JIS G3444 STK500 steel square pipes application
JIS G3444 STK500 steel square pipes/tubes Chemical Composition
Symbol of class |
C |
Si |
Mn |
P |
S |
|
STK500 |
0.24 max |
0.35 max |
0.30 to 1.30 |
0.040 max |
0.040 max |
JIS G3444 STK500 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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STK500 |
500 min |
355 min |
15 min |
10 min |
90° 8D |
7/8D |
500 min |
|
JIS G3444 STK500 steel square pipes packing:
with plastic cap to protect both ends
plastic bag wrapped outside the pipe
bundles to be covered by polythene & strapped securely
JIS G3444 STK500 steel square pipes surface treatment:
Galvanized
Black Painted
With Oil
Bared or as per customers' requirement
JIS G3444 STK500 steel square pipes specification lists, we shanghai KATALOR can produce from 20-500 mm* 4-16 mm. For the 35# rectangle hollow section specification lists,we shanghai KATALOR can produce from 30-200*20-120*1.5-8mm. For the length, we can offer as your requirements.
