ASTM A312 TP304 Stainless Steel Welded Pipes

ASTM A312 TP304 Stainless Steel Welded / ERW Pipe

ASME SA312 · UNS S30400 · 18Cr-8Ni (approx. 18–20% Cr, 8–10.5% Ni)

Savoy Piping Inc. supplies ASTM A312 TP304 welded pipe — the standard 18/8 austenitic grade for general corrosive service, food/pharma hygiene, and fabrication-friendly piping.

Grade hub · A312 Seamless · A312 Welded · A213 · A269 · A358 EFW · SS hub · A312 Seamless twin

Also see: Stainless steel pipe & tube hub · Seamless pipe · Buttweld fittings · Flanges.

What is A312 TP304?

304 pipe to A312/SA312 for general corrosive service. Strength guide: min tensile ~515 MPa (75 ksi), min yield ~205 MPa (30 ksi) for common A312 pipe grades — confirm PO / ASME SA-312.

Typical applications

• Food, dairy, brewery and pharmaceutical process lines
• Architectural / structural stainless piping where chloride load is moderate
• Chemical handling of mild corrosives and clean utilities
• Cryogenic and low-temperature services that benefit from austenitic toughness

Selection guidance

Choose 304 for general corrosion resistance and formability. Prefer 304L for heavy welded sections; 304H when elevated-temperature carbon is required; move to 316/316L for chloride / marine exposure.

ASTM A312 TP304 Stainless Steel Welded Pipes Range

Chemical Composition of ASTM A312 TP304 Stainless Steel Welded Pipes

The chemical composition of grade 304 Stainless Steel is outlined in the following table

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
304	min.	-	-	-	-	-	18.0	-	8.0	-
	max.	0.08	2.0	1.00	0.045	0.030	20.0		11.0	0.10
304L	min.	-	-	-	-	-	18.0	-	8.0	-
	max.	0.035	2.0	1.00	0.045	0.030	20.0		12.0	0.10
304H	min.	0.04	-	-	-	-	18.0	-	8.0	-
	max.	0.10	2.0	1.00	0.045	0.030	20.0		11.0

Mechanical Properties of ASTM A312 TP304 Stainless Steel Welded Pipes

The Mechanical Properties of grade 304 Stainless Steel are displayed in the following table.

ASTM A312 TP304 Stainless Steel Welded Pipes Physical Properties

Physical properties of 304 grade stainless steel in the annealed condition

SPECIFICATION COMPARISON for ASTM A312 Grade 304 Stainless Steel Welded Pipes

Grade specifications for 304 grade stainless steel

ASTM A312 TP304 Stainless Steel Welded Pipes Apllicantion

The grade 304 steel can be made into plates, sheets, and coils to be used in the following:

• Food processing equipment, particularly in beer brewing, milk processing & wine making.
• Kitchen benches, sinks, troughs, equipment and appliances
• Architectural panelling, railings & trim
• Chemical containers, including for transport
• Heat Exchangers
• Woven or welded screens for mining, quarrying & water filtration
• Threaded fasteners
• Springs

ASTM A312 TP304 Stainless Steel Welded Pipes Nominal Bore Sizes

• 1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 3/4" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 1" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 1-1/4" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 1-1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 2-1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 3" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 3-1/2" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 4" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 5" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 6" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 8" NB in ThicknessSchedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 10" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 12" NB in ThicknessSchedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 14" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 16" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS
• 18" NB in Thickness Schedule 10, Schedule 40, Schedule 80, Schedule 160, Schedule XXS

Frequently asked questions — ASTM A312 TP304 Welded / ERW Pipe

What is ASTM A312 TP304?

A312 TP304 is austenitic stainless welded pipe, UNS S30400, for corrosive and high-temperature service as specified.

Seamless or welded?

This page is welded/ERW. Use seamless when the datasheet requires SMLS.

304 chemistry?

18Cr-8Ni (approx. 18–20% Cr, 8–10.5% Ni)

Documents?

EN 10204 3.1 MTC standard; 3.2 and TPI on request.

Supplying ASTM A312 TP304 Stainless Steel Welded Pipes to Countries -

We export ASTM A312 TP304 Stainless Steel Welded Pipes to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Myanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rico, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherlands, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc

Savoy Piping Inc. is a well known worldwide Exporter of ASTM A312 TP304 Stainless Steel Welded Pipes , Savoy Piping Inc. is committed to provide each and every customer with the highest standard of customer service. We deal in ASTM A312 TP304 Stainless Steel Welded Pipe in India and Overseas, offering a wide range of ASTM A312 TP304 Stainless Steel Welded Pipes .