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AISI 4130 pipe

AISI 4130 pipe

AISI 4130 is a low alloy steel containing molybdenum and chromium as strengthening agents. Alloy pipe in the power industry generally refers to A335 material but in the oil and gas market they use 4130 pipe.

aisi-4130-pipe

AISI 4130 is a low alloy steel containing molybdenum and chromium as strengthening agents.

Seamless Pipe is tubing made to the pipe schedule. Alloy pipe in the power industry generally refers to A335 material but in the oil and gas market they use 4130 pipe. This product is made to the pipe schedule but uses A519 4130 as the controlling seamless specification. The material is then heat treated to L80, P110 or the customer’s specified properties.
This material is easily welded and is generally used for above ground applications and utilizes the fittings, flanges and other piping components with the same 4130 chemistry. This product is a good alternative to replace X65 through X80 piping items where the usage or repair is too small for mill production.

Yaang Steel supply 4130 pipe:

  • A519 4130
  • L80 and P110 heat treated mechanicals
  • NPS 2inch to 12inch
  • Schedules 120 through XXH
  • Non-Scheduled walls through 1.5inch

Key: AISI 4130 pipe, ASTM A519 pipe, A519 4130 pipe

TOLERANCES

Condition OD Wall
Annealed or Normalized ASTM A519 ASTM A519
Quenched and Tempered +/-1% +/-12.5%

Mechanical Properties
The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

Mechanicals Heat Condition Hardness Yield Tensile
A519-4130 / 4140 Quenched and Tempered 28-32 RC Not Tested Not Tested
API 5CT L80 in 4519-4100 Quenched and Tempered 18-22 RC 80 – 95 ksi 95 ksi min
API 5CT P110 in 4519-4100 Quenched and Tempered 30-36 RC 110 – 140 ksi 125 ksi min
API 5CT Q125 in 4519-4100 Quenched and Tempered 32-36 RC 125 – 150 ksi 135 ksi min

Mechanical Tubing Delivery Condition : 

  • As different requirements,It including Size, Packing,Fixed Length,Random Length,And Different Annealing condition etc. (BK,NBK.Bright annealing …)
  • CW-Cold Worked SR-Stress Relieved A-Annealed N-Normalized

ASTM A519 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing

AISI is the Acronym of American Iron and Steel Institute

AISI和ASTM是美国的两种行业标准,其推行机构不同,但是指向材料的含义是一样的。AISI——美国钢铁学会标准,ASTM ——美国材料与试验协会标准。
在美国还有很多其他的标准推行机构,ANSI 美国国家标准,ASME 美国机械 工程师协会标准等。
日本也有这种情况发生,有些可能相当于中国原来的“部标”,只是他们那些没有统一。
补充:它们的成分可能会有微小的差异,但性能差别不大,所以可以不作区别。

The American Iron and Steel Institute (AISI) is an association of North American steel producers. Its predecessor organizations date back to 1855 making it one of the oldest trade associations in the United States. AISI assumed its present form in 1908, with Elbert H. Gary, chairman of the United States Steel Corporation, as its first president.
Its development was in response to the need for a cooperative agency in the iron and steel industry for collecting and disseminating statistics and information, carrying on investigations, providing a forum for the discussion of problems and generally advancing the interests of the industry.
AISI spearheads initiatives to favorably profile the industry’s reputation.

About NCTV

www.yaang.com provide a wide range of steel products as Steel pipe, Steel pipes and seamless pipes, Alloy pipes, Pipe fittings, Composite steel pipe used in the industry, construction etc.

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