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ASTM A333/ASME SA333 Seamless Welded Steel Pipe

ASTM A333/ASME SA333 Seamless Welded Steel Pipe
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ASTM A333/ASME SA333: Seamless and Welded Steel Pipe for Low-Temperature Service Standard: ASTM A333/ASME SA333
We can supply different kinds of low-temperature carbon steel pipes, such as Grade 1, Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10 and Grade 11.

Introduction ASTM A333/ASME SA333 seamless and welded steel pipe is produced by adopting seamless or no additional filler metal welding technology. This standard applies to low temperature seamless and welded carbon steel and alloy steel pipes with nominal (average) wall thickness. This type of low-temperature carbon steel pipe can be used in fertilizer equipment and other low temperature equipment.

Competitive Advantages
  • Heat Treatment
  • The thermal treatment of ASTM A333/ASME SA333 welded steel pipe is quite complex. There are different heat treatment methods for different grades. JST configures micro oxidation and non-oxidation heat treatment furnace for this low-temperature carbon steel pipe. It provides the desired temperature in different heat treatment modes, making the pipe surface smooth with no oxidation, thereby improving the life of welded steel pipe.
  • Mechanical Test
  • JST chooses one or two low-temperature carbon steel pipes and does flattening test, flaring test and hardness test respectively. According to the standard requirements, we do not do flaring test and flattening test on one welded steel pipe simultaneously. JST can also do hydrostatic test or non-destructive electrical measuring test according to customer's requirements. When the amount of seamless pipes is less than 50, we will select one pipe to do tensile test, while for more than 50 low-temperature carbon steel pipes, we choose two pipes to do tensile test.
  • Technological Advantage
  • Our company has professional inspectors for welded steel pipes. They have appropriate qualification certificates and can use the appropriate professional equipment to complete the above test. JST will conduct a monthly professional training to make them master more advanced testing methods and make the detection of low-temperature carbon steel pipe more accurate and its performance more stable.
Specifications of ASTM A333/ASME SA333 Seamless Welded Steel Pipe

1. Chemical Composition Parameters

2. Mechanical Properties of Low-Temperature Carbon Steel Pipe

Standard Grade Tensile Strength (MPa) Yield Point (MPa) Elongation (%)
Y X
ASTM A333 Grade 1 ≥ 380 ≥ 205 ≥ 35 ≥ 25
Grade 3 ≥ 450 ≥ 240 ≥ 30 ≥ 20
Grade 4 ≥ 415 ≥ 240 ≥ 30 ≥ 16.5
Grade 6 ≥ 415 ≥ 240 ≥ 30 ≥ 16.5
Grade 7 ≥ 450 ≥ 240 ≥ 30 ≥ 22
Grade 8 ≥ 690 ≥ 515 ≥ 22  
Grade 9 ≥ 435 ≥ 315 ≥ 28  
Grade 10 ≥ 550 ≥ 450 ≥ 22  
Grade 11 ≥ 450 ≥ 240 ≥ 18  

3. Impact Temperature of Seamless and Welded Steel Pipe Strike Temperature Condition

Grade The Lowest Temperature for Strike Test
℉ ℃
Grade 1 -50 -45
Grade 3 -150 -100
Grade 4 -150 -100
Grade 6 -50 -45
Grade 7 -100 -75
Grade 8 -320 -195
Grade 9 -100 -75
Grade 10 -75 -60

Jiangyin Changjiang Steel Tube Making Factory is a leading supplier and exporter of low-temperature carbon steel pipes in China. We mainly manufacture structure pipe, fluid pipe, high pressure boiler pipe, API pipe, marine pipe, alloy pipe, tubing, casing, line pipe, etc. Our company sets up a steel tube technology R & D center with advanced pipe testing equipment. Through strict testing process, we are able to produce high quality welded steel pipes for customers. Our low-temperature carbon steel pipes have been exported to the Middle East, CIS, Southeast Asia, Africa, South America, North America, Europe, Australia and many other countries and regions.

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