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{"title":"Hollow bar , heavy thickness pipe, 8",10",12",14",SCH40S , 80S, 100, 120, 160 ,","imgUrl":"https:\/\/img.chinax.com\/nimg\/da\/92\/2c1d5a072db5a64a592b92a1b6b2-200x200-1\/hollow_bar_2c_heavy_thickness_pipe_2c_8_22_2c10_22_2c12_22_2c14_22_2csch40s_2c_80s_2c_100_2c_120_2c_160_2c_xxs_stainless_steel_sea.jpg","attrs":{"Place of Origin":"China","Brand Name":"YUHONG","Certification":"ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008","Minimum Order Quantity":"100KGS"}}
{"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"}}
Strictly in line with ASTM A312 & TP316L standard, ultra-low carbon formulation for enhanced corrosion resistance, no welding sensitization risk:
Element
Chemical Symbol
Content Range (wt%)
Chromium
Cr
16.00 - 18.00
Nickel
Ni
10.00 - 14.00
Molybdenum
Mo
2.00 - 3.00
Carbon
C
≤ 0.03
Manganese
Mn
≤ 2.00
Silicon
Si
≤ 1.00
Phosphorus
P
≤ 0.045
Sulfur
S
≤ 0.030
Iron
Fe
Remainder
Mechanical Properties Details (Compliant with ASTM A312)
Mechanical Indicator
Unit
Minimum Requirement
Tensile Strength
MPa
≥ 485
Yield Strength (0.2% Offset)
MPa
≥ 170
Elongation (in 50mm)
%
≥ 40
Hardness (Brinell)
HB
≤ 201
Impact Toughness (at 20°C)
J
≥ 100
Superior Performance Characteristics
Superior All-Round Corrosion Resistance: Molybdenum-enhanced alloy system outperforms 304/304L; highly resistant to pitting, crevice corrosion, intergranular corrosion and general corrosion in chloride-rich, acidic, alkaline, saltwater and harsh chemical media.
Low-Carbon Welding Advantage: ≤0.03% carbon content eliminates sensitization during welding/thermal processing; no post-weld heat treatment (PWHT) required for most industrial applications, reducing fabrication costs and time.
Excellent High Pressure & Temperature Performance: Designed for high-pressure piping systems; maintains stable mechanical properties at continuous high temperatures up to 815°C and intermittent use up to 870°C, suitable for high-pressure steam and thermal fluid transfer.
Precise Dimensional Tolerance: Cold drawn/hot finished seamless process, uniform wall thickness, smooth inner/outer surface; low flow resistance, suitable for precision fluid and gas transfer in industrial piping systems.
Excellent Weldability & Formability: Easy to weld via TIG/MIG/MMA processes; good cold/hot formability for bending, flanging, expanding and threading, adaptable to various on-site fabrication needs.
Durable & Oxidation Resistant: Resists high-temperature oxidation and chemical aging in harsh industrial environments; no rust or material degradation, significantly reducing maintenance and replacement costs.
Sanitary Optional Surface: Food-grade polished finish (2B/No.4/8K) available, no heavy metal leaching, meets GMP/3A sanitary standards for food, beverage and pharmaceutical applications.
Additional Product Advantages
100% Seamless Structure: No weld seam defects, higher pressure-bearing capacity, anti-fatigue and anti-cracking performance for extreme working conditions.
Customizable Specifications: Outer Diameter 10mm - 610mm, Wall Thickness 1.0mm - 40mm; cut-to-length, threading, beveling and coating services available as customer requirements.
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
