This specification covers nominal (average) wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. Several grades of ferritic steel are included. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse affect on low-temperature impact properties.

ASTM A333 Grade 3/6 Steel Pipes, ASTM A333 Low Temperature Grade 6 Steel Tubes Specifications, Stock and Supply Range

ASTM A333 Grade 3/6 Carbon Steel Pipes

1. Size Range: 1/2” NB to 36” NB
2. Thickness: SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules
3. Applications: Oil Refineries, Petrochemicals, Power Generation (Nuclear/Thermal), Steel, Sugar, Boiler Equipments, Pressure Vessels and General Engineering Purposes

End Connections for Line Pipes: Plain, Bevel, Screwed, Threaded

Type: Seamless / ERW / Welded / Fabricated / CDW

Form: Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes

Length: Single Random, Double Random & Required Length, Custom Size – 12 Meter lengths

End: Plain End, Beveled End, Treaded

End Protection: Plastic Caps

Outside Coating: Black Painting, Anti-Corrosion Oil, Galvanised Finish, Finish as per customer Requirements

Inspection, Test Reports: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports, India Boiler Regulations (IBR) Test Certificate

Packing: Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests

Specials: Sizes and Specifications other than above can be supplies and stock of on request

Chemical Requirements of A333 Grade 3/6 Pipes

For each reduction of 0.01% carbon below 0.30%, an increase of 0.05% manganese above 1.06% would be permitted to a maximum of 1.35% manganese. When Grade 6 is ordered under this specification, supplying an alloy grade that specifically requires the addition of any element other than those listed for the ordered grade is not permitted. However, the addition of elements required for the deoxidation of the steel is permitted.

Tensile Requirements of A333 Grade 3/6 Pipe
The material shall conform to the requirements as proscribed:

Impact Requirements

For Grades 1, 3 and 6, the notched-bar impact properties of each set of three impact specimens, including specimens for the welded joint in welded pipe with wall thicknesses of 0.120 in. [3 mm] and larger, shall not be less than the values prescribed:

Mechanical Testing

Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested. For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe. Hydrostatic Test Impact Test One notched bar impact test, consisting of breaking three specimens shall be made from each heat represtented in a heat-treatment load on specimens taken from the finished pipe.

Heat Treatment Requirements

All seamless and welded pipe shall be treated to control their microstructure by the following methods: Normalizing per A 333/A 333M-05 section 4.2.1.1; section 4.2.1.2 or section 4.2.1.3 Quenched and Tempered per A 333/A 333M – 05 section 4.2.2.1 Double Normalized and Tempered per A 333/A 333M – 05 section 4.2.2.2

Applications of ASTM A333 Grade 3/6 Carbon Steel Pipes in Seamless & Welded Form

1. Refineries
2. Power Plants
3. Boilers
4. Ship Building
5. Heat Exchangers
6. Condensers
7. Paper & Pulp
8. Marine Applications
9. Nuclear Power
10. Fossil Fuel Power Plants

Are you also Looking for Carbon Steel Pipe Fittings ASTM A420 WPL6, ASTM A350 LF2?

AN Steel Steel is a reputed manufacturer of related carbon steel pipe fittings such as buittweld fittings, forged fittings, forged flanges, fasteners and gaskets.

1. Carbon Steel Pipe ELBOWS 45°, 90°, 180°
2. Carbon Steel Induction Bends
3. Carbon Steel Tees – Straight, Reducing,
4. Carbon Steel Concentric & Eccentric Reducers
5. Carbon Steel Forged Steel Fittings: ASME B16.11
6. Carbon Steel Pipe Flanges as per ANSI B16.5
7. Gaskets
8. Nut and Bolts

A333 Grade 3/6, API-5L Grade-B, X-42, X-46, X-52, X-56, X-60,X-65, X-70, X-80 PSL1 PSL2 Line Pipe

A333 Grade 3 Line Pipes – Available ex-stock
A333 Grade 3 Sour Service Line Pipes – Available ex-stock
A333 Grade 3 Low Temperature Service Seamless Pipes – Available ex-stockA333 Grade 6 Line Pipes – Available ex-stock
A333 Grade 6 Sour Service Line Pipes – Available ex-stock
A333 Grade 6 Low Temperature Service Seamless Pipes – Available ex-stock
API 5L Grade B PSL1 Line Pipes – Available ex-stock
API 5L Grade B PSL2 Line Pipes – Available ex-stock
API 5L Grade B PSL1 Sour Service Line Pipes – Available ex-stock
API 5L Grade B PSL2 Sour Service Line Pipes – Available ex-stock
API 5L Grade B PSL1 NACE MR-0175 Line Pipes – Available ex-stock
API 5L Grade B PSL2 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X42 PSL1 Line Pipes – Available ex-stock
API 5L X42 PSL2 Line Pipes – Available ex-stock
API 5L X42 PSL1 Sour Service Line Pipes – Available ex-stock
API 5L X42 PSL2 Sour Service Line Pipes – Available ex-stock
API 5L X42 PSL1 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X42 PSL2 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X46 PSL1 Line Pipes – Available ex-stock
API 5L X46 PSL2 Line Pipes – Available ex-stock
API 5L X46 PSL1 Sour Service Line Pipes – Available ex-stock
API 5L X46 PSL2 Sour Service Line Pipes – Available ex-stock
API 5L X46 PSL1 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X46 PSL2 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X52 PSL1 Line Pipes – Available ex-stock
API 5L X52 PSL2 Line Pipes – Available ex-stock
API 5L X52 PSL1 Sour Service Line Pipes – Available ex-stock
API 5L X52 PSL2 Sour Service Line Pipes – Available ex-stock
API 5L X52 PSL1 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X52 PSL2 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X56 PSL1 Line Pipes – Available ex-stock
API 5L X56 PSL2 Line Pipes – Available ex-stock
API 5L X56 PSL1 Sour Service Line Pipes – Available ex-stock
API 5L X56 PSL2 Sour Service Line Pipes – Available ex-stock
API 5L X56 PSL1 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X56 PSL2 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X60 PSL1 Line Pipes – Available ex-stock
API 5L X60 PSL2 Line Pipes – Available ex-stock
API 5L X60 PSL1 Sour Service Line Pipes – Available ex-stock
API 5L X60 PSL2 Sour Service Line Pipes – Available ex-stock
API 5L X60 PSL1 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X60 PSL2 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X65 PSL1 Line Pipes – Available ex-stock
API 5L X65 PSL2 Line Pipes – Available ex-stock
API 5L X65 PSL1 Sour Service Line Pipes – Available ex-stock
API 5L X65 PSL2 Sour Service Line Pipes – Available ex-stock
API 5L X65 PSL1 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X65 PSL2 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X70 PSL1 Line Pipes – Available ex-stock
API 5L X70 PSL2 Line Pipes – Available ex-stock
API 5L X70 PSL1 Sour Service Line Pipes – Available ex-stock
API 5L X70 PSL2 Sour Service Line Pipes – Available ex-stock
API 5L X70 PSL1 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X70 PSL2 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X80 PSL1 Line Pipes – Available ex-stock
API 5L X80 PSL2 Line Pipes – Available ex-stock
API 5L X80 PSL1 Sour Service Line Pipes – Available ex-stock
API 5L X80 PSL2 Sour Service Line Pipes – Available ex-stock
API 5L X80 PSL1 NACE MR-0175 Line Pipes – Available ex-stock
API 5L X80 PSL2 NACE MR-0175 Line Pipes – Available ex-stock


We mainly stock & supply the A333 Grade 3/6 Seamless Pipe of following make :

A333 GRADE 3/6 Carbon Steel Seamless Pipe of Sumitomo Metal – Japan 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Nippon Steel – Japan 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of JFE Steel – Japan 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Kawasaki Steel – Japan 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Vallourec & Mannesmann – France 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Vallourec & Mannesmann – Germany 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Vallourec & Mannesmann – Brazil 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Salzgitter Mannesmann – Germany 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Arcelor Mittal Steel – Romania 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Arcelor Mittal Steel – Czech Republic 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Tenaris Dalmine – Spain 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Tenaris Silcotub – Romania 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Tenaris Siderca – Argentina
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Tenaris Tamsa – Mexico 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Tenaris NKK – Japan 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Volzhski – Russia 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Nizhnedneprovsky – Ukraine 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of USS – USA 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Welspun – India 
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Jindal Saw – India
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Indian Seamless – India
A333 GRADE 3/6 Carbon Steel Seamless Pipe of Maharashtra Seamless – India

Inspection & Approval Certificates : EN10204 3.1 / DIN 50049 3.1 / ISO 10474 3.1 Mill Test Certificate, NACE MR-0175 / ISO 15156, NACE MR-01-03 / NACE MR-01-75 / ISO 15156, CE Marked, European Pressure Equipment Directive PED-97/23/EC, AD-2000-W0, ASME Boiler & Pressure Vessel Code Sec.II Part A Ed. 2008, with 3.2 certificate duly Certified & Approved by LRS (Lloyd’s Register), GL (Germanischer Lloyd), BV (Bureau Veritas), DNV (Det Norske Veritas), ABS (American Bureau of Shipping), SGS, TUV, RINA, IRS, NORSOK Approved Standard M-630, M-650 Rev.3

A333 Grade 3/6 Carbon Steel Seamless Pipe Carbon Steel Seamless Pipe Packing

A333 Grade 3/6 Carbon Steel Seamless Pipe Carbon Steel Seamless Pipe is sleeved into plastic bag individually, pieces wrapped with water-proof material, bundled with nylon rope. Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation.

A333 Grade 3/6 Carbon Steel Seamless Pipe Carbon Steel Seamless Pipe packing will be according to international standard in bundles strapped by strips then into containers to avoid any damage.

Delivery: Within 10-25days or asap if we have enough stock

Types of Packaging:

• – Bundles (hexagonal)
• – Wooden Boxes
• – Crates (steel/wooden)
• – Special crates for U-Bend tubes with each radius separated
• – Packaging for A333 Grade 3/6 Carbon Steel Seamless Pipe Carbon Steel Seamless Pipe Seamless Pipe as per customer’s requirements

Special Features:

• • – Each bundle covered with plastic for protection against extreme weather.
  • – End of A333 Grade 6 Carbon Steel Seamless Pipe Carbon Steel Seamless Pipe protected by plastic caps.
  • – Bundles strapped with plastic strips.
  • – Each radius of U-Bend tube separated by a separator.
  • – Packaging list (laminated) placed with box/crate.
• A333 Grade 3/6 Carbon Steel Seamless Pipe Carbon Steel Seamless Pipe Sizes Available in Stock with Price
  • • 1/2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 3/4″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 1″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 1-1/4″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 1-1/2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 2-1/2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 3″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 3-1/2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 4″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 5″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 6″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 8″ NB in ThicknessSchedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 10″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 12″ NB in ThicknessSchedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 14″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 16″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 18″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 20″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 22″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 24″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6
    • 26″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in A333 Grade 3, A333 Grade 6