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{"title":"Stainless Steel Seamless Pipe ASTM A312 TP304, Oil and Gas Usage","imgUrl":"https:\/\/img.chinax.com\/nimg\/d7\/6a\/ce7addeaf145b837804b99d07cf3-200x200-1\/stainless_steel_seamless_pipe_astm_a312_tp304_2c_oil_and_gas_usage.jpg","attrs":{"Place of Origin":"China","Brand Name":"YUHONG","Certification":"ABS, GL, DNV, NK, PED, AD2000, CCS, ISO 9001-2008","Minimum Order Quantity":"100KGS"}}
ASTM A312 TP904L stainless Steel Pipe Large Outside Diameter For Chemical / Oil / Marine
Yuhong Special Steel has been operating seamless welded pipes and tubes for austenitic stainless steel and nickel alloy steels (Hastelloy, Monel, Inconel, Inkoloy) for more than 25 years, and sells steel tubes and tubes every year. More than 80,000 tons. Our customers have covered more than 45 countries, such as Italy, the United Kingdom, Germany, the United States, Canada, Chile, Colombia, Saudi Arabia, South Korea, Poland, Singapore, Australia, France, etc.
Description
Material 1.4539(alloy 904L) is an austenitic special steel with high molybdenum content, high copper content and very low carbon content.
Our product range in 1.4539 are tubes and pipes, fittings and flanges, accessories.
Some of the quality tests carried out by our quality department includes:
Corrosion Test
Only when specifically requested by the customer
Chemical Analysis
Conduct tests according to required quality standards
Destructive / Mechanical Testing
Tensile | Hardness | Flattening | Flare | Flange
Reverse-bend and Re. flat tests
Fully compliant with relevant standards and ASTM A-450 and A-530 specifications, ensuring trouble-free extension, welding and use on the client side
Eddy Current Testing
Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System
Hydrostatic Testing
100% hydrostatic test, check pipe leaks according to ASTM A 450 specification, the maximum pressure we can support is 20Mpa/7s.
Air Under Pressure Test
Check for any signs of air leakage
Visual Inspection
After passivation, each tube is subjected to a thorough visual inspection by trained personnel to detect surface defects and other defects
Supplementary Testing : In addition to the above tests, we also carry out supplementary tests on finished products. Tests carried out in this regard include:
Eddy Current Testing
O.P Testing
Radiography Testing
Corrosion Testing
Micro Testing
Macro Testing
IGC Testing
Ultrasonic testing
Liquid Penetrate testing
Material No.
1.4539
EN Symbol (short)
X1NiCrMoCu25-20-5
AISI/SAE
—
UNS
N08904
AFNOR
Z 2 NCDU 25-20
B.S.
—
Alloy
alloy 904L
Registered work's label
—
Normen
VdTÜV 421 , SEW 400
Chemical composition ¹
C ≤ %
Si ≤ %
Mn ≤ %
P ≤ %
S ≤ %
Cr %
Mo %
Ni %
V
0,02
0,70
2,0
0,030
0,010
19,0-21,0
4,0-5,0
24,0-26,0
Nb
Ti
Al
Co
Cu %
N ≤ %
Fe
1,20-2,00
0,15
¹ in accordance with Key to Steel 2001
Special characteristics
Temperature range:
Density kg/dm³
Hardness (HB)
pressure bomb/pressure vessel - 60°C bis 400°C
7,9
≤ 230
excellent stability against pitting corrosion, stress corrosion and intergranular corrosion
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
