Thick Wall Carbon Steel Pipe Rectangular Tube Heavy Wall Steel Tube Stk290 Carbon Steel Tubes

1. STANDARD:
GB/T3094-2000, GB/T6728-2002, ASTM A500, JIS G 3466, DIN EN 10210, GB/T178-2005
2. MATERIAL:
Q195, Q215, Q235, Q275, Q345, 20#, 45#, Stainless steel, Seamless steel, Alloy steel.
3. SURFACE:
Bared, Galvanized, Oiled, Color Paint, 3PE; Or Other Anti-corrosive Treatment.
4. TECHINQUE:
Hot rolled, Cold rolled, ERW, High-frequency welded.
5. APPLICATION:
(1).Machinery manufacture: glass machinery, agricultural machinery, textile machinery, papermaking machinery, food machinery, electrical equipment, sanitation equipment.
(2).Roads and Bridges: railway, aviation, expressway, overpass, road fence, traffic signs.
(3).Construction engineering: steel structure construction, sports venue, three-dimensional garage, exhibition hall.
(4).Decoration: wrought iron doors and windows, outdoor advertising, pavilion and vestibule, glass curtain wall.
(5).Transportation: automobile manufacture, ship manufacture, container, tricycle, tower crane.
6.SUFACEALLOWEDDEVIATION:
AssessmentCriteria
FirstGrade
SecondGrade
Wallthickness/t
4mm≤t≤10mm±8%t
4mm≤t≤10mm±8%t
10mm≤t≤22mm±6%t
10mm≤t≤22mm±6%t
Suitableforflatparts
Suitableforflatparts
RightAngle
90°±1.0°
90°±1.5°
Cornerradiusofcirculararc
t≤6mm(1.5-2.5)t
6mm≤t≤10mm(2-3)t
T>10mm(2.5-3.5)t
Concaveandconvexdegree
≤5%sidelength
≤6%sidelength
Bendingdegree
≤1.5mm/m,totalbendingdegree
≤0.15%specifiedlength
≤2mm/m,totalbendingdegree
≤0.2%specifiedlength
Distortiondegree
2mm+0.5mm/m
-
Scaleaccuracy
Ordinaryprecision0-+50mm
Ordinaryprecision0-+70mm
Finescale0-+5mm
Finescale0-+15mm
Cuttingquality
100mm≤sidelength≤300mm
100mm≤sidelength≤300mm
Cuttingslope≤3mm
Cuttingslope≤4mm
300mm<sidelength≤500mm
300mm<sidelength≤550mm
Cuttingslope≤3mm
Cuttingslope≤6mm
Endwithoutcuttingburr
Endwithfewcuttingburr
7.MECHANICALPROPERTY:
YieldStrengthGrade
Wallthickness
(mm)
Yieldstrength
(Mpa)
Tensilestrength
(Mpa)
Elongation%
Impactwork
(J)
235
4-12>12-22
≥235
≥375
≥23
≥27
345
4-12>12-22
≥345
≥470
≥21
≥27
390
4-12>12-22
≥390
≥490
≥19
≥27
8.What advantage do we have?Our factory established in 1997, we have 16 years experience in this area.We engaged in research square and rectangular steel tube at the beginning of company established, now our technology is far ahead.We have a leading international, domestic origination of production units.We have passed the standards of ASTM A500, JIS G 3466, DIN EN10210, GB/T178-2005, GB/T 3094-2000 and GB/T6728-2002.Our products in different sizes, and different thickness (1.0mm-32mm), can satisfy your desire a station buy need.Perfect after-sale service to solve your worries.FAQ
How to contact me?
Email: 554717325(at)qq.comSkype: sdxdcathy
Mobile:18853157756
Wechat:554717325
QQ:554717325