Product |
ASTM A519 4135 4140 alloy mechanical seamless steel pipe for Machinery Industry |
Standard |
ASTM A519 |
Material |
4140 4135 |
Surface |
Black paint, varnish, oil, galvanized |
Pipe Length |
5.8 m to 12 m, can be customized according to the length requirements |
Pipe Ends |
Plain Ends, Beveled Ends |
End Protector |
1. Plastic caps (small OD) 2. Iron protector (large OD) |
Application |
Fluid pipe, oil pipe, gas pipe, structure pipe, boiler tubes |
Test |
Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size |
Productivity |
50000 tons per month |
Min Order |
20 ton |
Remark |
Special design available according to requirement |
4140 chemical composition:
C |
Si |
Mn |
P |
S |
Cr |
Mo |
0.38 - 0.45 |
max 0.4 |
0.6 - 0.9 |
max 0.025 |
max 0.035 |
0.9 - 1.2 |
0.15 - 0.3 |
4135 chemical composition:
C |
Si |
Mn |
P |
S |
Cr |
Mo |
0.3 - 0.37 |
max 0.4 |
0.6 - 0.9 |
max 0.025 |
max 0.035 |
0.9 - 1.2 |
0.15 - 0.3 |
Manufacturing:
Packing: