Recently, API announced two changes to the Pipe and Steel industry that will become effective July 1, 2000. The first alters the formula we have all used for many years to calculate weight. Instead of using 10.68 as a multiplier, the new formula uses 10.69.

                  
Nominal   Outside
Pipe Sz Diameter
5
10
20
30
40
STD.
60
80
XH
100
120
140
160
XXH
.035
.14		 .049
.19		     .068
0.24		 .068
0.24		   .095
.31		 .095
.31		          
.049
.26		 .065
.33		     .088
.43		 .088
.43		   .119
.54		 .119
.54		          
.049
.33		 .065
.42		     .091
.57		 .091
.57		   .126
.74		 .126
.74		          
.065
.54		 .083
.67		     .109
.85		 .109
.85		   .147
1.09		 .147
1.09		       .187
1.31		 .294
1.72
.065
.68		 .083
.86		     .113
1.13		 .113
1.13		   .154
1.48		 .154
1.48		       .218
1.94		 .308
2.44
.065
.87		 .109
1.41		     .133
1.68		 .133
1.68		   .179
2.17		 .179
2.17		       .250
2.85		 .358
3.66
.065
1.11		 .109
1.81		     .140
2.27		 .140
2.27		   .191
3.00		 .191
3.00		       .250
3.77		 .382
5.22
.065
1.28		 .109
2.09		     .145
2.72		 .145
2.72		   .200
3.63		 .200
3.63		       .281
4.86		 .400
6.41
.065
1.61		 .109
2.64		     .154
3.66		 .154
3.66		   .218
5.03		 .218
5.03		       .343
7.45		 .436
9.04
.083
2.48		 .120
3.53		     .203
5.80		 .203
5.80		   .276
7.67		 .276
7.67		       .375
10.02		 .552
13.71
.083
3.03		 .120
4.34		     .216
7.58		 .216
7.58		   .300
10.26		 .300
10.26		       .437
14.31		 .600
18.60
.083
3.48		 .120
4.98		     .226
9.12		 .226
9.12		   .318
12.52		 .318
12.52		         .636
22.87
.083
3.92		 .120
5.62		     .237
10.80		 .237
10.80		 .281
12.67		 .337
15.00		 .337
15.00		   .438
19.02		   .531
22.53		 .674
27.57
          .247
12.55		     .355
17.63		         .710
32.56
.109
6.36		 .134
7.78		     .258
14.63		 .258
14.63		   .375
20.80		 .375
20.80		   .500
27.06		   .625
32.99		 .750
38.59
.109
7.59		 .134
9.30		     .280
18.99		 .280
18.99		   .432
28.60		 .432
28.60		   .562
36.43		   .719
45.39		 .864
53.21
          .301
23.57		     .500
38.08		         .875
63.14
.109
9.92		 .148
13.41		 .250
22.38		 .277
24.72		 .322
28.58		 .322
28.58		 .406
35.67		 .500
43.43		 .500
43.43		 .593
50.91		 .719
60.77		 .812
67.82		 .906
74.76		 .875
72.49
          .342
33.94		     .500
48.77		          
Inches           10         10.750
Lb per Foot		 .134
15.21		 .165
18.67		 .250
28.06		 .307
34.27		 .365
40.52		 .365
40.52		 .500
54.79		 .593
64.39		 .500
54.79		 .719
77.10		 .843
89.28		 1.000
104.23		 1.125
115.75		  
Inches           11         11.750
Lb per Foot		           .375
45.60		     .500
60.13		          
Inches           12         12.750
Lb per Foot		 .165
22.20		 .180
24.19		 .250
33.41		 .330
43.81		 .406
53.57		 .375
49.61		 .562
73.22		 .688
88.71		 .500
65.48		 .843
107.30		 1.000
125.61		 1.125
139.81		 1.312
160.42		  
Inches           14         14.000
Lb per Foot		   .250
36.75		 .312
45.65		 .375
54.62		 .438
63.50		 .375
54.62		 .593
84.99		 .750
106.23		 .500
72.16		 .938
130.98		 1.093
150.81		 1.250
170.37		 1.406
189.29		  
Inches           16         16.000
Lb per Foot		   .250
42.09		 .312
52.32		 .375
62.64		 .500
82.85		 .375
62.64		 .656
107.60		 .843
139.59		 .500
82.85		 1.031
164.98		 1.218
192.47		 1.437
223.71		 1.593
245.34		  
Inches           18         18.000
Lb per Foot		   .250
47.44		 .312
58.99		 .438
82.23		 .562
104.76		 .375
70.65		 .750
138.30		 .938
171.08		 .500
93.54		 1.156
208.15		 1.375
244.37		 1.562
274.48		 1.781
308.79		  
Inches           20         20.000
Lb per Foot		   .250
52.78		 .375
78.67		 .500
104.23		 .593
123.02		 .375
78.67		 .812
166.56		 1.031
209.06		 .500
104.23		 1.280
256.15		 1.500
296.65		 1.750
341.41		 1.968
379.36		  
Inches           22         22.000
Lb per Foot		   .250
58.13		 .375
86.69		 .500
114.92		   .375
86.69		 .875
197.60		 1.125
251.05		 .500
114.92		 1.375
303.16		 1.625
353.94		 1.875
403.38		 2.125
451.49		  
Inches           24         24.000
Lb per Foot		   .250
63.47		 .375
94.71		 .562
140.81		 .688
171.45		 .375
94.71		 .968
238.33		 1.218
296.63		 .500
125.61		 1.531
367.74		 1.812
429.79		 2.062
483.57		 2.343
542.44		  
Inches           26         26.000
Lb per Foot		   .312
85.68		 .500
136.30		     .375
102.72		     .500
136.30		          
Inches           28         28.000
Lb per Foot		   .312
92.35		 .500
146.99		 .625
182.90		   .375
110.74		     .500
146.99		          
Inches           30         30.000
Lb per Foot		   .312
99.02		 .500
157.68		 .625
196.26		   .375
118.76		     .500
157.68		          
Inches           32         32.000
Lb per Foot		   .312
105.69		 .500
168.37		 .625
209.62		 .688
230.29		 .375
126.78		     .500
168.37		          
Inches           34         34.000
Lb per Foot		   .344
123.77		 .500
179.06		 .625
222.99		 .688
245.00		 .375
134.79		     .500
179.06		          
Inches           36         36.000
Lb per Foot		   .312
119.03		 .500
189.75		 .625
236.35		 .750
282.62		 .375
142.81		     .500
189.75		          
Inches           42         42.000
Lb per Foot		           .375
166.86		     .500
221.82		          
Inches           48         48.000
Lb per Foot		           .375
190.92		     .500
253.89		          
Inches           54         54.000
Lb per Foot		           .375
214.97		     .500
285.96		          
Inches           60         60.000
Lb per Foot		           .375
239.02		     .500
318.03		          


      The second change announced by API revised Specification 5L. The Specification has been divided into two different categories, PSL-1 and PSL-2. This is perhaps one of the most significant changes in the Industry in recent years because it transforms our entire manufacturing, marketing, and end-use application. Although this was directed primarily at high-pressure gas transmission and volatile liquid applications, it is bound to have an impact on every aspect of our Industry.


 PARAMETER  API 5L 41ST ED  API 5L 42ND ED PSL-1  API 5L 42ND ED PSL-2
 Grades  A25 - X80  A25 - X70  B - X80
 Sizes  0.405 - 80  0.405 - 80  4-1/2 - 80
 Types of Ends  Plain, Threaded,
 Belled, and special
 coupling		  Plain, Threaded,
 Belled, and special
 coupling		  Plain
 Seam Welding  All methods, CW
 limited to A25		  All methods, CW
 limited to A25		  All methods except
 CW and Laser
 Electric Weld -
 Welder Frequency		  No Minimum  No Minimum  100 kHz Minimum
 Heat Treatment of Electric Welds   >X42 Required   >X42 Required  B - X80 Required
 Chemistry: Max C for Seamless  B - 0.27% (Heat)
 X42 - 0.29% (Heat)
 X52 - 0.31% (Heat)
 X60 - 0.26% (Heat)		  B>0.28% (Product)  0.24% (Product)
 Chemistry: Max C for Welded  B - 0.26% (Heat)
 X42 - 0.28% (Heat)
 X52 - 0.30% (Heat)
 X60 - 0.26% (Heat)		  B>0.26% (Product)  0.22% (Product)
 Chemistry: Max P  >A - 0.030% (Heat)  >A-0.030% (Product)  0.025% (product)
 Chemistry: Max S  >A-0.030% (Heat)  0.030% (Product)  0.015% (Product)
 Carbon Equivalent  SR18 Only  SR18 Only  Maximum for each Grade
 Maximum Yield Strength  None  None  Maximum for each Grade
 Maximum UTS  None  None  Maximum for each Grade
 Fracture Toughness  SR5 Only  SR5 or SR19 Only  Required for all Grades
 Nondestructive
 Inspection: Seamless		  SR4 Only  SR4 Only  SR4 Mandatory
 Repair by Welding of Pipe
 Body, Plate, and Skelp		  Permitted  Permitted  Prohibited
 Repair by Welding of Weld Seam 
 without Filler Metal		  Permitted  Permitted  Prohibited
 Certification  Certificates when
 Specified - SR15		  Certificates when
 Specified - SR15		  Certificates (SR15.1)
 Mandatory
 Traceability  Traceable only until all tests are passed, Unless SR15 is specified  Traceable only until all tests are passed, Unless SR15 is specified  Traceable after completion of tests (SR15.2) mandatory