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ASTM A312 Stainless Steel Seamless Pipe UNS N08904 / TP904L / DIN 1.4539

Categories Stainless Steel Seamless Pipe
Brand Name: YUHONG
Model Number: ASTM A312 TP904L Stainless Steel Seamless Pipe
Certification: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin: CHINA
MOQ: 500KGS
Payment Terms: L/C, T/T
Delivery Time: 7DAYS
Packaging Details: Ply-wooden Case/ Bundle with plastic Cap
Product Name: Stainless Steel Seamless Pipe
Standard: DIN, JIS, AMS, GB, AISI, ASME, ASTM, EN, GOST
Standard Specification: ASTM A312, ASME SA312
Material Grade: TP904L, UNS N08904, DIN 1.4539
OD: 1/8" TO 48"
WT: Sch 5 to Sch XXS
Length: Single Random, Double Random & Cut Length
Type: Seamless, Welded
End: Plain end, beveled end
Technique: Cold Drawn
Application: General Corrosive Service, Petroleum, Petrochemical Equipment
High Light: ASTM A312 TP904L Stainless Steel Seamless Pipe, Pickled Annealed Seamless Pipe
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Yuhong Group Co.,Ltd
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ASTM A312 Stainless Steel Seamless Pipe UNS N08904 / TP904L / DIN 1.4539

ASTM A312/ ASME SA312 TP904L / UNS N08904 Stainless Steel Seamless Pipe

Stainless Steel 904L, often referred to as SS904L, is an austenitic stainless steel alloy that contains a high percentage of nickel and chromium, along with additions of molybdenum and copper. When comparing SS904L to other stainless steel materials, particularly the more commonly used grades such as 304 and 316 stainless steels, several distinct advantages stand out:


Corrosion Resistance:

  • SS904L shines in highly corrosive environments, especially those containing chlorides. Its elevated nickel and molybdenum content gives it superior pitting and crevice corrosion resistance compared to 304 or 316 stainless steels. This is crucial for industries dealing with aggressive chemicals or marine applications.

Resistance to Stress Corrosion Cracking:

  • SS904L offers excellent resistance to stress corrosion cracking, a common issue in other stainless steels like 316 when exposed to high temperatures and chloride environments. This makes SS904L particularly suitable for applications in the chemical process industry.

High Temp Performance:

  • SS904L maintains its mechanical strength at elevated temperatures better than many other stainless steels. It can be useful in applications that involve heat, making it a reliable choice for heat exchangers and other critical components.

Versatile Applications:

  • Due to its combination of high corrosion resistance and good mechanical properties, SS904L is versatile and can be used in a wider array of applications, from pharmaceuticals to petrochemical plants. It can handle demanding environments that may not be suitable for lower-grade stainless steels.



ASTM A312 TP904L Stainless Steel Seamless Pipes Equivalent Grades

STANDARDUNS

WERK
STOFF NR.

KSJISBSAFNOREN
SS 904LN089041.4539STS 317J5LSUS 904L904S13Z2 NCDU 25-20

X1NiCrMo

Cu25-20-5



UNS N08904 Stainless Steel Seamless Pipe Chemical Composition

GradeCNiSiMoPSMnCrCu
SS 904L0.223-2814-50.0450.035219-23

1-2


Stainless Steel WERKSTOFF NR. 1.4539 Seamless Pipes Mechanical Properties

GradeTensile Strength (MPa) minElongation (% in 50mm) minYield Strength 0.2% Proof (MPa) minHardness
Rockwell B (HR B) maxBrinell (HB) max
SS 904L4903522070-90 typical-


Applications

  1. Chemical Processing: It's widely used in the chemical industry for handling aggressive chemicals and acids due to its corrosion resistance.
  2. Oil and Gas: Used in the oil and gas industry for pipelines, particularly in environments with high chloride levels that could cause pitting and stress corrosion cracking.
  3. Pharmaceuticals: Employed in pharmaceutical manufacturing processes where cleanliness and resistance to contamination are crucial.
  4. Power Generation: Utilized in power plants, particularly in heat exchangers, where high-temperature and corrosive environments are present.
  5. Marine Applications: Suitable for marine environments thanks to its ability to resist seawater and chlorides.
  6. Pulp and Paper Production: Used in processes that require durability against corrosive substances.
  7. Heat Exchangers: Commonly found in heat exchangers due to its thermal conductivity and corrosion resistance.

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