EN 10217-7 Heat Exchanger Tube

EN 10217-7 specifies technical delivery conditions for welded stainless steel tubes for pressure purposes. This page focuses on tube selection for heat exchangers and related thermal equipment: buyers should confirm the equipment design requirements, grade, outside diameter, wall thickness, length, surface condition, testing, and documentation before ordering.

For general process or pressure piping, see the separate EN 10217-7 industrial pressure pipe page. For other heat-exchanger tube specifications, compare ASTM A249 and ASTM A269.

Dimensions of EN 10217-7 Heat Exchanger Tubing

Outside Diameter	Thickness(mm)
(mm)	1.0	1.2	1.5	1.6	2.0	2.3	2.5	3.0	3.2	3.5	4.0	5.0	5.5	6.0	6.5	7.1	8.0	9.0	10.0
10	√	√
12	√	√	√	√
15	√	√	√	√	√
16	√	√	√	√	√
17.2			√	√	√	√	√
18/20	√	√	√	√	√
21.3		√	√	√	√	√	√	√
22	√	√	√	√	√
25	√	√	√	√	√	√	√	√
26.9		√	√	√	√	√	√	√
28/30	√	√	√	√	√	√	√	√
31.8/32	√	√	√	√	√	√	√	√
33.7		√	√	√	√	√	√	√	√	√	√
35/38/38.1	√	√	√	√	√	√	√	√
40	√	√	√	√	√	√	√	√
42.4	√	√	√	√	√	√	√	√	√	√	√	√
44.5	√	√	√	√	√	√	√	√
48.3		√	√	√	√	√	√	√	√	√	√	√
50.8/51		√	√	√	√	√	√	√
54/57		√	√	√	√	√	√	√
60.3		√	√	√	√	√	√	√	√	√	√	√
63.5		√	√	√	√	√	√	√
70		√	√	√	√	√	√	√
76.1			√	√	√	√	√	√	√	√	√	√	√
88.9/101.6			√	√	√	√	√	√	√	√	√	√	√	√
114.3			√	√	√	√	√	√	√	√	√	√	√	√
139.7						√	√	√	√	√	√	√	√	√
168.3							√	√	√	√	√	√	√	√	√	√
219.1							√	√	√	√	√	√	√	√	√	√	√
273							√	√	√	√	√	√	√	√	√	√	√	√
323.9										√	√	√	√	√	√	√	√	√
355.6										√	√	√	√	√	√	√	√	√
406.4											√	√	√	√	√	√	√	√
457											√	√	√	√	√	√	√	√
508												√	√	√	√	√	√	√	√

EN 10217-7 Grades and AISI Equivalents

Steel Name	Steel Number	AISI Grade
X2CrNi18-9	1.4307	304L
X5CrNi18-10	1.4301	304
X2CrNiMo17-12-2	1.4404	316L
X6CrNiTi18-10	1.4541	321
X6CrNiMoTi17-12-2	1.4571	316Ti
X2CrNiMo18-15-4	1.4438	317L
X2CrNiMoN22-5-3	1.4462	2205

Application

Stainless steel tubes are widely used in heat exchangers due to their excellent thermal conductivity, corrosion resistance, and durability. Heat exchangers are critical components in industries such as chemical processing, oil and gas, power generation, HVAC, and refrigeration. Stainless steel tubes are particularly favored for their ability to withstand high temperatures, pressure, and corrosive environments.

EN 10217-7 Heat Exchanger Tube

Dimensions of EN 10217-7 Heat Exchanger Tubing

EN 10217-7 Grades and AISI Equivalents

Application

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