ASTM A672 High-Pressure Electric-Fusion-Welded Pipe

Designed for Extreme Climates and High-Pressure Service – Adaptable to Russian Regulatory Requirements

Product Overview

ASTM A672 covers electric-fusion-welded steel pipe for moderate-temperature, high-pressure service. Manufactured from pressure-vessel quality plate using LSAW processes, this pipe is widely used in oil & gas, power generation, and industrial infrastructure applications.

For the Russian market, we focus on:

◇ Cold climate adaptability: Optional low-temperature impact testing for Arctic and Siberian regions

◇ Regulatory compliance: Support for Rostekhnadzor (Rostechnadzor) permits and EAC Declaration

◇ Standard compatibility: Cross-reference with GOST standards system

Standard & Scope

Outer Diameter: 8"–72" (219–1800mm)

Wall thickness: 0.315"–2"(8–50mm)

Recommended Supplemental Requirements

Requirement	Description
Low-temperature impact test	Per project minimum ambient temperature
Weld hardness control	For sour service environments
100% weld radiography	Enhanced weld quality assurance
HIC test (if required)	Hydrogen-induced cracking resistance

Typical Applications

Industry	Specific Application
Oil & Gas	Trunk gas/oil pipelines, gathering lines
Power Generation	Thermal, hydro, and nuclear auxiliary piping
Petrochemical	Refinery high-pressure process piping
Municipal	District heating primary networks, water mains
Mining	Slurry transport pipelines

Low-Temperature Performance (for Russian Climate)

Most regions in Russia experience cold or arctic conditions, requiring good low-temperature toughness:

Region	Recommended Minimum Impact Test Temperature
European Russia (Moscow, St. Petersburg)	-40°C
Siberia (Tyumen, Novosibirsk)	-50°C
Far North (Sakhalin, Yakutia)	-60°C

Available Certification Documents

Mill Test Certificate (alignable with EN 10204 3.1/3.2 or GOST requirements)

Rostekhnadzor (Rostechnadzor) permit (if required)

Welding procedure qualification records (PQR/WPQ)

NDT reports (RT, UT, MT, PT)

Hydrostatic test records

Heat treatment charts

Low-temperature impact test reports

Selection Guidelines (Russia Market)

Application	Recommended Grade & Class	Notes
Natural gas trunk line	B65 or B70 / Class 32	Add low-temperature impact test
Oil pipeline	B60 or B65 / Class 22 or 32	Add hardness control for sour service
Power station steam line	B70 / Class 42 or 52	Observe creep temperature limits
District heating	B60 / Class 22	Water temperature ≤ 120°C