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Home / Products / Structural Steel Pipe / Round Seamless Hot Formed Structural Steel Pipe 10 , 20 , 35 , 45 , 10Mn2 , 15Cr , 20Cr
Quality Round Seamless Hot Formed Structural Steel Pipe 10 , 20 , 35 , 45 , 10Mn2 , 15Cr , 20Cr factory
Quality Round Seamless Hot Formed Structural Steel Pipe 10 , 20 , 35 , 45 , 10Mn2 , 15Cr , 20Cr factory
Quality Round Seamless Hot Formed Structural Steel Pipe 10 , 20 , 35 , 45 , 10Mn2 , 15Cr , 20Cr factory
Quality Round Seamless Hot Formed Structural Steel Pipe 10 , 20 , 35 , 45 , 10Mn2 , 15Cr , 20Cr factory
Quality Round Seamless Hot Formed Structural Steel Pipe 10 , 20 , 35 , 45 , 10Mn2 , 15Cr , 20Cr factory

Round Seamless Hot Formed Structural Steel Pipe 10 , 20 , 35 , 45 , 10Mn2 , 15Cr , 20Cr

Basic Properties
Place of Origin: China
Brand Name: Torich
Certification: GB/T 19001-2008 , ISO 9001:2008 , TS16949
Model Number: GOST 8732-78
Trading Properties
Minimum Order Quantity: 5MT
Price: USD600-900
Supply Ability: 7000MT/Month
Tags

cold formed steel tube

structural steel square tubing

structural steel tubing
Product Summary
GOST 8732-78 10 , 20 , 35 , 45 , Seamless Hot-Formed Steel Pipes , Structural Steel Pipe, Structural Steel Tube GOST 8732-78. Seamless Hot-Formed Steel Pipes Outside Diameter: 32 – 219 mm (32; 33,7; 38; 42; 42,4; 45; 48,3; 50; 51; 54; 57; 60; 60.3*; 63,5; 68; 70; 73; 76; 82,5*; 83; 89; 95; 102; 108; ...

Product Details

Highlight:

structural steel tubing

,

structural steel square tubing
Dimension:: 32-219mm*2.8-46mm*4000-11700mm
Steel Grade:: 10 , 20 , 35 , 45 , 10Mn2 , 15Cr , 20Cr
Product Name:: Structural Steel Pipe
Section Shape:: Round
Product Description

GOST 8732-78 10 , 20 , 35 , 45 , Seamless Hot-Formed Steel Pipes ,  Structural Steel Pipe, Structural Steel Tube

 

GOST 8732-78. Seamless Hot-Formed Steel Pipes

 
Outside Diameter: 32 – 219 mm 
(32; 33,7; 38; 42; 42,4; 45; 48,3; 50; 51; 54; 57; 60; 60.3*; 63,5; 68; 70; 73; 76; 82,5*; 83; 89; 95; 102; 108; 114; 121; 127; 133; 140; 146; 152; 159; 168; 178*; 180; 194; 203; 219)
 

Wall Thickness: 2.8 – 46 mm 
(2,8; 3; 3,2*; 3,5; 4; 4,5; 5; 5,5; 6; 6,5; 7; 7,5; 8; 8,5; 9; 9,5; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 22; 24; 25; 26; 28; 30; 32; 34; 35; 36; 38; 40; 42; 45) . 
 

Tolerances: 
OD: 
D 32 – 50 mm: ± 0.5 mm 
D 51 – 219 mm: ± 1%
WT: 
S 2,8 – 15 mm: + 12,5% – 15% 
S 16 – 30 mm: ± 12,5% 
S 32 – 45 mm: + 10% – 12,5%
Notes: 

  1. Steel grades: 10, 20, 35, 45, 10Mn2, 15Cr, 20Cr, 40Cr, 30CrMnSi, 15CrMo, 30CrM acc. to GOST 1050-88, GOST 4543-71, GOST 19281-89.
  2. Dimension marked by "*", as well as intermediate dimensions are produced subject to agreement.
  3. Dimensions of pipes and tolerances according to GOST 8732-78.
  4. Technical requirements according to GOST 8731-74.
  5. Length from 4 up to 11.7 m depending on diameter and wall thickness.
  6. 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.

 

Sizes
OD, mm
 WT, mm
OD, mm
 WT, mm
OD, mm
 WT, mm
32 – 33,7
 2,8 – 4,0
89 – 95
 3,5 – 24
146
 5 – 38
38 – 42,4
 3 – 4,5
102 – 108
 4 – 28
152
 5 – 40
45 – 54
 3,5 – 6,0
114
 4,5 – 28
159
 5 – 42
57 – 68
 3,5 – 14
121
 5 – 30
168 – 194
 6 – 45
70
 3,5 – 16
127
 5 – 32
203 – 219
 8 – 45
73 – 76
 3,5 – 20
133
 5 – 35    
82,5 – 83
 3,5 – 22
140
 5 – 36    

 

Mechanical Properties
Steel Grade
Tensile Strength, N/mm2(min)
Yield Strength,N/mm2 (min)
Elongation, % (min)
10
353
216
24
20
412
245
21
35
510
294
17
45
588
323
14
10Mn2
421
265
21
20Cr
431
-
16
40Cr
657
-
9
30CrMnSi
686
-
11
15CrMo
431
225
21
30CrMn
588
392
13

 

Chemical composition (%, max)
Steel Grade
C
Si
Mn
Cr
Ni
Mo
S
P
Cu
N
10
0,07-0,14
0,17-0,37
0,35-0,65
0,15
0,3
-
-
-
-
-
20
0,17-0,24
0,17-0,37
0,35-0,65
0,25
0,25
-
0,03
0,025
0,30
0,008
35
0,32-0,40
0,17-0,37
0,50-0,80
0,25
0,30
-
0,04
0,035
0,30
-
45
0,42-0,45
0,17-0,37
0,50-0,80
0,25
-
-
-
-
-
-
10Mn2
0,07-0,15
0,17-0,37
1,2-1,6
0,30
0,30
-
0,035
0,035
0,30
-
20Cr
0,17-0,23
0,17-0,37
0,50-0,80
0,70-1,0
0,30
-
0,035
0,035
0,30
-
40Cr
0,36-0,44
0,17-0,37
0,50-0,80
0,80-1,10
0,30
-
0,035
0,035
0,30
-
30CrMnSi
0,28-0,34
0,90-1,20
0,80-1,10
0,80-1,10
0,30
-
0,005
0,025
-
-
15CrMo
0,11-0,18
0,17-0,37
0,40-0,70
0,80-1,10
0,30
0,40-0,55
0,025
0,025
0,30
-
30CrMn
0,26-0,33
0,17-0,37
0,40-0,70
0,80-1,10
0,30
0,15-0,25
0,025
0,025
0,30
-
 

 

Round Seamless Hot Formed Structural Steel Pipe 10 , 20 , 35 , 45 , 10Mn2 , 15Cr , 20Cr 0 Round Seamless Hot Formed Structural Steel Pipe 10 , 20 , 35 , 45 , 10Mn2 , 15Cr , 20Cr 1
 
Round Seamless Hot Formed Structural Steel Pipe 10 , 20 , 35 , 45 , 10Mn2 , 15Cr , 20Cr 2 Round Seamless Hot Formed Structural Steel Pipe 10 , 20 , 35 , 45 , 10Mn2 , 15Cr , 20Cr 3

Mr. Richard SHEN

Managing Director

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