Monday 28 December 2009

Выбор типов генеральных грузов при моделировании их укладки в грузовые помещения судна

Предложена процедура выбора обощённых типов генеральных грузов и ввода их параметров при моделировании их укладки в грузовые помещения судна.

Моя статья в сборнике "Судовождение" №17, 2009.



Sunday 27 December 2009

Steel Pipe Indication

Pipe description
++++++++++++++++++++++++++++++
Pipes are described by nominal size (e.g. 125A), which refers to and approximately matches inside diameter in mm. Pipe wall thickness is described by the pipe schedule (e.g. Schedule-40 or Schedule-80).

Same A-size pipes in different schedules will have the same Outside Diameter (O.D.) but different wall thickness (Schedule-80 is thicker than Schedule-40).

Schedules 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160


JIS standard for steel
++++++++++++++++++++++++++++++
SUS 430 Stainless steel 18 Chrome
SUS 304 Stainless steel 18 Chrome & 8 Nickel


Example of steel pipe marking
++++++++++++++++++++++++++++++


JIS pipe categories
+++++++++++++++++++++++++++++++
SGP Steel Gas Piping - Carbon Steel Pipe for Ordinary Piping
STGP Steel Tube Piping General - Carbon Steel Pipe for pressure services
STS Steel Tube Special - Carbon Steel Pipe for high pressure services
STPT Steel Tube Piping Temperature - Carbon Steel Pipe for high temperature services
STPL Steel Tube Piping Low - Carbon Steel Pipe for low temperature services

Dimensions of Welded and Seamless Steel Pipe (ANSI/ASME B36.10M)
Nominal Pipe Size
Outside Diameter inch
Schedule 40
Schedule 80
Schedule 120
Schedule 160
inch
mm
inch
mm
inch
mm
inch
mm
1/8
0.405
0.068
1.7
0.095
2.4




1/4
0.540
0.088
2.2
0.119
3.0




3/8
0.675
0.091
2.3
0.126
3.2




1/2
0.840
0.109
2.8
0.147
3.7


0.188
4.8
3/4
1.050
0.113
2.9
0.154
3.9


0.219
5.6
1
1.315
0.133
3.4
0.179
4.5


0.250
6.4
1-1/4
1.660
0.140
3.6
0.191
4.9


0.250
6.4
1-1/2
1.900
0.145
3.7
0.200
5.1


0.281
7.1
2
2.375
0.154
3.9
0.218
5.5


0.344
8.7
2-1/2
2.875
0.203
5.2
0.276
7.0


0.375
9.5
3
3.500
0.216
5.5
0.300
7.6


0.438
11.1
3-1/2
4.000
0.226
5.7
0.318
8.1




4
4.500
0.237
6.0
0.337
8.6
0.438
11.1
0.531
13.5
5
5.563
0.258
6.6
0.375
9.5
0.500
12.7
0.625
15.9
6
6.625
0.280
7.1
0.432
11.0
0.562
14.3
0.719
18.3
8
8.625
0.322
8.2
0.500
12.7
0.719
18.3
0.906
23.0
10
10.750
0.365
9.3
0.594
15.1
0.844
21.4
1.125
28.6
12
12.750
0.406
10.3
0.688
17.5
1.000
25.4
1.312
33.3
14
14.000
0.438
11.1
0.750
19.1
1.094
27.8
1.406
35.7
16
16.000
0.500
12.7
0.844
21.4
1.219
31.0
1.594
40.5
18
18.000
0.562
14.3
0.938

1.375

1.781


JIS ASTM Carbon Steel Pipe Outside Diameter Comparison and Actual Wall Thickness by Schedule Number
Nom. Size
Actual OD mm
Actual Wall Thickness by Schedule Numbers mm.
A
B
JIS
ASTM
10
20
30
40
60
80
100
120
140
160
6
1/8
10.5
10.3



1.7
2.2
2.4




8
1/4
13.8
13.7



2.2
2.4
3.0




10
3/8
17.3
17.1



2.3
2.8
3.2




15
1/2
21.7
21.3



2.8
3.2
3.7



4.7
20
3/4
27.2
26.7



2.9
3.4
3.9



5.5
25
1
34.0
33.4



3.4
3.9
4.5



6.4
32
1-1/4
42.7
42.2



3.6
4.5
4.9



6.4
40
1-1/2
48.6
48.3



3.7
4.5
5.1



7.1
50
2
60.5
60.3

3.2

3.9
4.9
5.5



8.7
65
2-1/2
76.3
73.0

4.5

5.2
6.0
7.0



9.5
80
3
89.1
88.9

4.5

5.5
6.6
7.6



11.1
90
3-1/2
101.6
101.6

4.5

5.7
7.0
8.1



12.7
100
4
114.3
114.3

4.9

6.0
7.1
8.6

11.1

13.5
125
5
139.8
141.3

5.1

6.6
8.1
9.5

12.7

15.9
150
6
165.2
168.3

5.5

7.1
9.3
11.0

14.3

18.2
200
8
216.3
219.1

6.4
7.0
8.2
10.3
12.7
15.1
18.2
20.6
23.0
250
10
267.4
273.1

6.4
7.8
9.3
12.7
15.1
18.2
21.4
25.4
28.6
300
12
318.5
323.9

6.4
8.4
10.3
14.3
17.4
21.4
25.4
28.6
. 33.3
350
14
355.6
355.6
6.4
7.9
9.5
11.1
15.1
19.0
23.8
27.8
31.8
35.7
400
16
406.4
406.4
6.4
7.9
9.5
12.7
16.7
21.4
26.2
30.9
36.5
40.5
450
18
457.2
457.2
6.4
7.9
11.1
14.3
19.0
23.8
29.4
34.9
39.7
45.2

Symbol
Abbreviation
SGP
S: Steel G: Gas
P: Piping
SGPW
S: Steel G: Gas
P: Piping W: Water
STB
S: Steel T: Tube
B: Boiler
STBA
S: Steel T: Tube
B: Boiler A: Alloy
STBL
S: Steel T: Tube
B: Boiler L: Low Temperature
STH
S: Steel T: Tube
H: High Pressure
STK
S: Steel T: Tube
K:
STKM
S: Steel T: Tube
K: M: Machine
STKS
S: Steel T: Tube
K: S: Special
STKR
S: Steel T: Tube
K: R: Rectangular
STL
S: Steel T: Tube
L: Locomotive
STM
S: Steel T: Tube
M: Mining

C: Core or Casing R: Boring Rod
STO
S: Steel T: Tube
O: Oil
STPA
S: Steel T: Tube
P: Piping A: Alloy
STPG
S: Steel T: Tube
P: Piping G: General
STPL
S: Steel T: Tube
P: Piping L: Low
STPT
S: Steel T: Tube
P: Piping T: Temperature
STPY
S: Steel T: Tube
P: Piping Y:
STS
S: Steel T: Tube
S: Special
SUS-TP
S: Steel U: Use
S: Stainless T: Tube P: Piping
SUS-TB
S: Steel U: Use
S: Stainless T: Tube B: Boiler


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