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Guangzhou Kingmetal Steel Industry Co., Ltd.

Steel 20 Ere Welded Steel Tube, GOST 8734-78 Steel 20 Welded Steel Tube, GOST8731 Welded Steel Pipe manufacturer / supplier in China, offering GOST 8734 Steel 10# Steel 20# ERW Welded Steel Tube, 3PE Anti-Corrosion Carbon Steel Fitting Elbow, 90 Deg Lr Bw Elbow A234 Wpb Sch80 and so on.

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Supplier Homepage Product Seamless carbon steel pipes GOST 8734 Steel 10# Steel 20# ERW Welded Steel Tube

GOST 8734 Steel 10# Steel 20# ERW Welded Steel Tube

FOB Price: US $550 / Ton
Min. Order: 10 Tons
Min. Order FOB Price
10 Tons US $550/ Ton
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Port: Tianjin, China
Production Capacity: 3000 Tons/Month
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: KM-170315
  • Technique: ERW
  • Surface Treatment: Black
  • Section Shape: Round
  • Thickness: 1.65mm~18mm
  • Materials: 10#,20#,Q195,Q235,Q345,Gr.a,Gr.B etc.
  • Ends: Plain Ends, Bevel Ends
  • Transport Package: in Bundle or Customer′s Request
  • Origin: China
  • Type: Welded
  • Material: Carbon Steel
  • Usage: Construction & Decoration
  • Size: 10mm~610mm
  • Standards: GOST8731,GOST 8732,GOST 8734-78,GOST 8733-74,GOST
  • Surface: Black Painting, Varnish Coating, Oils, etc
  • Trademark: Kingmetal
  • Specification: 10mm~610mm
  • HS Code: 73063090
Product Description
GOST 8734 Steel 10# steel 20# ERW welded steel tube

OD: 10mm-610mm
W. T.: 1.65-18mm
Standard: GOST 8734-78,GOST8731,GOST 8732,GOST 8733-74,GOST 550-75,et
Material: 10#,20#,Q195,Q235,Q345,Gr.A,Gr.B etc.

Dimensions of pipes and tolerances according to GOST 8732-78.
Technical requirements according to GOST 8731-74.
Length from 4 up to 11.7 m depending on diameter and wall thickness.
Groups of metrics of quality:
BВ - with rate setting of chemical composition for killed steel (grades according to GOST 1050-88, GOST 4543-71, GOST 19281-89);
V - with rate setting of mechanical properties and chemical composition;
G - with rate setting of chemical composition and control of mechanical properties for heat-treated samples. Mechanical properties are according to steel standards.
 
Deminsion
OD, mmWT, mmOD, mmWT, mmOD, mmWT, mm
32 - 33,72,8 - 4,089 - 953,5 - 241465 - 38
38 - 42,43 - 4,5102 - 1084 - 281525 - 40
45 - 543,5 - 6,01144,5 - 281595 - 42
57 - 683,5 - 141215 - 30168 - 1946 - 45
703,5 - 161275 - 32203 - 2198 - 45
73 - 763,5 - 201335 - 35  
82,5 - 833,5 - 221405 - 36  
 
Mechanical properties
Steel GradeTS, N/mm2(min)YS,N/mm2 (min)E, % (min)
1035321624
2041224521
3551029417
4558832314
10Mn242126521
20Cr431-16
40Cr657-9
30CrMnSi686-11
15CrMo43122521
30CrMn58839213
 
Chemical composition (%, max)
Steel GradeCSiMnCrNiMoSPCuN
100,07-0,140,17-0,370,35-0,650,150,3-----
200,17-0,240,17-0,370,35-0,650,250,25 

  
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