drilmax steel tubes...®steel tubes offer very high mechanical properties such as yield strength (r...
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Drilmax® Steel Tubes for the most demanding mining exploration drilling conditions
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Drilmax® steel tubes are cold drawn, heat-treated and straightened with the highest expertise to offer the best benefits to exploration drilling equipment manufacturers
High resistance to hardest drilling conditions: maximum depth, directional drilling, hard grounds
Drilmax® steel tubes offer very high mechanical properties such as yield strength (Rp0.2) up to 950 MPa, and tensile strength (Rm) up to 1000 MPa.
100 % Drilmax® steel tubes undergo specific non-destructive testing to guarantee the best surface quality and integrity.
Best behaviour in rotation
Drilmax® steel tubes offer superior straightness levels, with special attention to tube ends and a max. deviation up to 1 mm per 6 m.
Drilmax® steel tubes provide the tightest dimensional tolerances.
NDT and checking
• Eddy current and ultrasonic testing in accordance with EN and ASTM standards
• Straightness checking
• Hoop stresses characterization
• Chemical analysis verified for 100 %, no mixed-up
• Mechanical testing
• Hardness test
• Specific testing upon request
How we keep our promises
Drilmax® steel tubes are manufactured with high class pre-material of Western European origin. Our modern production equipment, together with our qualified staff and decades of experience in tube manufacturing, is designed to fulfill the most demanding customer requirements.
• 100 % Drilmax® steel tubes are delivered together with certificatesincluding chemical composition and mechanical properties
• 100 % Drilmax® steel tubes are manufactured in plants certified ISO 9001
• 100 % Drilmax® steel tubes are manufactured in environment-friendlyplants certified ISO 14001
• The Salzgitter Group central research center SZMF offers advanceddevelopments together with our customers
Customer Benefits
Outside Diameter Tolerances Inside Diameter Tolerances
1“ < OD ≤ 1.575“ *(25.40 mm < OD ≤ 40 mm)
+0.0051“ -0(+0.13 mm -0)
ID ≤ 2.953(ID ≤ 75 mm)
+0 -0.010“(+0 -0.25 mm)
1.575“ < OD ≤ 3.150“ *(40 mm < OD ≤ 80 mm)
+0.010“ -0(+0.25 mm -0)
2.953“ < ID ≤ 5.512“(75 mm < ID ≤ 140 mm)
+0 -0.015“(+0 -0.38 mm)
3.150“ < OD ≤ 5.512“ *(80 mm < OD ≤ 140 mm)
+0.015“ -0(+0.38 mm -0)
ID > 5.512(ID > 140 mm)
+0 -0.018“(+0 -0.45 mm)
5.512“ < OD ≤ 7.008“ (140 mm < OD < 178 mm)
+0.018“ -0+0.45 mm -0
Drilling Standard Application Tubular Equipment
DCDMA Standard
British Standard
European Metric
Others upon Request
Wireline Core Drilling Drill Rods Core Barrels Casings Couplings
Reverse Circulation Drilling Drill Rods Casings Couplings
Application Drill Rods Casings
Standard Length
Tolerances on diameter
Drilmax® steel tubes are manufactured in all key dimensions used for Exploration Drilling all over the world
Usual cut length up to 10.494 feet (3,500 mm), with tolerance of -0 +1/8’’ (-0 +3mm). Random or other cut length are also available upon request.
Drilmax® steel tubes are packed and protected for shipments all over the world according to customer requirements.
Drilmax® steel tubes are typically oiled inside and outside for corrosion protection and delivered in bundles.
*Outside diameters from 24.5 mm up to 140 mm can be available with a best straightness level of 1 mm per 6 m upon request.
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Manufacturing Program
Mechanical Properties Chemical Properties (% max.)
Yield Strength
Tensile Strength
Elong ation DeliveryCondition*
C Si Mn P S Cr Mo
Rp0.2(MPa) min
Rm (MPa)min
A2“ min(%)
Drilmax® 550 550 690 18 +SR 0.200 0.500 1.600 0.025 0.025
Drilmax® 650 650 790 15 +SR 0.330 0.350 0.600 0.035 0.035 1.100 0.250
Drilmax® 700 700 800 15 +SR 0.220 0.500 1.600 0.035 0.035
Drilmax® 730 730 820 15 +SR 0.440 0.300 1.650 0.035 0.035
Drilmax® 850 850 950 15 +SR 0.420 0.450 1.700 0.035 0.035 0.200 0.020
Drilmax® 950 950 1000 12 +N +SR 0.350 0.700 2.500 0.025 0.005 1.000 0.300
Drilmax® steel tubes main steel grades and mechanical properties
Drilmax® can be delivered upon request with ultra low residual stresses (hoop stresses) – max. 120 MPa – for B, N and H dimensions.* +SR – stress relieved; +N – normalized
Supply range Upon request
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Drilmax®
OD\WT 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0
253035404550556065707580859095
100105110115120125130140145150160165170178
Manufacturing Program
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Seamless precision steel tubes with special dimensional accuracyExternal diameter: 1.5 – 400 mmWall thicknesses: 0.2 – 28.5 mm
Welded precision steel tubes with special dimensional accuracyExternal diameter: 20 – 120 mmWall thicknesses: 1.0 – 7.5 mm
Welded size-rolled precision steel tubesExternal diameter: 25 – 114.3 mmWall thicknesses: 1.75 – 8.5 mm
Other diameters on request
Production of seamless and welded precision steel tubes in accordance to international standards e. g.EN 10305-1, EN10305-2, EN10305-3, EN 10305-4, EN10216 and EN10217, ASTM A 179, A192, A 209, A 210, A 213, A 556 Japan Industrial Standard, British Standards, Other standards on inquiry.
CompanyMannesmann Precision Tubes (MPT), based in Mülheim with around 2,300 employees. Worldwide activities and international access – your partner for high quality steel tubes.
Our locations in Germany, France, The Netherlands and Mexico form the basis for high delivery performance and customer sa-tisfaction. Mannesmannröhren-Werk GmbH, based in Zeithain supplies pre-material (seamless hot rolled hollows) to the preci-sion tube mills of the Salzgitter Group.
The Group-StructureThe subsidiaries and affiliates of the Business Unit Mannes-mann specialize in different steel tube products and are each out in front in their own markets.
Synergy effects as a result of our integration with the Salzgitter Group ensure an outstanding efficiency – from the pre-material to the finished precision steel tube.
Certified Quality ManagementA comprehensive continuous quality management system ISO 9001, IATF 16949, ISO 14001 and PED (Pressure Equipment Directive) which encompasses all production stages. This certified quality management system, ensures continuously high quality standards ranging from the pre-material that we select and source, with specific consideration given to the needs of precision tube manufacture, to slitting, welding and drawing facilities all the way through to precise-length centers and galvanizing facilities.
Germany
France
Mexico
The Company
Headquarter MPT Sales Production Locations
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Mannesmann Precision Tubes GmbHWiesenstrasse 3645473 Mülheim an der Ruhr, Germanywww.mannesmann-precision-tubes.com
Industry and Energy
Mannesmann Precision Tubes GmbHWiesenstrasse 3645473 Mülheim an der Ruhr, GermanyPhone: +49 208 458-1507Fax: +49 208 458-1635E-Mail: [email protected]
Mannesmann Precision Tubes France SASAvenue Jean Juif Z.I. Marolles 51300 Vitry Le François, France Phone: +33 3 26 41 23 04Fax: +33 3 26 41 23 32E-Mail: [email protected]
Mannesmann Precison Tubes Netherlands B.V.Engelseweg 173 5705 AD Helmond, The NetherlandsPhone: +31 492 596-596 Fax: +31 492 596-505 E-Mail: [email protected]