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.
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.
Sunny 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
|Annealed or Normalized||ASTM A519||ASTM A519|
|Quenched and Tempered||+/-1%||+/-12.5%|
The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.
|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
AISI is the Acronym of American Iron and Steel Institute
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。
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.