Product Introduction
These seamless steel tubes are used for operation & maintenance, equipment fabrication and plant construction in petrochemical industry. They are engineered to meet requirements of high pressure, high temperature and corrosion resistance.

Standards
GB 5310 Seamless steel tubes for high-pressure boilers
GB 9948 Seamless steel tubes for petroleum cracking
ASME SA-106M Seamless carbon steel nominal pipes for high-temperature service
ASME SA-335M Seamless ferritic alloy steel nominal pipes for high-temperature service
ASME SA-333M Seamless and welded nominal steel pipes for low-temperature service
API SPEC 5L Line pipe specification
EN 10216-2 Seamless steel tubes for pressure purposes — Technical delivery conditions Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties

Main Steel Grades
GB5310: 20G, 12Cr1MoVG, 15CrMoG etc.
GB 9948:10, 20, 15CrMo, 12CrMo, 1Cr5Mo etc.
ASME SA-106M: SA-106B/A106 etc.
ASME SA-335M: P11, P12, P22, P5, P9, P91 etc.
ASME SA-333M: A333-1, A333-3, A333-6 etc.
ASME SA-213: T11, T22, T5, T9
API 5L: B, X42, X52 etc.
EN10216-2: P195GH, P235GH, P265GH, 16Mo3, 10CrMo5-5, 13CrMo4-5 etc.

Specifications
Nominal OD: Φ18mm ~ Φ610mm, WT: 2.0mm ~ 40.0mm