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Butt Weld Fitting

Chemical & Mechanical Composition

Marking
Symbols
Materials From Chemical Composition(Percent)
Max. or Range(Unless otherwise indicated)
Materials
C Si Mn P S Ni Cr Mo Ti Tensile
Strength Min
or Range Ksi(Mpa)
Yield
Strength
Min. Ksi(Mpa)

Longitudinal
Elongation in
2 in(50mm) Min.%

A234 WPB A106 Gr. B
A515 Gr. 65
A515 Gr. 70
P
PL
PL
0.30
0.28-0.33
0.31-0.35


0.10 Min
0.13-0.33
0.31-0.35

0.29-1.06
0.90
0.90
0.048
0.035
0.035
0.058
0.040
0.040
- - - -

60
65-85
70-90

(414)
(450-585)
(485-620)
35(241)
35(240)
38(260)
25
23
21
WPC A106 Gr. C P 0.35 0.10 Min 0.29-0.06 0.045 0.58 70 (483) 40(276) 30
WP1 A335 Gr. P1
A204 Gr. B
P
PL
0.10-0.20
0.20-0.27
0.10-0.50
0.13-0.32
0.30-0.80
0.90
0.045
0.035
0.055
0.040
0.44-0.65
0.41-0.64
55
70-90
(379)
(485-620)
30(207)
40(275)
30
21
WP12 A335 Gr. P12
A387 Gr. 12
P
PL
0.15
0.17
0.50
0.13-0.32
0.30-0.61
0.36-0.69

0.045
0.035

0.055
0.040
0.80-1.25
0.74-1.21

-
0.40-0.65

60
56-80
(414)
(380-550)
30(207)
33(230)

30
22

WP11 A335 Gr. P11
A387 Gr. 11
P
PL
0.15
0.17
0.50-1.00
0.44-4.86
0.30-0.61
0.36-0.69
0.030
0.040
0.030
0.035
1.00-1.50
0.94-1.56
0.40-0.65
0.40-0.70
60
60-85
(414)
(415-585)
30(207)
35(240)
30
22
WP22 A335 Gr. P22
A387 Gr. 22
P
PL
0.15
0.15-0.17
0.50
0.50
0.30-0.60
0.27
0.63
0.030
0.035
0.030
0.035
1.90-2.62
1.88-2.62
0.87-1.13
0.85-1.15
60
60-85
(414)
(415-585)
30(207)
30(205)
30
18
WP5 A335 Gr. P5
A687 Gr. 5
P
PL
0.15
0.15
0.50
0.50
0.30-0.60
0.27-0.63
0.030
0.040
0.030
0.030
4.00-6.00
4.00-6.00
0.45-0.65
0.40-0.70
60
60-85
(414)
(415-585)
30(207)
30(205)
30
18
WP9 A335 Gr. 9
A387 Gr. 9
P
PL
0.15
0.15
0.25-1.00
1.00
0.30-0.60
0.30-0.60
0.025
0.030
0.025
0.030
8.00-10.00
8.00-10.00
0.90-1.10
0.90-1.10
60
60-85
(414)
(415-585)
30(207)
30(205)
30
18
WP91 A335 Gr. 91 P
PL
0.08-0.12
0.18
0.12
0.20-0.50
0.20-0.50
0.30-0.60
0.30-0.60
0.020
0.020
0.010
0.010
0.400
0.400
8.00-9.50
8.00-9.50
0.85-1.05
0.85-1.05
85
85-110
585
585-760
60(415)
60(415)
-
18
A403 WP304 A312 Gr. TP304
A240 Type 304
P
PL
0.08
0.15
0.75
1.00
2.00
2.00
0.040
0.045
0.010
0.010
0.400
0.400
8.00-9.50
8.00-9.50
0.85-1.05
0.85-1.05
75
75
(517)
(517)
30(207)
30(205)
30
40
WP304H A312 Gr. Tp304H
A240 Type 304
P
PL
0.04-0.10
0.04-0.10
0.75
1.00
2.00
2.00
0.045
0.045
0.030
0.030
8.00-11.00
8.00-10.50
18.00-20.00
18.00-20.00
75
75
(517)
(515)
25(172)
25(175)
35
40
WP304L A312 Gr. TP304L
A240 Type 304L
P
PL
0.035
0.030
0.75
1.00
2.00
2.00

0.040
0.045

0.030
0.030
8.00-13.00
8.00-12.00
18.00-20.00
18.00-20.00
65
65
(448)
(448)
30(207)
30(205)
30
40
WP309 A312 Gr. TP309
A240 Type 309S
P
PL
0.15
0.08
0.75
1.00
2.00
2.00
0.040
0.045
0.030
0.030
12.00-15.00
12.00-15.00
22.00-24.00
22.00-24.00
75
75
(517)
(515)
30(207)
30(205)
30
40
WP310 A312 Gr. TP310
A240 Type 309S
P
PL
0.15
0.08
0.75
1.00
2.00
2.00
0.040
0.045
0.030
0.030
19.00-22.00
19.00-22.00
24.00-26.00
26.00-26.00
75
75
(517)
(515)
30(207)
30(205)
30
40
WP316 A312 Gr. TP316
A240 Type 316
P
PL
0.08
0.08
0.75
1.50
2.00
2.00
0.040
0.045
0.030
0.030
11.00-14.00
10.00-14.00
16.00-18.00
16.00-18.00
2.00-3.00
2.00-3.00
75
75
(517)
(515)
30(207)
30(205)
35
40
WP316H A312 Gr. TP316H
A240 Type 316H
P
PL
0.04-0.10
0.04-0.10
0.75
1.00
2.00
2.00
0.040
0.045
0.030
0.030
11.00-14.00
10.00-14.00
16.00-18.00
16.00-18.00
2.00-3.00
2.00-3.00
75
75
(517)
(515)
30(207)
30(205)
35
40
WP316L A312 Gr. TP316L
A240 Type 316L
P
PL
0.035
0.030
0.75
1.00
2.00
2.00
0.040
0.045
0.030
0.035
10.00-15.00
10.00-14.00
16.00-18.00
16.00-18.00
2.00-3.00
2.00-3.00
75
75
(517)
(515)
25(172)
25(170)
35
40
WP317L A312 TP317L
A240 Type 317L
P
PL
0.035
0.030
0.75
0.75
2.00
2.00
0.040
0.045
0.030
0.030
11.00-15.00
11.00-15.00

18.00-20.00
18.00-20.00

3.00-4.00
3.00-4.00
75
80
(515)
(550)
30(205)
30(240)
35
40
WP321 A312 Gr. TP321
A240 Type 321
P
PL
0.08
0.08
0.75
1.00
2.00
2.00
0.040
0.045
0.030
0.030
9.00-13.00
9.00-12.00
17300-19.00
17.00-19.00
5xC-0.60
5xC-0.60
70
65
(483)
(448)
30(207)
30(205)
35
40
WP321H A312 Gr. TP321H
A240 Type 321H
P
PL
0.04-0.10
0.04-0.10
0.75
1.00
2.00
2.00
0.040
0.045
0.030
0.030
9.00-13.00
9.00-12.00
17.00-20.00
17.00-19.00
4xC-0.60
4xC-0.70
75
75
(517)
(515)
30(207)
30(205)
35
40
WP347 A312 Gr. TP347
A240 Type 347
P
PL
0.08
0.08
0.75
1.00
2.00
2.00
0.040
0.045
0.030
0.035
9.00-13.00
9.00-13.00
17.00-20.00
17.00-19.00
75
75
(517)
(515)
30(207)
30(205)
35
40
WP347H A312 Gr. TP347H
A240 Type 347H
P
PL
0.04-0.10
0.08
0.75
1.00
2.00
2.00
0.040
0.045
0.030
0.030
9.00-13.00
9.00-13.00
17.00-20.00
17.00-19.00
75
75
(517)
(515)
30(207)
30(207)
35
40
WP S31254 A312 S31254
A240 S31254
P
PL
0.020 0.80 1.00 0.030 0.010 17.5-18.5 19.5-20.5 94 650 44(300) 35
A420 WPL6 A330 and A334 Gr. 6
A516 Gr. 60
P
PL
0.30
0.21-0.27
0.10 Min
0.13-0.33
0.29-1.06
0.60-1.25
0.048
0.035
0.058
0.040
60
60-84
(414)
(415-550)
35(241)
32(220)
30
25
WPL3 A333 and A334 Gr. 3
A203 Gr. 60
P
PL
0.19
0.17-0.20

0.18-0.37
0.13-0.32

0.31-0.64
0.70-0.80
0.050
0.035
0.050
0.040

3.18-3.82
3.18-3.82

65
65-85

(448)
(450-585)
35(241)
37(255)
30
23
WPL8 A333 and A334 Gr. 8
A203 Gr. A
P
PL
0.20
0.17
-
0.15-0.40
0.40-1.06
0.70
0.025
0.035
0.025
0.040
1.60-2.24
2.10-2.50
63
65-85
(435)
(450-585)
46(315)
37(255)
28
23
A815 S31803 A790 S31803
A240 S31803
P
PL
0.030 1.0 2.0 0.030 0.020 4.50-6.50 21.0-23.0 2.50-3.50 90 620 65(450) 25
S32750 A790 S32750
A240 S32750
P
PL
0.030 0.8 1.2 0.035 0.020 6.0-8.0 24.0-26.0 3.0-5.0 116 795 80(550) 15
S32760 A790 S32760
A240 S32760
P
PL
0.05
0.030
1.00 1.00 0.030 0.010 6.00-8.00 24.00-26.00 3.00-4.00 108
109-130
750
750-895
80(550) 25
A860 WPHY42 AP15L Gr. X42
A572 Gr. 42
P
PL
0.28 1.25 1.25 0.04 60 414 42(289) -
24
WPHY60 AP15L Gr. X65
A572 Gr. 60
P
PL
0.26 1.35 1.35 0.04 0.03 Min
-
75 517 60(413) -
18
WPHY62 AP15L Gr. X65
A572 Gr. 62
p
PL
0.26 1.40 0.04 0.04 77
80
530
550
65(448) -
17