ASTM A519（1020, 1045, 4130, 4140 ) Structural Steel Pipe can be supplied by katalor. katalor has huge advantage on exporting ASTM A519（1020, 1045, 4130, 4140) Structural Steel Pipe . in the decade years, we iASTM A519（1020, 1045, 4130, 4140) Structural Steel Pipe .ASTM A519（1020, 1045, 4130, 4140 Structural Steel Pipe can be supplied by katalor. katalor has huge advantage on exporting ASTM A519（1020, 1045, 4130, 4140 Structural Steel Pipe . in the decade years, we improve our service and quality all the way. ASTM A519（1020, 1045, 4130, 4140 ) Structural Steel Pipe is the pipe which has widely uses.
The application of ASTM A519（1020, 1045, 4130, 4140 ) Structural Steel Pipe:
ASTM A519（1020, 1045, 4130, 4140 Structural Steel Pipe can be applied to Boiler Pipe, Machinery Industry, Mining, Construction & Decoration, Mechanical Service.
ASTM A519（1020, 1045, 4130, 4140 ) Structural Steel Pipe Chemical Composition：
Grade |
C |
Mn |
P≤ |
S≤ |
Si |
Cr |
Mo |
|
1020 |
0.18-0.23 |
0.30-0.60 |
0.040 |
0.050 |
- |
- |
- |
|
1045 |
0.43-0.50 |
0.60-0.90 |
0.040 |
0.050 |
|
|
|
|
4130 |
0.28-0.33 |
0.40-0.60 |
0.040 |
0.040 |
0.15-0.35 |
0.80-1.10 |
0.15-0.25 |
|
4140 |
0.38-0.43 |
0.75-1.00 |
0.040 |
0.040 |
0.15-0.35 |
0.80-1.10 |
0.15-0.25 |
ASTM A519（1020, 1045, 4130, 4140) Structural Steel Pipe Mechanical Properties：
Grade |
Condition |
Ultimate Strength |
Yield Strength |
Elongation |
Rockwell Hardness |
||
|
Ksi |
Mpa |
Ksi |
Mpa |
% |
B scale |
||
|
1020 |
HR |
50 |
345 |
32 |
221 |
25 |
55 |
|
CW |
70 |
483 |
60 |
414 |
5 |
75 |
|
|
SR |
65 |
448 |
50 |
345 |
10 |
72 |
|
|
A |
48 |
331 |
28 |
193 |
30 |
50 |
|
|
N |
55 |
379 |
34 |
234 |
22 |
60 |
|
|
1045 |
HR |
75 |
517 |
45 |
310 |
15 |
80 |
|
CW |
90 |
621 |
80 |
552 |
5 |
90 |
|
|
SR |
80 |
552 |
70 |
483 |
8 |
85 |
|
|
A |
65 |
448 |
35 |
241 |
20 |
72 |
|
|
N |
75 |
517 |
48 |
331 |
15 |
80 |
|
|
4130 |
HR |
90 |
621 |
70 |
483 |
20 |
89 |
|
SR |
105 |
724 |
85 |
586 |
10 |
95 |
|
|
A |
75 |
517 |
55 |
379 |
30 |
81 |
|
|
N |
90 |
621 |
60 |
414 |
20 |
89 |
|
|
4140 |
HR |
120 |
855 |
90 |
310 |
15 |
100 |
|
SR |
120 |
855 |
100 |
689 |
10 |
100 |
|
|
A |
80 |
552 |
60 |
414 |
25 |
85 |
|
|
N |
120 |
855 |
90 |
621 |
20 |
100 |
|
ASTM A519（1020, 1045, 4130, 4140) Structural Steel Pipe’s buyers from us give us much good rated. They say that katalor is the best seller of ASTM A519（1020, 1045, 4130, 4140) Structural Steel Pipe they have ever seen in china, and they will buy ASTM A519（1020, 1045, 4130, 4140) Structural Steel Pipe form katalor again. So, please contact us if you want to realize katalor!
