Name: ASTM A312 TP304H / 1.4948 Stainless Steel Seamless Pipe Pickled Annealed Round Pipe
Brand: Yuhong Group Co.,Ltd
SKU: ASTM A312 TP304H Stainless Steel Seamless Pipe
Price: 150000 USD
Availability: InStock

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ASTM A312 TP304H / 1.4948 Stainless Steel Seamless Pipe Pickled Annealed Round Pipe

Product Details:

Place of Origin:	CHINA
Brand Name:	YUHONG
Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:	ASTM A312 TP304H Stainless Steel Seamless Pipe

Payment & Shipping Terms:

Minimum Order Quantity:	500KGS
Packaging Details:	Ply-wooden Case/ Bundle with plastic Cap
Delivery Time:	7 DAYS
Payment Terms:	L/C,T/T

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Detailed Product Description

Product Name:	Stainless Steel Seamless Pipe	Standard:	ASTM A312 / ASME SA312
Material:	TP304H / 1.4948	O.D.:	1/2" To 48"
W.T.:	SCH 5S To SCH XXS	Length:	Single Random, Double Random & Cut Length
End:	Plain End, Beveled End	Type:	Seamless, Welded
Application:	Chemical And Petrochemical Plants, Oil And Gas Plants, Refineries, Power Plants...
High Light:	ASTM A312 TP304H Stainless Steel Pipe, 1.4948 Steel Seamless Pipe

ASTM A312 / ASME SA312 TP304H Stainless Steel Seamless Pipe 1.4948 Steel Pipe

A high-temperature-resistant stainless steel pipe, made without a weld seam, that has been heat-treated to soften it and acid-cleaned to make it clean and corrosion-resistant, specifically designed for long-term service above 550°C (1022°F) where normal stainless steel would creep and fail.

The single biggest reason to choose TP304H is superior creep rupture strength at elevated temperatures (> 550°C / 1022°F), combined with good oxidation resistance and lower cost than stabilized or high-alloy grades.

Equivalent Grade of ASTM A312 TP304H / 1.4948 Stainless Steel Seamless Pipe

EU/EN

UNS

JIS

AFNOR

GOST

ISO

X6CrNi18-10 (1.4948)

304H

S30409

SUS304H

Z6CN18-09

08KH18N10

X7CrNi18-9

European equivalent grade for Austenitic creep resisting steel 304H ( AISI, ASTM, UNS): X6CrNi18-10 (1.4948)
Chemical composition and properties of european equivalents (EN) for 304H (USA, AISI, ASTM, UNS): X6CrNi18-10 (1.4948)

**Chemical Composition % of ASTM A312 TP304H / 1.4948 Stainless Steel Seamless Pipe**
Grade	UNS Designation	Composition, %
Grade	UNS Designation	Carbon	Manganese	Phosphorus, max	Sulfur, max	Silicon	Chromium	Nickel
304H	S30409	0.04-0.10	2.00	0.045	0.03	0.75	18-20	8-10.5

Summary Table – Stainless Steel TP304H vs. Other Stainless Steels

Grade	Best Application	Why Choose 304H Over It?	Why Choose Other Over TP304H?
304/304L	General purpose, low temperature, wet service	For high T > 550°C: TP304H has far better creep life.	Below 450°C or welded corrosive service: 304L avoids sensitization.
316/316L	Chloride and acid resistance	TP304H is cheaper and has higher creep strength above 550°C.	Need pitting resistance or service below 500°C with chlorides.
321H	High temperature + welded corrosive service	TP304H is 20–30% cheaper, similar oxidation, adequate creep for many boilers.	Your welded assembly will see aqueous corrosion during shutdowns.
347H	Highest creep among austenitics	TP304H is 30–40% cheaper, available off-the-shelf, easier to machine.	You need maximum creep strength and resistance to intergranular corrosion.
310H	Extreme oxidation up to 1150°C	TP304H is far cheaper and sufficient below 925°C.	Operating temperature regularly > 950°C.

Applications

Because of its high-temperature mechanical strength, you will find TP304H seamless pipe in:

Power Generation: Superheater and reheater tubes in coal/gas-fired boilers.
Petrochemical: Furnace tubes, heat exchangers, and high-temperature hydrocarbon service piping.
Refineries: Catalytic reformers and high-temperature flue gas systems.
Industrial Heating: Radiant tubes, burner parts, and kilns.