What is ASTM A268 TP410 Tubing?

ASTM A268 TP410 tubing is a standard specification for seamless and welded ferritic and martensitic stainless steel tubing for general corrosion-resisting and high-temperature service. TP410 is the material grade specified in this standard. This steel with 12% chromium content has a deep hardening ability, which means it can form hard martensite at relatively slow cooling rates of 20°C/minute. However, these hard and brittle martensites require rapid tempering at high temperatures to improve impact properties. A higher nickel content can lead to a better combination of properties. The steel is not highly resistant to aerated seawater and welding is limited due to the risk of hardzone cracking, requiring high preheat and immediate post-weld tempering. Compared to austenitic steels, Type 410 has lower corrosion resistance, but can withstand mild acids, alkalies, fresh water, and atmospheric conditions. It is also the most economical of the stainless steels, containing only enough to provide stainless properties.

ASTM A268 TP410 Tubing Chemical composition mass in %

Material grade	Norm	C max.	Si max.	Mn max.	P max.	S max.	Cr	Ni	Mo	Ti	others
1.4006	DIN 17456	0,080 - 0,150	1,00	1,00	0,045	0,030	12,00 - 14,00	0,75
TP410	ASME SA / ASTM A 268	0,150	1,00	1,00	0,040	0,030	11,50 - 13,50

ASTM A268 TP410 Tubing Mechanical properties and heat treatment

Material grade	Norm	Rp 0,2 MPa min.	Rp 1,0 MPa min.	Rm MPa min. max.	A min.%	Hardness HRB max.	Heat treatment
1.4006	DIN 17456	200	250	450 - 650	20		annealed
TP410	ASME SA / ASTM A 268	205		415	20	95	annealed

ASTM A268 TP410 Tubing Scope of dimensions:

	0,89	1,00	1,20	1,24	1,65	1,82	2,00	2,11	2,30	2,35	2,50	2,60	2,64	2,77	2,87	3,00	3,20	3,25	3,60	3,85	3,91	4,00	4,40	5,50
AD	0,035			0,048	0,065	0,072		0,083		0,093			0,104	0,109	0,113		0,126	0,128			0,154
[mm]
6,00
6,35
7,00
7,50
8,00
9,00
9,53
10,00
11,00
12,70
13,00
15,00
15,88
16,00
16,80
17,15
18,00
19,00
19,05
20,00
21,34
22,00
22,23
23,00
25,00
25,40
26,00
26,67
28,00
30,00
31,75
32,00
33,40
36,00
38,10

Dimensions not shown on request

ASTM A268 TP410 Tubing Advantages:

1. High strength and hardness

2. Good corrosion resistance in mild environments

3. Good oxidation resistance at high temperatures

4. Good wear resistance

5. Easily machinable and weldable

ASTM A268 TP410 Tubing Typical Usages:

1. Boiler tubes and superheater tubes in power generation plants

2. Heat exchanger tubes in chemical processing plants

3. Automotive exhaust systems

4. Aircraft components

5. Surgical and dental instruments

6. Cutlery and kitchen knives

ASTM A268 TP410 Tubing|Martensitic steel tubing