High-Strength Alloy Bar & Tubes are widely used in oilfield tool manufacturing, automobile manufacturing, shipbuilding, turbines, heavy machine tools and other transmission parts and fasteners.
Kingdoo service features: multi-species, multi-standard, Small MOQ, timely delivery.
Standard: AISI, ASTM A29, ASME SA519, GB1591, GB3077 and client’s technical standards.
Similar Grade |
Chemical Content |
Mechanical properties |
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GB3077 |
ASTM A29 |
EN10083 |
G4105 |
C |
Mn |
Si |
Cr |
Mo |
Ni |
Y.S |
T.S |
Elongation |
Reduction of Area |
Charpy |
|
20Cr |
5120 |
Min |
0.18 |
0.50 |
0.17 |
0.70 |
-- |
-- |
540 |
835 |
10.00% |
40.00% |
47 |
||
Max |
0.24 |
0.80 |
0.37 |
1.00 |
-- |
-- |
-- |
-- |
-- |
-- |
|||||
20CrMo |
4118 |
SCN420 |
Min |
0.17 |
0.40 |
0.17 |
0.80 |
0.15 |
-- |
685 |
885 |
12.00% |
50.00% |
78 |
|
Max |
0.23 |
0.70 |
0.37 |
1.10 |
0.25 |
-- |
-- |
-- |
-- |
-- |
-- |
||||
42CrMo |
4140 |
42CrMo4 |
SCM440 |
Min |
0.38 |
0.50 |
0.17 |
0.90 |
0.15 |
-- |
930 |
1080 |
12.00% |
45.00% |
63 |
Max |
0.45 |
0.80 |
0.37 |
1.20 |
0.25 |
-- |
-- |
-- |
-- |
-- |
-- |
||||
20CrNiMo |
8620 |
SNCM420 |
Min |
0.17 |
0.60 |
0.17 |
0.40 |
0.20 |
0.35 |
785 |
980 |
9.00% |
40.00% |
47 |
|
Max |
0.23 |
0.95 |
0.37 |
0.70 |
0.30 |
0.75 |
-- |
-- |
-- |
-- |
-- |
||||
40CrNiMo |
42CrNiMo6 |
Min |
0.37 |
0.50 |
0.17 |
0.60 |
0.15 |
1.25 |
835 |
980 |
12.00% |
55.00% |
78 |
||
Max |
0.44 |
0.80 |
0.37 |
0.90 |
0.25 |
1.65 |
-- |
-- |
-- |
-- |
-- |
||||
20CrMnTi |
Min |
0.17 |
0.80 |
0.17 |
1.00 |
-- |
-- |
835 |
1080 |
10.00% |
45.00% |
55 |
|||
Max |
0.23 |
1.10 |
0.37 |
1.30 |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
||||
9Cr1Mo |
Min |
-- |
0.30 |
0.25 |
8.00 |
0.90 |
-- |
552 |
690 |
17.00% |
35.00% |
-- |
|||
Max |
0.15 |
0.60 |
1.00 |
10.00 |
1.10 |
-- |
-- |
-- |
-- |
-- |
-- |
||||
4340 |
36CrNiMo4 |
SNCM439 |
Min |
0.38 |
0.60 |
0.15 |
0.70 |
0.20 |
1.65 |
by custome requirment |
|||||
Max |
0.43 |
0.80 |
0.35 |
0.90 |
0.30 |
2.00 |
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