Austenitic steel ASME SA213 · TP304H

Short Description:

The high-carbon chromium nickel stainless steel is mainly used in heat exchangers, boilers, superheaters, and power generation systems. Designed for elevated temperature service up to 815°C, this grade delivers superior creep strength, high temperature resistance, and good oxidation properties. Furthermore, this grade is suitable for TIG, MAG and manual arc welding procedures.

Tube Grade: TP304H, AISI 304H, EN 1.4948, UNS S30409

Tube Type: Seamless

Tube Form: Straight, U Bend, Cut-to-Length Pieces

Surface Finish: Solution Annealed & Pickled (AP), Bright Annealed (BA), Polished

Standards (ASME/ASTM): ASME SA213, ASTM A213

Standards (EN): EN 10216-5

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Product Detail

Product Tags

TP304H Stainless Steel Tubes, 1.4948 Stainless Steel Tubes

Item	Specification / Details
Stainless Steel Tube	ASME SA213, ASTM A213
Tube Size	1/8″ OD to 5″ OD (6.35 mm to 127 mm)
Thickness Range	0.5 mm – 15 mm
Type	Seamless
Form	Round, U Bend
Length	Single Random, Double Random & Required Length / U Bend
End	Plain End, Beveled End
End Protection	Plastic Caps
Outside Finish	2B, BA, AP, Polished
Delivery Condition	Solution Annealed and Pickled, Bright Annealed, Cold Drawn
Inspection, Test Reports	Mill Test Certificates, EN 10204 3.1, Eddy Current Test, Hydrostatic Test
Packing	Packed in Wooden Boxes, or as per Customers Requests
Specials	Sizes and Specifications other than above can be manufactured on request

TP 304H . UNS S30409 . 1.4948 Chemical Composition

Chemical Composition (in % by mass)

Grade	C	Si (Max.)	Mn (Max.)	P (Max.)	S (Max.)	Cr	Ni	Mo	Ti	N	Others
304H	0.04 – 0.10	1.00	2.00	0.045	0.030	18.0 – 20.0	8.0 – 11.0	-	-	-	-
1.4948	0.04 – 0.08	1.00	2.00	0.035	0.015	17.0 – 19.0	9.0 – 12.0	-	-	-	-

TP 304H . UNS S30409 . 1.4948 Mechanical Property

Mechanical Property & Heat Treatment

Grade	Rp 0.2 Mpa (Min.)	Rp 1.0 Mpa (Min.)	Rm Mpa (Min. – Max.)	A (%) (Min.)	Hardness (HRB) (Max.)	Heat Treatment
304H	205	-	515	35	90	Solution Annealed (Min. 1040°C)
1.4948	190	220	500 – 700	35	-	Solution Annealed