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Chemical Injection Line

Product introduction

A general term for injection processes that use special chemical solutions to improve oil recovery, remove formation damage, clean blocked perforations or formation layers, reduce or inhibit corrosion, upgrade crude oil, or address crude oil flow-assurance issues. Injection can be administered continuously, in batches, in injection wells, or at times in production wells.

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Alloy Features

Corrosion Resistance

Organic acids at high concentrations and moderate temperatures.
Inorganic acids, e.g. phosphoric and sulphuric acids, at moderate concentrations and temperatures. The steel can also be used in sulphuric acid of concentrations above 90% at low temperature.
Salt solutions, e.g. sulphates, sulphides and sulphites.

Caustic Environments

Austenitic steels are susceptible to stress corrosion cracking. This may occur at temperatures above about 60°C (140°F) if the steel is subjected to tensile stresses and at the same time comes into contact with certain solutions, particularly those containing chlorides. Such service conditions should therefore be avoided. Conditions when plants are shut down must also be considered, as the condensates which are then formed can develop conditions that lead to both stress corrosion cracking and pitting.
SS316L has a low carbon content and therefore better resistance to intergranular corrosion than steels of type SS316.

Technical Datasheet

Alloy

O.D.

W.T.

Yield Strength

Tensile Strength

Elongation

Hardness

Working Pressure

Burst Pressure

Collapse Pressure

inch

inch

Mpa

Mpa

%

HV

psi

psi

psi

 

 

min.

min.

min.

max.

min.

min.

min.

SS316L

0.375

0.035

172

483

35

190

3,818

17,161

5,082

SS316L

0.375

0.049

172

483

35

190

5,483

24,628

6,787

SS316L

0.375

0.065

172

483

35

190

7,517

33,764

8,580

SS316L

0.375

0.083

172

483

35

190

9,749

43,777

10,357


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