ASTM 519-89/ASME SA519 Gr.1010,1015,1020,4140,5120
Seamless Carbon steel Mechanical tube
Application
Machinery, Automobiles, Bicycles,Furniture, Appliances and Other machine parts.
Size Range
O.D 12.7-322.8mm
W.T 1.2-40mm
Length: 3-12M or according to your requirements
|
Standard |
Grade |
Chemical Composition% |
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|
C |
Mn |
P |
S |
Si |
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|
ASTM 519 |
1010 |
≤0.12 |
≤0.60 |
≤0.04 |
≤0.04 |
≤0.35 |
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|
1015 |
≤0.20 |
≤0.60 |
≤0.04 |
≤0.04 |
≤0.35 |
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|
1020 |
≤0.25 |
0.3~0.9 |
≤0.04 |
≤0.04 |
≤0.35 |
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|
4140 |
0.38~0.43 |
0.60~085 |
≤0.03 |
≤0.03 |
0.15~0.35 |
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|
5120 |
0.18~0.23 |
0.60~085 |
≤0.03 |
≤0.03 |
0.15~0.35 |
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|
Standard |
Grade |
Mechanical Properties |
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|
Tensile Strength(Mpa) |
Yield Strength(Mpa) |
Elongation(%) |
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ASTM 519 |
1010 |
≥290 |
- |
≥35 |
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1015 |
≥340 |
≥175 |
≥35 |
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1020 |
≥370 |
≥215 |
≥30 |
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4140 |
≥383 |
≥544 |
≥44 |
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5120 |
≥455 |
≥365 |
≥32 |
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Delivery Condition
|
Designation |
Symbol |
Description |
|
Cold finished (hard) |
BK |
Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation. |
|
Cold finished (soft) |
BKW |
The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding). |
|
Cold finished and stress-relieved |
BKS |
Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
|
Annealed |
GBK |
The last cold forming process is followed by annealing in a controlled atmosphere. |
|
Normalized |
NBK |
The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
Chemical Composition,Mechanical Properties,Visual appearance and dimensions Test,NDT,Grain Size Test.
Oil-dip,varnish,Shot Blasting
