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Process Flow and Products

The TenarisTamsa manufacturing center has an integrated cycle.

Scrap and sponge iron are used to produce high-quality steel for sub-

sequent processing, resulting in pipes of internationally competitive

qualitythat complywith themost demandingstandards.

The use of state-of-the-art steel technology, such as vacuum

degassing (VD), vibro-molding and electromagnetic steering

in the bar continuous-casting process, guarantees the production

of ultra-clean steel.

Complete automation of all processes, including heat treatment, and

non-destructive inspection guarantee outstanding process control,

quality and dimensional precision of all TenarisTamsa products.

Not treated

Treated

Upsetting Treatment

CASING TUBING

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Upsetting Treatment

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LINE PIPE MECHANICAL PIPE

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Upsetting Treatment

DRILL PIPE COUPLINGS

Couplings

Oil & Gas IndustryLuis Miguel Heredialmheredia@tamsa.com.mx(52) 229 989 1968 tel(52) 229 989 1119 fax

Engineering andConstruction ProjectsHerbert Atrianhatrian@tenaris.com(52) 55 5282 9996 tel(52) 55 5282 9966 fax

DistributorsVictor Palenciavpalencia@tamsa.com.mx(52) 55 5282 9943 tel(52) 55 5282 9966 fax

Automotive Industry

Ricardo Baez

rbaez@tenaris.com(52) 229 989 1911 tel

(52) 229 989 1600 ext. 2404 fax

Industrial Applications

Pablo Peappena@tenaris.com

(52) 229 989 1956 tel(52) 229 989 1600 ext. 1956 fax

Quality Assurance

Victor Cabreravmcabrera@tamsa.com.mx

(52) 229 9891188 tel(52) 229 989 1600 ext 1188 fax

Km 433.7 Carr. Mexico-Veracruz Via Xalapa (91697) Veracruz, Ver. Mexico

MonterreyVictor Palenciavpalencia@tamsa.com.mx(52) 55 5282 9943 tel(52) 55 5282 9966 fax

GuadalajaraRuben Villarvilla@tamsa.com.mx(52) 33 3678 9107 tel(52) 33 3678 9157 fax

MexicoPaulino Navarretepaulino@tamsa.com.mx(52) 55 5282 9946 tel(52) 55 5282 9966 fax

Ciudad del CarmenCesar Gutierrezcgutierrez@tamsa.com.mx(52) 938 382 7873 tel(52) 938 382 7873 fax

VillahermosaDavid Galiciadgalicia@tamsa.com.mx(52) 993 315 6208 tel(52) 993 315 6208 fax

Poza RicaFrancisco Moralesfmorales@tamsa.com.mx(52) 782 824 2317 tel(52) 782 824 2318 fax fax

ReynosaEdgar Garayeaga@tamsa.com.mx(52) 899 925 9175 tel(52) 899 923 5192 fax

Commercial Contacts Customer Service Centers

2006TubosdeAcerode Mxico,S.A.AllrightsreservedTenarisMarketingCommunicationsRev.00 May 06

Cold Drawn Pipe

Manufacturing Process

www.tenaristamsa.com

Passion takes us far.

Tubosde Acerode Mxico,S.A.hasproducedthiscatalogue onlyandexclusivelyforgeneralinformationalpurposes,andassumes noresponsibil itywhatsoeverforany errororomissioninthe

informationcontainedherein,norisresponsible foranylossesordamages,accordingtoarticles2108,2109,and2110ofthe FederalCivi lCode ofthe UnitedMexicanStatesorcorrespondingcodes

ofthe statesofMexico,including,butnotl imitedto,anydamages orlossofincome ofanykindthattheymay caused.Accordingly,the contentofthiscatalogue is presentedonan as-isbasis,and

shouldnot be presumedto constitute a guarantee ofanykind.

Treated

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2. ROLLING MILLS

B ar Cr op pi ng i nt o B il le ts > > R ot ar y F ur na ce > > D e- Sc al in g >> P ie rc in g M il l >> M ul ti -s ta nd M an dr el P ip e M il l >>

CONTINUOUS MULTI-STAND PIPE ROLLING MILL

Extractor >> Sizing Mill >> Isotope Measuring System >> Hot Cutting >> Cooling Bed

Rotary Furnace >> Pilger Mill >>P ress >> Shell >> Ro tary Furn ace >> Pie rcing Mill >>

PILGER MILL

Hot Cutting >> Normalizing Furnace >> Sizing Mill >> Cooling Bed >> Non Destructive Testing >> End Cropping

6. FINISHING LINES

LINE 1

S t ra igh te n in g Mach in e >> No n De stru ct ive T es t in g >> E nd C rop pin g >> FullLengthDrift Te st > > T hr ea di ng > > D im en si on al C on tr ol > > W et M ag ne ti c Pa rt ic le I ns pe ct io n >> C ou pl in g Ma ke -u p> > F ul l Le ng th D ri ft Te st > > H yd ro st at ic Te st in g >> T hr ea di ng > >

LINE 2

St rai ghteni ng Mac hine > > N on Des tr ucti ve T est ing >> End Cropp ing >> Hy dros tati cTest ing >> F ull Length Dri ft T est > > End Cropping >> Threading >> Dimensional Control >> Wet M agnetic Particle I nspection >> Coupling Make-Up >>

STRETCH REDUCING MILL

R eh ea ti ng Fu rn ac e > > S tr et ch Re du ci ng M il l > > H ot Cu tt in g > > C oo li ng B ed >> N on De st ru ct iv e Te st in g > > E nd Cr op pi ng

TenarisTamsa offers the complete range of Tenaris dimensions, from

1/2" to 28" in seamless steel pipe, along with value-added services, yards

and logistics worldwide, through more than 20 customer service centers.

*UltrasonicTesting(UT)is anoptionalinspectionprocessthatcanbe performeddependingon thedimensionsofthe pipeand thecustomers specifications.

Hot Rolling Pipe Manufacturing Process 1. STEEL SHOPSTEEL SHOPElectric Arc Furnace >> Pouring >> Ladle Furnace >> Vacuum Degassing >> Continuous Casting /Pouring Bar Cutting >>

Bars /Ingots

3. HEHEAT T

Austenizing

HEAT T

Austenizin

HEAT

A us te ni zi n

LINE 3

T hr ea di ng > > D im en si on al C on tr ol > > W et M ag ne ti c Pa rt ic le I n sp ec ti on > > C ou pl e M a ke -U p >> F ul l Le ng th D ri ft T es t > > P ho sp ha ti ng

TUBING LINE

HydrostaticTest >> Beveling>> Threading>> DimensionalControl>> CouplingMake-Up>> FullLengthDrift Test >> Weighing,MeasuringandMarkingMachine >>Varnishing

PILGER

FullLengthD

4. COUPLING PRODUCTIONCOUPLINGS

C utt in g To Smal lP ie ces >> Smal lP ie ces >> T hre ad ing >> Dime ns ion alC o nt ro l>> Ma gn et i cPa r ti c le s Insp ec t io n >> P ho sph at ing >> F ini shin g

5. PIPUPSET

Upsetting