1. Austenitic steels

TP 304

General purpose stainless steel with good corrosion resistance for most applications. Used for: Bar rails, Boat railings, Canopy supports, Chemical processing equipment, Chemical tubing, Column covers, Duct works, Feed-water tubes, Food preparation equipment, Food processing equipment, Heat exchanger tubes, Hypodermic needles, Ladders, Mechanical & structural components, Pharmaceutical processing equipment, Piping systems, Railings (architectural), Traffic barriers, Water pipes.

TP 304H

Higher carbon content than 304L, for increased strength, particularly at elevated temperatures.

TP 304L

Chemical plant and food processing equipment, where freedom from sensitisation is required in plate thicknesses

TP 316 / 316L

Used where higher corrosion resistance is required. Boat railings, Canopy supports, Chemical tubing, Column covers, Duct works, Feed-water tubes, Food preparation equipment, Food processing equipment, Heat exchanger tubes, Hypodermic needles, Ladders, Mechanical & structural components, Pharmaceutical processing equipment, Piping systems, Railings, Street (urban) furniture, Textile tubing, Traffic barriers, Water pipes.

TP 316H

Similar oxidation resistance to TP 316. Main areas of application: Heat exchangers, furnaces, chemical and petrochemical plant.

TP 321

Heat exchanger tubing, Chemical processing tubing, Pressure tank tubing. Suitable for heat resisting applications to 800?C.

TP 321H

This is the high carbon version of TP 321 which ensures greater creep resistance. Behaves much the same as TP 321 in oxidation resistance. Main applications: Heat exchangers, furnaces, boilers in chemical and petrochemical plant.

TP 316Ti

A titanium stabilised version of 316 used where good resistance to intergranular corrosion and high temperature strength is required.

TP 317

Chemical processing tubing, Dyeing equipment, Ink manufacturing equipment, Pulp & paper manufacturing equipment

DIN 1.4828

It is high-temperature steel for service at temperatures of up to 950-1000°C in dry air.

DIN 1.4841

It is high-temperature steel with wide application in chemical & petrochemical industries, mechanical engineering. Also widely used in furnace

TP 347HFG

Mainly used for boilers in the termal power plant, reheaters and superheaters

2. Super-Austenitic Steels

TP 904L

High resistance to general corrosion in e.g. sulphuric and acetic acids, crevice corrosion, stress corrosion cracking, pitting in chloride bearing solutions.

3. Ferritic and Martensitic steels

TP 405

Used for applications where hardening upon cooling from high temperatures must be avoided. Has excellent long-time stability up to 1200°F.

TP 410

General purpose grade for use in mildly corrosive environments

TP 430

Mechanical & structural tubing, Architectural tubing, Heat exchanger tubing, Condensers, Re-heaters, Evaporators.

4. Duplex

S31803

Typically used in heat exchangers, gas scrubbers, fans, chemical tanks, flowlines, marine and refinery applications.

UNS S32750

Used in oil & gas, chemical process, power industries. At that heat-exchangers are main application

UNS S31254

With high levels of chromium, molybdenum, and nitrogen is especially suited for high-chloride environments such as brackish water, seawater and other high-chloride process streams.

UNS N08904

It is a high-alloy austenitic stainless steel with low carbon content. The grade is intended for use under severe corrosive conditions.Use in seawater, brackish water, condensers, heat exchangers, gas washing

UNS N08800 / 08810 / 08811

Corrosion-resistant alloy for petrochemical equipment, heat exchangers and furnaces

UNS N08020

It is a highly alloyed iron-base nickel-chromium-molybdenum stainless steel developed primarily for use in the sulfuric acid related processes. Besides sulfuric acid related processes, some typical corrosion resistant applications for the alloy include chemical, pharmaceutical, food, pickling and FGD systems plus many others.

UNS N08825

Resistance to numerous corrosive environments, both oxidizing and reducing. Used in heat-exchanger equipment in oil & gas production.