Austenitic steel ASME SA213 · TP321

Short Description:

The titanium-stabilized chromium-nickel austenitic stainless steel is mainly used in heat exchangers, boilers, superheaters, and high-temperature chemical processing systems. Designed with titanium additions to prevent chromium carbide precipitation at elevated temperatures, this grade exhibits exceptional resistance to intergranular corrosion across the 427°C to 816°C temperature range. Furthermore, this grade is suitable for TIG, MAG and manual arc welding procedures.

Tube Grade: TP321, AISI 321, EN 1.4541, UNS S32100

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

TP321 Stainless Steel Tubes, 1.4541 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 (无缝)
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 321 . UNS S32100 . 1.4541 Chemical Composition

Chemical Composition (in % by mass)

Grade	C (Max.)	Si (Max.)	Mn (Max.)	P (Max.)	S (Max.)	Cr	Ni	Mo	Ti	N (Max.)	Others
321	0.08	0.75	2.00	0.045	0.030	17.0 – 19.0	9.0 – 12.0		5x(C+N) – 0.70	0.10
1.4541	0.08	1.00	2.00	0.045	0.015	17.0 – 19.0	9.0 – 12.0		5xC – 0.70	-

TP 321 . UNS S32100 . 1.4541 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
321	205		515	35	90	Solution Annealed
1.4541	190	220	500 – 730	30		Solution Annealed