STE is committed to responsible growth of its businesses (power, gas and energy services) to succeed in the central challenges of delivering an energy transition to a low-carbon economy: providing access to sustainably generated energy, combating climate change, reducing its effect and making responsible use of natural resources. We are firmly developing high-performance, innovative solutions for personal customers, urban authorities and companies by applying its expertise in four key sectors: Electrical projects, procurement of Oil, Gas, Petrochemical projects, energy efficiency and digital technologies.

Fields of Activity

Oil, Gas, Petrochemical


STE has a global network with local representatives that provide sound responses to the needs of its partners on both purchase and sale side.

Market analysis and open information exchange with its partners is the characteristic of STE working style.

Logistic operations at the ports, inland transport and shipping, interim warehousing, i.e., stockholding, tailor made management of regulatory/taxation issues, financial services are some of the activities STE offers to support its trading business.

One of the most significant interests of STE is to procure and supply all types of industrial, structural and alloy plates and coils. We are capable to provide all kinds of alloy steel and also special plates. In the world of steel products, we can easily offer you products like:

For making Boiler, tanks of Sour & Sweet Gas and Heat Exchangers: A516 (GR 60N & Gr 70N), A573 Gr.70

Unfired Pressure Vessels: A387 Gr.22

Oil and Gas Storage tanks:  A283 Gr. C, A285 Gr. C

Abrasion resistant plates: CK45, CK60, NIC 400

Heat resistant Steel: 14CrMo4, X45CrNiW1513, X45CrNiSi1910, X15CrNiSi2520

Special Heat resistant Steel (700 to 1,200 degrees): 310S, 309, 321, 4841

Machine‐Building Steel (Resistant at temperatures from 60 to 500 degrees): A382, 7218

Steel plates for shipbuilding and marine industry: GLRA, LLRA, NVA, NVE

Special plates: 17Mn4, 25CrMo4, 34CrMo4, 42CrMo4

Plates with different usages: A36, AH36, ST37 .2, RST37 .2 (S235 JR), ST44 (S275 JR), ST52.3 (S355 J2 G3)

Checkered Plates with materials like: ST37.2 (S235 JR), ST44 (S275 JR), ST 52.(S355 J2J3 – S355JO)

Stainless Steel Plates and Sheets: 202, 301, 304, 304L, 316, 316L

Super Alloy Plates and Sections: Inconel 738, Hastelloy

Steel Pipes for using  in Oil, Gas and Petrochemical Industries acc. to API 5L Standards (PSL1 & PSL2) in  different grades like A,B,X42,X46,X52,X56,X60,X65,X70,X8.0

Carbon Steel, Stainless Steel and Super Alloy Pipes and also Pipes with Special Materials.

Welded, Seamless and Spiral Pipes in different sizes. (SMLS, ERW, LSAW, SSAW …)

All types of Tubes in various sizes and materials and also special Tubes for Oil, Gas, Petrochemical and  Steel Industries  like Reformer Tubes, SA192 (Tubes for boiler), SA387, …

STE in addition to providing consulting services is expanding its business scope to import and deliver different types of Steel Sections.

Carbon Alloy:

  • A333, Gr. 6, A335 P5, P11, P22, P91
  • Copper Alloy:
  • Admiralty Brass tube (C44300)
  • Al‐Brass Tube (C68700)
  • Cu‐ Ni Tube (C70600, C71000, C71500, C71640)


  • UNS S32750 is a high‐alloy super duplex stainless steel for service under extremely corrosive conditions. It is developed mainly for chloride containing environments like seawater and, therefore, it contains high amounts of chromium, molybdenum and nitrogen.
  • UNS S31803 is a medium – alloy duplex stainless steel with high corrosion resistance. This steel is the most widely used of the three. Continual development work for many years has led to increased nitrogen and molybdenum contents, thus father improving the weld ability and corrosion resistance.
  • UNS S32304 is a low‐alloy duplex stainless steel. It contains no molybdenum and has lower nickel content then the other two. It is the developed as a high strength and low‐cost alternative to the standard austenitic grades 304L and 316L.
  • Ni‐Mo Alloy
  • Hastelloy Gr. B
  • Ni‐Cr Alloy
  • Inconel 600
  • Inconel 625
  • Ni‐cu Alloy
  • Inconel 800
  • Inconel 825

Due to the best relationship with the fitting manufacturers, we can supply all types of fittings with the Most appropriate delivery condition (including price and time) according to the below items:

  • Carbon   Steel:  ASTM A105, A694, F42, 46, 52, 56, 60, 65, 70, A 350    LF3, A 350 LF2
  • Stainless Steel:  ASTM  182 F304, 304L, 304H, 316, 316L, 317, 317L, 310, 321, 347, 904L
  • Alloy Steel: ASTM A 182 F1, F5, F9, F11, F22, and F91
  • Nickel and Nickel Alloys:  ASTM B 366
  • Copper   And   Copper   Alloys: ASTM B 61, ASTM B 62 and ASTM B 271
  • Titanium: ASTM B 363

Having knowledge of industrial projects and the usage of valves in these projects, and also owning  an expert team  in this field, STE is able to provide these products from the best and reputed manufacturers in the world.  Moreover, one of our activities is supplying different types of high pressure valves for gas projects, STE can provide all sorts of valves supporting all special pressure types and materials.

We can supply different types of valves as the following:

Gate valve, Butterfly Valve, Ball Valve, Check Valve, Globe Valve, Needle Valve, High Pressure Valve, Diaphragm  Valve, Plug Valve, Piston Valve, Pinch Valve, Special Purpose Valve (like multi‐port valve, Line Blind Valve, etc.)

We can supply these equipment such as Sensor, Meter & Display, Controller, Transmitter, Valve, Control Valve,  Calibrator, Recorder or Logger, Transducer, Actuator, Detector,…  from the best manufacturers like Siemens, ABB, Honeywell, Schneider Electric, GE, Endress+Hauser, Krohne, Parker, Sandvik, winter, etc. for measuring the values like Pressure, Temperature, Level, Flow, Humidity.


Tubes and Pipes

Steel Sections

Super Alloys



Measurement Equipment and Instrument

We only do what we know we can accomplish. Our experts tried to battle in field of electrical projects since 20 years ago. We worked on many different projects such as medical, food and beverage, machineries, car, steel, cement, mine, oil, gas and petrochemical industries.

Besides, our group of expertise can also give you consultancy for all different electrical projects.

Since Saman Tavan Energy is mainly a trading company, using well-known brands from all around the world is not an issue for us.


STE envisions today the city of tomorrow

The world has never evolved so rapidly.

In 2050, 7 out of 10 people will live in cities. The energy transition, that is to say the new means of energy production and consumption, is increasing in power everywhere on the planet. This change is part of a broader societal transformation that goes far beyond energy issues.

Smart Home

Contact Us



Tel:            +98 21 46291612


Fax:           +98 21 46291713


Address:     Unit A1 _ Negin Aseman TW. ,
                    Marzdaran BLV. Tehran, Iran 1461874816.

Oil, Gas, Petrochemical




Tel:            +98 21 46291612


Fax:           +98 21 46291713


Address:     Unit A1 _ Negin Aseman TW. ,
                    Marzdaran BLV. Tehran, Iran 1461874816.