JIS G3444 STK540 steel square pipes Mechanical Properties
JIS G3444 STK540 square steel pipes/tubes Chemical Composition
Symbol of class |
C |
Si |
Mn |
P |
S |
|
STK540 |
0.23 max |
0.55 max |
1.50 max |
0.040 max |
0.040 max |
JIS G3444 STK540 steel square pipes/tubes Mechanical Properties
Mechanical properties |
Tensile strength N/mm2 |
Yield point or proof stress N/mm2 |
Elongation % |
Bendability |
Flattening |
Tensile strength in welded zone N/mm2 |
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|
No.11 and No.12 test pieces |
No.5 test piece |
Bend angle |
Inside radius (D: outside diameter of tube) |
Distance between flattening plates (H) (D: outside diameter of tube) |
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Longitudinal direction |
Transverse direction |
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Method of manufacture |
Seamless, butt-welding, electric resistance welding and arc welding process |
Seamless, butt-welding, electric resistance welding process |
Seamless, butt-welding, electric resistance welding process |
Arc welding process |
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Outside diameter |
Full range |
Full range |
Over 40 mm |
50 mm or under |
Full range |
Over 350 mm |
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STK540 |
540 min |
390 min |
20 min |
16 min |
90° 6D |
7/8D |
540 min |
|
We could manufacture any size between the above data,for example 120*200*5MM, 250*400*8MM,300*800*20MM,600*600*16MM.
JIS G3444 STK540 square steel pipes applications:
construction structure, machinery making, container, hall structure, offshore oil field, sea trestle, motorcar cassis, airport structure, shipbuilding, automobile axle pipe and so on.
Katalor Enterprises, as a JIS G3444 STK540 square steel pipes supplier in China , we can supply JIS G3444 STK540 square steel pipes stock and we also can provide JIS G3444 STK540 square steel pipes machining service . So if you need JIS G3444 STK540 square steel pipes price , you can contact katalor !
