A691 1.25/1.14 Cr Welded Pipes | ASME Carbon Pressure Pipes

We specialize in supplying and distributing premium-grade alloy steel welded pipes, engineered to perform in demanding industrial environments. Known for their elevated chromium content and reduced carbon levels, these pipes offer an ideal combination of strength, toughness, and corrosion resistance. Fabricated with precision, they are available in a wide range of sizes, wall thicknesses, and lengths to accommodate diverse project specifications. Each pipe is produced under strict quality standards using advanced manufacturing techniques. Our supply chain spans across key international markets including India, the United Arab Emirates (UAE), the Kingdom of Saudi Arabia (KSA), Kuwait, Qatar, the Sultanate of Oman, Iran, and Iraq.

Technical Overview

Alloy steel welded pipes exhibit outstanding mechanical and metallurgical properties, particularly in high-temperature applications exceeding 500°C. These pipes are typically composed of iron, chromium, molybdenum, and other strengthening elements that enhance their resistance to oxidation, thermal fatigue, and hydrogen embrittlement. The presence of chromium contributes to exceptional corrosion resistance, while the ferritic structure allows hydrogen diffusion to occur more rapidly under electrochemical stress. Offered in dimensions ranging from 1/8” NB to 36” NB and wall thicknesses between 11 mm to 20 mm, these pipes meet ASTM and ASME specifications such as A691 and SA691. Testing protocols include eddy current testing, ultrasonic examination, and hydrostatic testing, ensuring reliability in extreme conditions.

Applications & Industry Use

Due to their robust structure and superior thermal stability, alloy steel welded pipes are widely utilized in high-performance industries such as oil & gas, petrochemicals, power generation, metal manufacturing, and offshore drilling. They are especially suited for use in pressure vessels, heat exchangers, condensers, and refineries where elevated temperature and corrosive exposure are prevalent. Other industries such as pharmaceuticals, chemical processing, and automotive manufacturing also benefit from the dimensional accuracy and long service life these pipes provide. Comprehensive quality checks, including Rockwell hardness tests, intergranular corrosion analysis, and third-party inspections, ensure every unit delivers consistent performance and meets project-specific requirements.

Alloy Steel Welded Pipes

ASTM A/SA 691 Alloy Steel Welded Pipe, Cr-Mo Welded Pipes, Welded Alloy Steel Pipe

Alloy Steel EFW Pipes

Alloy EFW Pipes, Chromium Molybdenum Steel EFW Pipes, ASTM A691 Chrome-Moly EFW Pipe

Alloy Steel High Pressure Pipes

ASTM A691 Alloy Steel High pressure pipes Supplier, Alloy Steel Boiler Pipes Exporter, ASME SA 691 High Temperature Steel Pipes

Specification :

ASTM A691 / ASME SA691

Dimensions :

ASTM, ASME and API

Outside Diameter :

6-2500mm; WT:1-200mm

Wall thickness :

0.3mm – 50 mm

Size :

1/8"NB TO 30"NB IN

Type :

Seamless / ERW / Welded / Fabricated Pipes

Form :

Round, Square, Rectangular, Oval, Hydraulic Etc

Length :

Single Random, Double Random & Required Length

End :

Plain End, Beveled End, Treaded

Schedules :

SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules

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

Packing :

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

Specials :

Sizes and Specifications other than above can be manufactured on request