ASTM A312 TP 304 SS Seamless Pipe in Stock

If you are searching for ASTM A312 TP 304 stainless steel seamless pipes in stock at competitive prices, Gnee is your trusted partner. With a large warehouse inventory, we supply 304 seamless pipes in a wide range of sizes and finishes, ready for immediate delivery to meet urgent project needs across oil & gas, chemical processing, food & beverage, marine, and construction industries.

 

what is ASTM A312 TP 304 Seamless Pipe?

ASTM A312 TP 304 seamless pipe is a special type of stainless steel pipe conforming to the ASTM A312 standard. It is made of grade 304 austenitic stainless steel and is produced seamlessly without welds. Made from an iron alloy containing approximately 18% chromium and 8% nickel, it offers excellent corrosion and oxidation resistance.It is suitable for high-pressure applications and for both general and critical industrial uses, such as in the food processing and chemical industries.

ASTM A312 TP 304 SS Seamless Pipe – Stock List

Outside Diameter (OD)	Wall Thickness (WT)	Length	Standard	Surface Finish	Availability
1/2" – 8"	SCH 10 – SCH 80	6M / 12M	ASTM A312	Annealed & Pickled, Polished	In Stock
10" – 24"	SCH 40 – SCH 160	6M / 12M	ASTM A312	Annealed & Pickled	In Stock
26" – 36"	SCH 10 – SCH 80	6M / 12M	ASTM A312	Polished / Custom Finish	Limited Stock
Custom Sizes	As required	Cut-to-size	ASTM A312	BA / Mirror / Brushed	On Order

 

GNEE offers a stock of TP 304 stainless steel seamless pipes that comply with the ASTM A312 standard. The pipe diameters range from 1/8" to 24" (DN6 to DN600) and the wall thickness ranges from 1.0mm to 25.4mm (SCH 5S to SCH XXS). All stock materials are certified by both eddy current testing (ET) and hydraulic testing. The chemical composition and mechanical properties strictly comply with ASTM A312/ASME SA312 specifications, ensuring that each steel pipe has excellent corrosion resistance and mechanical reliability.

We also offer ASTM A312 TP304 stainless steel large diameter pipe, ASTM A312 TP304 stainless steel welded pipe, and ASTM A312 Gr TP304 ERW pipe. 

Value-Added Services

Cutting, bending, and polishing

Third-party inspection (SGS, BV, TUV)

Export-standard seaworthy packaging

Fast delivery within 7–15 days