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ASTM vs. EN Pipe Specifications

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An overview of the most common ASTM and EN/DIN pipe specifications, material grades within each specification, and, when possible, the equivalent grades between ASTM vs. EN pipe grades.

CARBON STEEL PIPES

Application Pipe Specifications Material Grades
High-temperature Carbon Steel EN 10225 S355G15, S460G6
BS 7191 355EM
API 5L Grade B, X42, X52, X56, X60, X65, X70, X80, X100
ASTM A519 SAE 4130, 4140
ASTM/ASME A/SA53 Grade A, B
ASTM A252 Grade 2, 3
Line Pipe CSA Z245.1 359, 414, 448, 483
ASTM/ASME A/SA53 Grade A, B
ASTM/ASME A/SA106 Grade B, C
ASTM A252 Class 2, 3
EN 10216-2 Seamless P235GH (1.0345) / P265 GH (1.0425)
EN 10217-5 Welded P235GH (1.0345)  / P265GH (1.0425)
Low temperature ASTM/ASME A/SA333 P215NL (1.0451)
EN 10216-3
P355N (1.0562)
P355NH (1.0565)
P355NL1 (1.0566)
P275NL1 (1.0488)
P275NL2 (1.1104)
L290NB (1.0484)
L360NB (1.0582)
ASTM/ASME A/SA 671/672 Grade 60, 65, 70

ALLOY STEEL PIPES

Application Pipe Specifications Material Grades
Alloy Steel Pipe (High Pressure/Temperature) ASTM/ASME A/SA 335 P1, P5, P9, P11, P22, P91, P92
ASTM/ASME A/SA 691 1-1/4CR, 2-1/4CR, 5CR, 9CR, 91
EN 10216-2 Seamless 16Mo3 (1.5415)
13CrMo4-5 (1.7335)
10CrMo9-10 (1.7380)
11CrMo9-11 (1.7383)
X10CrMoVnb9-1 (1.4903)
X10CrWMoVnb9-2 (1.4901)
WB36 – 15NiCuMoNb5-6-4 (1.6368)
10CrMo5-5 (1.7338)14MoV6-3 (1.7715)
EN 10217-5 Welded 16Mo3 (1.5415)
13CrMo4-5 (1.7335)
10CrMo9-10 (1.7380)
11CrMo9-11 (1.7383)
X10CrMoVnb9-1 (1.4903)
X10CrWMoVnb9-2 (1.4901)
WB36 – 15NiCuMoNb5-6-4 (1.6368)
10CrMo5-5 (1.7338)14MoV6-3 (1.7715)

STAINLESS STEEL PIPES

Pipe Specifications ASTM Grade UNS Equivalent EN Equivalent Werkstoff Equivalent
ASTM A312/358 & EN 10216-2 Seamless / EN 10217-5 Welded 304 S30400 X5CrNi18-10 1.4301
304L S30403 X2CrNi19-11 1.4306
304H S30409 X6CrNi18-11 1.4948
310 S31000 X15CrNiSi25-21 1.4841
310S S31008 X8CrNi25-21 1.4845
316 S31600 X5CrNiMo17-12-2 1.4401
316L S31603 X2CrNiMo17-2-2 1.4404
316Ti S31635 X6CrNiMoTi17-12-2 1.4571
321 S32100 X6CrNiTi18-10 1.4541
321H S32109 X8CrNiTi18-10 1.4878
347 S34700 X6CrNiNb18-10 1.455
347H S34709