Stainless Steel Seamless Tube
ss tube(001)
stainless steel tube
steel welded tube

Stainless Steel Seamless Tube

1. Standard: ASTM A213/ASME SA213、ASTM A269/ASME SA269、ASTM B677/ASME SB677
2. Size: 1/2''~48''
3. Thickness: SCH5~SCHXXS
4. End: Beveled End, Plain End

Send Inquiry

Product Introduction

Stainless Steel Seamless Tube is perforated from solid round billets by hot rolling, cold rolling or cold drawing. There is no weld on the surface, which has stronger pressure bearing capacity than welded pipes. According to the production method, it can be divided into hot-rolled and cold-rolled pipes. According to different uses, there are thick-walled and thin-walled seamless steel pipes, and the size can be customized according to your needs. Including grades TP304, TP304L, TP316, TP316L, 316Ti, 316LN, 316Lmod, TP317, TP317L, TP321, 321H, TP310S, TP347, 317H, S31254, N08367, N08904. HT PIPE stainless steel pipe supplier guarantees product quality and preferential prices, looking forward to cooperating with you.

Stainless Seamless Tube Material Standard：

ASTM A213: Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

ASTM A269: Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service

ASTM B677 : Standard Specification for UNS N08904, UNS N08925, and UNS N08926 Seamless Pipe and Tube

Stainless Steel Seamless Tube Specifications

Pipe Specifications	ASTM A213 / ASME SA 213 ASTM A269 / ASME SA 269 ASTM B677 / ASME SB 677
Grade	TP304, TP304L, TP316, TP316L, 316Ti, 316LN, TP317, TP317L, TP321, 321H, TP310S, TP347, 254SMO, N08367, N08904, 904L, Etc.
Pipe Standard	DIN, JIS, ASTM, EN, GB, AISI, ASME
Thickness	0.3mm - 50 mm
Seamless Tube Size	3.35 mm OD To 101.6 mm OD, 15 NB to 150 NB IN
Tube End	Plain End, Beveled End, Treaded Pipe.

Contact now

Chemical Composition of Stainless Steel Seamless Tube

Grade	UNS	C≤	Mn	P≤	S≤	Si≤	Cr	Mo	Ni	Cu
TP304	S30400	0.08	2	0.045	0.03	1	18.0-20.0	-	8.0-11.0	-
TP304L	S30403	0.035	2	0.045	0.03	1	18.0-20.0	-	8.0-13.0	-
TP316	S31600	0.08	2	0.045	0.03	1	16.0-18.0	2.00-3.00	10.0-14.0	-
TP316L	S31603	0.035	2	0.045	0.03	1	16.0-18.0	2.00-3.00	11.0-14.0	-
316Ti	S31635	0.08	2	0.045	0.03	0.75	16.0-18.0	2.00-3.00	10.0-12.0	-
TP317	S31700	0.08	2	0.045	0.03	1	18.0-20.0	3.0-4.0	11.0-14.0	-
TP317L	S31703	0.035	2	0.045	0.03	1	18.0-20.0	3.0-4.0	11.0-15.0	-
TP321	S32100	0.08	2	0.045	0.03	1	17.0-19.0	-	9.0-12.0	-
321H	S32109	0.04-0.1	2	0.045	0.03	1	17.0-19.0	-	9.0-12.0	-
310	S31000	0.25	2	0.045	0.03	1.5	24.0-26.0	0.75	19.0-22.0	-
TP310S	S31008	0.08	2	0.045	0.03	1	24.0-26.0	0.75	19.0-22.0	-
TP347	S34700	0.08	2	0.045	0.03	1	17.0-19.0	-	9.0-13.0	-
254SMO	S31254	0.02	1	0.03	0.01	0.8	19.5-20.5	6.0-6.5	17.5-18.5	0.5-1.0
AL-6XN	N08367	0.03	2	0.04	0.03	1	20.0-22.0	6.0-7.0	23.5-25.5	0.75
F904L	N08904	0.02	2	0.04	0.03	1	19.0-23.0	4.0-5.0	23.0-28.0	1.0-2.0

Stainless Steel Seamless Tubing Mechanical Properties

Mechanical properties	Tensile, min, ksi[MPa】	Yield, min, ksi[MPa】	Elongation, %(min)	Hardness, HB(max)
TP304	75【515】	30【205】	35	192
TP304L	70【485】	25【170】	35	192
TP316	75【515】	30【205】	35	192
TP316L	70【485】	25【170】	35	192
316Ti	75【515】	30【205】	35	192
TP317	75【515】	30【205】	35	192
TP317L	75【515】	30【205】	35	192
TP321	75【515】	30【205】	35	192
321H	75【515】	30【205】	35	192
TP310	75【515】	30【205】	35	192
TP310S	75【515】	30【205】	35	192
TP347	75【515】	30【205】	35	192
S31254	98【675】	43【310】	35	220
N08367	100【690】	45【310】	30	241
N08926	94【650】	43【295】	35	256
N08904	71【490】	31【215】	35	192

Material Characteristics Of Stainless Steel Tubes

Stainless steel is an iron alloy containing at least 10.5% chromium, nickel, molybdenum, titanium, carbon, nitrogen and copper, which gives it excellent high-temperature strength and corrosion resistance. In addition, stainless steel is easy to clean and will not lose its luster. Compared with carbon steel, stainless steel pipes have higher low-temperature toughness, higher work hardening rate, higher strength, greater ductility and beauty.

Seamless Tube Cold Drawing Production Process

Round tube blank heating→piercing→heading→annealing→pickling→oiling→multi-pass cold drawing→billet tube→heat treatment→straightening→hydraulic test→marking→warehousing.

Seamless Pipe Vs Welded Pipe

Seamless pipe has higher strength and pressure resistance because it has no welds.
The performance of the welded part of the welded pipe will be weakened due to the welding process, and the pressure resistance is generally lower than that of seamless pipes. However, it has high production efficiency and low cost, and is more suitable for large-diameter pipeline applications.