Our recognized world class product, service and reputation GD™-SUPA® Slicklines.
Manufactured in North America: USA, Canada, and UK in Europe.

  • Solid, Continuous 100% Weld-Free, Bright Finish.

  • CWI’s GD™ & SUPA® alloys are designed to perform in harsh and corrosive conditions, and with varying degrees of mechanical stress conditions.

  • Suited for Measuring-Line/Wireline, Oil & Gas, Geothermal Well Environments, and Electro-Mechanical (EM cable) cable.

  • Readily suitable for demanding atmospheric conditions (architectural railings), and severe chemical processes (screens and filters)
  • ISO 9001:2008 registered company with 10 manufacturing locations in USA , Canada and Europe.

  • Global Slickline inventory available.

  • Each Slickline is supplied with a certificate of conformance, stating physical and mechanical properties including alloy chemistry, and breaking load.

  • Every line can be verified by an independent lab to EN10204 standards.
Well Location & Condition

Oil wells located around the world vary in conditions and harsh well environments.

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Use our CWI Well Service Material Guidance Form for suggestions on alloys suitable for your specific application.

Which Alloy is for your Well?
CWI GD™-SUPA® Alloys

Our alloys are designed to perform in harsh conditions in oil, gas and geothermal well environments.

Select CWI Alloy Grades including GD™-SUPA®
Well Success Slicklines

We meet and exceed our customers expectations around the globe.

Each CWI Slickline is supplied with a certificate of conformance stating physical and mechanical properties, including alloy chemistry and breaking load. Every line can be verified by an independent lab to EN10204 standards.

 

Available in a variety of finishes & packaging

GD™/SUPA® Alloys   Slickline Summary (pdf)

GD316™ (UNS S31600)

GD316™

CWI GD316 is austenitic stainless steel line suitable for well conditions wit medium concentration of CO2 (up to 30%) and low Chlorides (up to 2.5%) with no H2S present.


Nominal Composition %Ni %Cr %Mo %Si %N %MN %P %S %C PRE
  10.5-14.5 16-18 2.0-3.0 <1.0 0.04-0.06 <2.0 <0.045 <0.010 <0.06 24-29
Sizes 0.066" 0.072" 0.092" 0.108" 0.125" 0.140" 0.150" 0.160"
Minimum Break Load 736 lbs 875 lbs 1430 lbs 1960 lbs 2640 lbs 3325 lbs 3800 lbs 4220 lbs
GD22™ / SUPA40® ( UNS S31803 / S32205)

GD22™ /
SUPA40®

CWI GD22™ / SUPA 40® is a duplex stainless steel suitable for well conditions with medium concentrations of CO2 up to 35% with no H2S present and up to 30% Chlorides where H2S partial pressure is 3% max

Nominal Composition %Ni %Cr %Mo %Si %N %Mn %P %S %C PRE
  4.5-6.5 21-23 2.5-3.5 <1.0 0.14-0.20 <2.0 <0.03 <0.020 <0.03 31.5-37.7
Sizes 0.072" 0.092" 0.108" 0.125" 0.140" 0.150" 0.160"
Minimum Break Load 950 lbs 1600 lbs 2200 lbs 3000 lbs 3650 lbs 4100 lbs 4400 lbs
GD31Mo™ / SUPA75® (UNS N08926)

GD31Mo™ /
SUPA75®

CWI GD31Mo™ / SUPA75® is a “super austenitic" stainless steel with increased molybdenum and nitrogen suitable aggressive environment oil well conditions with high concentrations of CO2, H2S and Chlorides. GD31Mo offers superior corrosion resistance and mechanical properties to those of GD316.

Nominal Composition %Ni %Cr %Mo %Cu %C %N %Mn %P %S PRE
  24-25 20-21 6.0-6.5 0.8-1.0 <0.02 0.15-0.25 <2.00 <0.03 <0.005 42-47
Sizes 0.072" 0.092" 0.108" 0.125" 0.140" 0.150" 0.160"
Minimum Break Load 970 lbs 1620 lbs 2170 lbs 2850 lbs 3400 lbs 4020 lbs 4400 lbs
GD35Mo™ (UNS N08028)

GD35Mo™

CWI GD35Mo™ is a “super austenitic” stainless steel with very good general corrosion resistance and pitting resistance in aggressive environments containing high concentrations of CO2, H2S and Chlorides. GD35Mo offers superior corrosion resistance and mechanical properties to those of GD316 and GD22.

Nominal Composition %Ni %Cr %Mo %Cu %C %N %Mn %P %S %Si PRE
  30.0-32.0 26.0-28.0 3.0-4.0 1.0-1.4 <0.015 0.04-0.07 <2.0 <0.02 <0.01 <0.7 37-42
Sizes 0.072" 0.092" 0.108" 0.125" 0.140" 0.150" 0.160"
Minimum Break Load 890 lbs 1450 lbs 1970 lbs 2600 lbs NA NA NA
GD39Mo™ / SUPA80® (UNS N08031)

GD39Mo™ /
SUPA80®

CWI GD39Mo™ / SUPA80® is the latest offering in our series of “super austenitic” stainless steel wirelines with a PREN >50 it possesses very good general corrosion and pitting resistance in aggressive environments containing high concentrations of CO2, H2S and Cl, with breaking loads greater than GD31Mo / SUPA 75.

Nominal Composition %Ni %Cr %Mo %Cu %N %Mn %P %S %C PRE
  30-32 26-28 6-7 1.0-1.4 0.15-0.25 <2.0 <0.02 <0.01 <0.015 48-55
Sizes 0.072" 0.092" 0.108" 0.125" 0.140" 0.150" 0.160"
Nominal Break Load NA 1680 lbs 2244 lbs 3100 lbs NA NA NA
GD50™ (UNS R30035)

GDGD50™

GD5O™ (MP35N®) is a nickel-cobalt-chromium-molybdenum alloy that exhibits high tensile strength with good ductility and toughness with excellent corrosion resistance, making GD5O™ especially suitable for extremely sour well conditions.
 

Nominal Composition %Ni %Cr %Mo %Co %Ti %Mn %P %S %Si %C %B %Fe PRE
  33-37 19-21 9-15 BAL <0.010 <0.15 <0.015 <0.01 <0.15 <0.02 <0.010 <1.0 <50
Sizes 0.072" 0.092" 0.108" 0.125" 0.140" 0.150" 0.160"
Minimum Break Load NA 1680 lbs 2244 lbs 3200 lbs 3500 lbs NA 4875 lbs

 

Slickline / Wireline Sales:
CALL :

US +1-800-325-5861
CA +1-519-833-9632
UK +44-(0)-1709-37-6625

 

An ISO 9001:2008 registered company with 10 manufacturing locations in USA, Canada and Europe, and stocks held worldwide. We are commited to ensuring our customers receive a reliable and durable product that meets and exceeds their expectations around the globe.
You can read more about our quality certifications at CWI Certifications page.
CWI Slickline Business Affiliate:

SLK-Connect's mission is to provide technical support for the planning and execution of Slickline, Wireline and Wellservice operations worldwide.

Visit www.slk-connect.com

To maximize the life of your CWI GD™-SUPA® SLICKLINE follow these guidelines:

  • Confirm the wire is suitable for the expected well conditions.
  • Use a Vernier Calliper to check the wire OD.
  • Use new packing in the stuffing box and change the wire guides if they show signs of excessive wear.
  • Use correct sized sheaves (rule of thumb - sheave diameter = 120 x wire OD.)
  • Always lubricate the wire when running into the well.
  • Never exceed the maximum allowed wire tension, this will be set at a maximum of 60% of the MBL.
  • Clean the wire pulling out of the well, use a wireline wiper to remove well fluids.
  • Always update the wire logbook with the wire cut off and data from the operation.