
Heads are obtained from qualified sub-contractors. Plate forming
is done on press brakes and plate rolls.
16. Describe the shop's weld overlay
capabilities of tubesheets, channel, shells, nozzles, etc. Note any
We utilize manual, semi-automatic, automatic and robot equipment
as required by the project and the customer specifications.
17. Number and capacity of welding
Five powered weld positioners with capacity up to 40,000
18. Number and capacity of shell
40 shell turning rolls with capacity up to 200,000 lbs.
19. Machine tools- type, number and
Horizontal boring Mills Qty.3 - Largest: G&L 10' vertical,
Vertical boring Mills Qty. 2 - Largest with a 108" swing
Lathes Qty. 4 - Largest 144" horizontal with 18" swing
Drill Presses Qty. 10 - Largest is a 6' radial
Punches Up to 4" diameter through 1" plate
Others Qty. 3 press brakes - Largest 750 ton with 20' bed
20. Heat Treating Facilities in shop
(note if subcontracted and to whom)?
Sub-contracted to Metals Engineering and Omega Heat
21. Describe local stress relieving
We have in-house vibratory stress relieving equipment.
22. Describe your operating procedures
that keep the process in control?
We utilize job routing documents (travelers) to control the
critical path through our shop. The progress is monitored by the
Shop Superintendent, Project Manager, Quality Control staff and
through technician reports.
23. Do your shop mechanics maintain
shift logs? What type of information is put in them?
All technician hours are logged by type (weld, grind etc.) and
assigned by that technician against an individual project. At shift
change, the outgoing supervisor briefs the incoming supervisor
current project status.
24. Describe the training your
We utilize an apprenticeship program and also work with the
local Technical College. Technicians can advance through 8 skill
classes by passing rigorous testing procedures.
25. Does your Quality Control
Department review process control documents?
All testing documents are reviewed by the Quality Control
Manager and become part of the final documentation package.
26. Describe the system you use to test
Mill certifications are required as per ASME Code. Positive
Material Identification (PMI) is available upon customer request.
All material is tested to be in compliance with customer
27. What checks are made to ensure
nonconforming supplies do not get into the production flow?
At any stage of fabrication, material found to be non-conforming
is segregated and a Q.C. Hold tag is placed on the material.
Material with a Hold tag cannot be released or used for
fabrication. The Hold tag can only be removed by Q.C.
NON-DESTRUCTIVE TESTING EQUIPMENT
28. Radiography (RT)?
Subcontracted to Great Lakes Testing Inc., an independent
third-party inspection /& testing firm.
29. Qualifications and experience of
All are a minimum of Level II.
30. Magnetic Particle (MT)?
Type of equipment and condition
Subcontracted to Great Lakes Testing, Inc., an independent
third-party inspection & testing firm.
31. Liquid Penetrant (PT)?
Type of equipment and condition
In-house and subcontracted to Great Lakes Testing, an independent
third-party inspection & testing firm.
32. Ultrasonics (UT)? Type of equipment
In-house thickness testing only. Remaining requirements:
Subcontracted to Great Lakes Testing, an independent third-party
inspection & testing firm.
33. Physical Testing Equipment?
Type Fowler Instrumatic® Analog Hardness tester.
FINAL PRODUCT INSPECTION
34. Do you have written instructions
and test procedures available to inspection personnel?
35. Describe the testing performed to
ensure customer specifications are met?
Required tests are determined by the customer specification.
Most commonly specified tests are: pressure, ferrite, bend &
PMI. Visual inspection is always utilized.
36. Describe the frequency and
procedure used to inspect and calibrate testing equipment?
There are written procedures for calibration of each type of
test equipment. The procedures are specific to the equipment. The
frequency is determined in the procedure but generally is performed
every 6 months.
37. Describe facility for pressure
testing (including testing mediums available and maximum
Hydro testing is done in our shop following our written Hydro
test Procedure. Mediums used are water, oil and air. Maximum
pressure for liquid is 4,000 psig.
38. Give shipping facilities