Gases
KAF Industries is an international trading, sourcing and supply partner for selected industrial and specialty gases.
Through a wide supplier network and decades of sector experience, we coordinate cross-border gas supply built around customer requirements: quality specifications, continuity of supply and technical compliance. We identify the right sources, align suppliers with customer needs and manage the commercial side of supply.
Gas categories
Industrial Gases
Commercial supply of core industrial gases for manufacturing, metals, food and other industries, sourced through an international supplier network.
Specialty & High-Purity Gases
Sourcing and supplier coordination for specialty and high-purity gases where quality specifications and certification requirements are critical.
Carbon Dioxide
International sourcing and commercial supply of carbon dioxide (CO2) for industrial and food-grade applications.
Nitrous Oxide
Cross-border trade and supply coordination of nitrous oxide, including medical anesthesia gas requirements, in line with applicable standards.
How we supply
Requirement assessment
We first understand the required gas, purity, quantity, supply format, delivery schedule, and operational expectations.
Source identification
Based on the requirement, we identify suitable supply sources through our international manufacturer and supplier network.
Technical & commercial alignment
We evaluate supply capabilities, product specifications, continuity, and commercial conditions to structure the most appropriate supply model.
Supply coordination
From supplier communication and commercial arrangements to logistics and documentation, we coordinate the supply process through delivery.
Scope of our gas supply work
KAF Industries coordinates the supply of industrial, specialty, medical and food grade gases between producers and industrial users. We do not operate air separation units. We work on the commercial and logistical side: matching a requirement to a producer that can meet the purity and packaging specification, negotiating supply terms, and keeping deliveries predictable once a contract is running.
That covers the common industrial gases such as oxygen, nitrogen, argon, carbon dioxide, hydrogen and acetylene, the welding and laser mixtures built from them, and specialty products including nitrous oxide and higher purity grades used in laboratories and electronics.
Supply format matters as much as the gas itself. The same nitrogen requirement can be served by cylinder packs, a liquid tank with a vaporiser, or an on site generator, and the right answer depends on volume, purity and how the consumption varies through the year. We size that comparison before recommending a supply mode.
Purity grades and supply formats
Gas specifications are written as a purity grade and a packaging format. The table sets out the grades and formats that cover most industrial requirements.
| Specification | Typical range |
|---|---|
| Industrial grades | 2.5 (99.5%) and 3.0 (99.9%) for welding, cutting and general industrial use |
| High purity grades | 4.0 (99.99%) to 6.0 (99.9999%) for laboratory, analytical and electronics applications |
| Cylinder sizes | 10, 20, 40 and 50 litre water capacity, filled at 150, 200 or 300 bar |
| Cylinder bundles | 12 or 16 cylinder packs for higher consumption points |
| Liquid supply | Dewars from 50 to 500 litres, and bulk tanks from 3 m³ upwards with a vaporiser |
| Welding mixtures | Argon with carbon dioxide, helium or oxygen, blended to the process and base material |
| Food grade gases | Nitrogen (E941), carbon dioxide (E290) and oxygen (E948) for packaging and beverage use |
| Medical gases | Produced and documented to European Pharmacopoeia requirements under GMP conditions |
Purity grade, moisture and hydrocarbon limits should be set by the application. Specifying a higher grade than the process needs is one of the most common and most expensive errors in gas procurement.
How we structure a gas supply arrangement
Gas supply is a recurring cost rather than a one off purchase, so the structure of the agreement usually matters more than the unit price quoted on day one.
- 1
Consumption assessment
We map which gases are used where, at what volume and purity, and how consumption varies across the week and the year.
- 2
Supply mode comparison
Cylinders, bundles, liquid bulk and on site generation are compared on total delivered cost including rental, handling and losses, not on gas price alone.
- 3
Producer selection
We approach producers able to meet the specification and the delivery radius, and check their capacity to hold that commitment through demand peaks.
- 4
Terms and documentation
Pricing structure, cylinder rental, delivery frequency, minimum quantities and the certificates of analysis required are agreed in writing before supply starts.
- 5
Delivery coordination
Schedules are set against your consumption profile, with the aim of avoiding both stockouts and unnecessary demurrage on returnable containers.
- 6
Ongoing review
Consumption and cost are reviewed periodically, since a change in production volume often makes a different supply mode cheaper than the one originally chosen.
Typical applications
Industrial gases appear in nearly every manufacturing sector. These are the applications behind most of the enquiries we handle.
Welding and cutting
Argon and argon based mixtures for shielding, oxygen for flame cutting, and acetylene or propane as fuel gases.
Food and beverage
Carbon dioxide for carbonation, nitrogen for modified atmosphere packaging, and cryogenic freezing applications.
Healthcare
Medical oxygen, nitrous oxide and medical gas mixtures supplied with pharmaceutical grade documentation.
Electronics and laboratory
High purity nitrogen, argon and helium for inert atmospheres, carrier gases and analytical instrumentation.
Chemical and process industry
Nitrogen for blanketing, purging and inerting, and hydrogen for hydrogenation and reducing atmospheres.
Metallurgy and heat treatment
Protective and reducing atmospheres for furnaces, and oxygen enrichment in melting operations.
Frequently asked questions
Do you produce the gases you supply?
No. We are a trading and sourcing company. Gases are produced by the plants we work with, and our role is specification, producer selection, commercial negotiation and delivery coordination. This keeps us independent of any single producer's network.
How do we know which purity grade we need?
The application sets the grade. Welding and cutting are normally served by 2.5 or 3.0 grades, while analytical instruments, electronics processes and some laboratory work require 5.0 or above. Paying for 5.0 where 3.0 is sufficient is a recurring and avoidable cost, so we check the requirement against the process before quoting.
When does liquid bulk supply become cheaper than cylinders?
The crossover depends on consumption and on how much cylinder handling and rental you are absorbing. As a general pattern, once a site is consuming cylinders continuously rather than occasionally, a liquid tank with a vaporiser starts to reduce cost per cubic metre. We model the comparison with your actual figures rather than a rule of thumb.
Can you supply gases with certificates of analysis?
Yes. Certificates of analysis, and pharmaceutical documentation for medical gases, are agreed as part of the supply terms and issued per batch where the application requires it.
Do you handle cylinders as well as bulk supply?
Yes. Cylinders, bundles, dewars and bulk tanks are all within scope, including the cylinder rental and return arrangements that come with returnable packaging.
Can you supply export markets rather than local delivery only?
Yes. Cross border supply is arranged with the relevant dangerous goods documentation and an agreed Incoterms rule, which is a routine part of our international trade work.
Articles on this topic
- Cylinders to Bulk Conversion: When a Bulk Gas Tank Pays OffCylinders to bulk conversion cuts gas cost, handling labor and safety risk. Learn the consumption threshold, tank sizing and how to start with rental.
- Food Grade CO2 Explained: What Buyers Should Verify FirstWhat makes CO2 food grade? Purity specs, certificates of analysis and traceability separate a real food grade CO2 supplier from an industrial one.
- CO2 Shortage Planning: A Supply Guide for Beverage MakersCO2 shortages hit beverage producers hardest. Learn why they happen and build a supply plan with second sources, contracts and early seasonal planning.
- Second Gas Supplier: Reducing Single-Source RiskRelying on one industrial gas supplier exposes you to outages, price pressure and quality drift. Build a second source with this qualification roadmap.
Get a supply proposal that matches your consumption
Send your purity requirement and how much you actually use through the year. We will confirm the right supply mode first, then quote producers who can hold that specification.
Discuss your gas supply