ASTM A358 TP316L Stainless Steel Pickled Annealed Welded Pipe

ASTM A358/ASME SA358 specifications cover electric fusion-welded austenitic chromium-nickel stainless steel pipes designed for industrial applications involving high-temperature, high-pressure corrosive media transportation, food-grade sanitary environments, and marine engineering projects.

 

GNEE provides ASTM A358 TP316L stainless steel welded pipes (pickled and annealed condition), fabricated through tungsten inert gas (GTAW) or plasma welding processes, followed by full solution annealing and acid pickling treatment. These pipes exhibit excellent corrosion resistance (particularly against pitting, crevice corrosion, and chloride environments), superior weldability, and high-temperature strength, making them suitable for demanding conditions in chemical processing, marine engineering, food equipment, and high-temperature fluid conveyance systems.

 

ASTM A358 TP316L pickled and annealed pipes offer an outer diameter range of 6.0–101.6 mm (1/4"–4") (with options for larger custom sizes), wall thickness of 0.5–4.0 mm (adjustable), and mechanical properties meeting ASTM A358 standards: tensile strength ≥485 MPa, yield strength ≥170 MPa, and elongation ≥40%. The surface is uniformly silver-gray after acid pickling and annealing, with smooth internal walls free from oxide residues, ensuring low fluid resistance and compliance with cleanliness requirements.

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ASTM A358/ASME SA358 TP316L Stainless Steel Chemical Composition %

Grade	C	Cr	Mn	Mo	Ni	P	S	Si
TP316L	0.03	16.0-18.0	2.0	2.0-3.0	10.0-14.0	0.045	0.03	0.75

 

 

 

 

ASME SA358 Steel Pipes Mechanical Properties

Material	Heat	Temperure	Tensile Strength	Yield Strength	Elongation %, Min
	Treatment	Min.	Ksi (MPa), Min.	Ksi (MPa), Min.
		º F(º C)
TP316	Solution	1900(1040)	75(515)	30(205)	35
TP316L	Solution	1900(1040)	70(485)	25(170)	35

 

ASTM A358 TP316L Stainless Steel Compare with ASTM A312 TP316L

Characteristic	ASTM A358 TP316L	ASTM A312 TP316L
Process scope	Only electric fusion welding	Seamless+Electric Welding
Wall thickness tolerance	± 10% (stricter)	±12.5%
Application focus	High temperature corrosive high-pressure pipeline	General corrosive pipeline

 

 

ASTM A358/ASME SA358 TP316L Stainless Steel Welded Pipe Application

Chemical industry: ASTM A358 TP316L stainless steel welded pipe is suitable for concentrated sulfuric acid dilution systems due to its strong resistance to sulfuric acid corrosion; Due to its resistance to chloride ion stress corrosion, it is suitable for brine pipelines in chlor alkali engineering.

Energy Field: ASTM A358 TP316L stainless steel welded pipe can be used for desalination water pipelines in nuclear power plants, provided that low cobalt content control is required. It can also be used for seawater cooling systems on offshore platforms.

Food and pharmaceutical: ASTM A358 TP316L stainless steel welded pipe with Ra ≤ 0.8 μ m internal surface roughness can be used for CIP/SIP cleaning of pipelines and can also be used as bioreactor culture medium for transportation.

 

ASTM A358 / ASME SA358 TP316L Stainless Steel Welded Pipe Inspection Requirements

Quality Inspection
Nondestructive Testing: 100% radiographic testing (RT) or ultrasonic testing (UT) in accordance with ASTM E164/E213; weld penetrant testing (PT) in accordance with ASTM E165
Pressure Testing: Hydrostatic testing at ≥1.5 times the design pressure in accordance with the general requirements of ASTM A450
Surface Quality: Ensure the absence of cracks, lack of fusion, and other defects, and the inner surface should have a smooth transition.

 

GNEE supports production according to ASTM A358 and ASME SA358 standards, providing a factory warranty and internationally recognized inspection certificates (such as EN 10204 3.1). It is suitable for industrial piping systems that require high weld quality, corrosion resistance, and dimensional accuracy. GNEE can quickly respond to customer needs and provide customized solutions.Email: info@gneestainless.com

 

Package For Stainless Steel Pipes:
1)big order: in bulk.
2)Small order: bundled by steel strips.
3)Woven cloth with 7 slats.
4)Plastic/snakeskin bags.
5)According to customer's requirement.