BS 3059 Part2 Pipes

BS-3059-Part2-Pipes
Standard:
 British Standard BS 3059:Part 2 Steel boiler and superheater tubes

Uses: Specification for carbon,alloy and austenitic stainless steel tubes with specified elevated temperature properties.

Steel type and Type number:
Steel type
Type number
Carbon
360
Carbon manganese
440
0.3%Molybdenum
243
1%Chromium,0.5%Molybdenum
620-460
2.25%Chromium, 1%Molybdenum(normalized and tempered)
622-490
9%Chromium,1%Molybdenum(annealed)
629-470
9%Chromium,1%Molybdenum(normalized and tempered)
629-590
12%Chromium,1%Molybdenum,vanadium
762

 

Chemical Composition
Grade
C
Si
Mn
P
S
Cr
Mo
Ni
Other
360
≤0.17
0.10~0.35
0.40~0.8
≤0.035
≤0.035
-
-
-
-
440
0.12~0.18
0.10~0.35
0.90~1.2
≤0.035
≤0.035
-
-
-
-
243
0.12~0.2
0.10~0.35
0.40~0.8
≤0.035
≤0.035
-
0.25~0.35
-
Al≤0.012
620-460
0.10~0.15
0.10~0.35
0.40~0.7
≤0.030
≤0.030
0.70~1.10
0.45~0.65
-
Al≤0.02
622-490
0.08~0.15
≤0.50
0.40~0.7
≤0.030
≤0.030
2.00~2.50
0.90~1.2
-
Al≤0.02
629-470
≤0.15
0.25~1
0.3~0.6
≤0.030
≤0.030
8~10
0.9~1.1
-
Al≤0.02
629-590
762
0.17~0.23
≤0.50
≤1.00
≤0.030
≤0.030
10.00~12.5
0.80~1.2
0.30~0.8
V 0.25~0.35

 

Mechanical Properties:
Grade
Tensile Strength (MPa)
Yield Strength (Mpa Min)
Elongation (% Min)
Flatten Coefficient
360
360~500
235
24
0.1
440
440~580
245
21
0.07
243
480~630
275
22
0.07
620~460
460~610
180
22
0.07
622~490
490~640
275
20
0.07
629~470
470~620
185
20
0.07
629~590
590~740
400
18
0.07
762
720~870
470
15
0.08