Breaking News:

Structure Steel Seamless Pipe

3 125

Structure Steel Seamless Pipe

● Standard

GB/T8162-2008, ISO2937, ASTM A53, ASTM A106, JIS G 3441, BS EN 10210-1

● Uses:

The scope of use includes general structural and mechanical structures, and a large number of structural tubes used in construction, machinery, transportation, aviation, petroleum exploration and other industries.

● Dimensional tolerance

standard

Outer diameter tolerance

Thick wall tolerances`

GB/T 8162

D<50

±0.50mm

S<4mm

±12.5%

D≥50

±1%

4-20mm

+15/-12.5%

S≥20mm

±12.5%

DIN1629

D50

±0.50mm

S2Sn

+15/-10%

D48.3D48.3

±1%

2SnS4Sn

+12.5/-10%

S4Sn

±9%

ASTM A53

D<48.3

±0.4/-0.79mm

±12.5%

D ≥ 48.3

±1%

ASTM A106

D<48.3

±0.4/-0.79mm

±12.5%

D48.3-114.3

±0.79mm

D≥114.3

±1.59/-0.79mm

Seamless steel pipe for structural use Domestic main materials are 10#, 20#, 35#, 45#, 16Mn, 27SiMn 

● Mechanical properties

standard

Steel grade

Tensile strength (MPa)

Yield strength (MPa)

Elongation rate

<16mm

16-30mm

GB/T 8162

10

335

205

195

twenty four

20

390

245

235

20

35

510

305

295

17

45

590

335

325

14

16Mn

490

325

315

twenty one

DIN 1629

 

<16mm

>16mm

 

ST35

345-460

235

225

25

ST45

440-550

255

245

twenty one

ST55

540-645

295

285

17

ST52

490-630

355

345

twenty two

ST45

590-730

335

325

14

ASTM A53

A

330

205

 

B

415

240

ASTM A106

A

330

205

 

B

415

240

C

485

275


● Chemical composition (%):

standard Grade C Si Mn P≤ S≤ Cu≤ Ni≤ Cr≤ Mo≤ V≤
GB/T 8162 10 0.07-0.14 0.17-0.37 0.35-0.65 0.035 0.035 0.25 0.25 0.15 / /
20 0.17-0.24 0.17-0.37 0.35-0.65 0.035 0.035 0.25 0.25 0.25 / /
35 0.32-0.39 0.17-0.37 0.50-0.80 0.035 0.035 0.25 0.25 0.25 / /
45 0.42-0.50 0.17-0.37 0.50-0.80 0.035 0.035 0.25 0.30 0.25 / /
16Mn 0.12-0.20 0.20-0.55 1.20-1.60 0.045 0.045 0.25 0.25 0.25 / /
DIN 1629 St35 ≤0.18 0.15-0.35 0.35-0.65 0.035 0.035 0.25 0.25 0.25 / /
St45 ≤0.25 0.15-0.35 0.50-0.80 0.035 0.035 0.25 0.25 0.25 / /
St55 0.33-0.41 0.15-0.35 0.50-0.80 0.035 0.035 0.25 0.25 0.25 / /
St52 ≤0.20 ≤0.55 ≤1.50 0.035 0.035 0.25 0.25 0.25 / /
ASTM A53 CK45 0.42-0.50 0.17-0.37 0.50-0.80 0.035 0.035 0.25 0.25 0.25 / /
ASTM A106 A ≤0.25 / ≤0.95 0.05 0.045 0.40 0.40 0.40 0.15 0.08
B ≤0.30 / ≤1.20 0.05 0.06 0.40 0.40 0.40 0.15 0.08
A ≤0.25 ≥0.10 0.27-0.93 0.035 0.035 0.40 0.40 0.40 0.15 0.08
B ≤0.30 ≥0.10 0.29-1.06 0.035 0.035 0.40 0.40 0.40 0.15 0.08
C ≤0.35 ≥0.10 0.29-1.06 0.035 0.035 0.40 0.40 0.40 0.15 0.08

Key words: structural pipe , seamless steel pipe for structure , 20# seamless steel pipe , 45# seamless steel pipe , 27SiMn seamless steel pipe
 
 
 
.

Related post

3 Comments

  1. API 5CT J55 k55 N80 L80 STEEL PIPE
    API 5CT J55 k55 N80 L80 STEEL PIPE 1334300962 -  Reply / Edit

    API 5CT J55 k55 N80 L80 STEEL PIPE,erw API 5ct casing pipe,STANDARD: API 5ct ,2. MATERIAL:H40,J55,K55,N80,L80 ,3. SIZE: 4-1/2",5-1/2",7",9-5/8",13-3/8",20".

  1. 37Mn5 steel pipe
    37Mn5 steel pipe 1334306995 -  Reply / Edit

    37Mn5 steel pipe,certificate:API&ISO ,2.brand:Zhongzheng ,3:business:manufactuere ,4.Aim tobe honest,for win-win..

  1. Q235 Gr. B ERW Welded Steel Pipe
    Q235 Gr. B ERW Welded Steel Pipe 1337047623 -  Reply / Edit

    Q235 Gr. B ERW Welded Steel Pipe 1. High-frequency welded pipes, specification: 1/2"-820" 2. Square tube/pipes, specification: 1/2"-820" 3. Galvanized pipes, specification: 1/2"-820" 4. Hot expanding tube, specification: 1/2"-820" 5.

  1. schedule 40 steel pipe
    schedule 40 steel pipe 1335581048 -  Reply / Edit

    schedule 40 steel pipe ASTM A53/BS 6323 carbon steel seamless pipe OD: HRS 2"-30", CDS 0.875"-18" WT: HRS 0.250"-4" CDS 0.035"-0.875" .

  1. galvanized steel water pipe
    galvanized steel water pipe 1335926341 -  Reply / Edit

    galvanized steel water pipe,hot-dipped galvanized pipe,cold-dipped galvanized pipe. standard of ASTM / ASME, API, DIN, JIS .

Latest Comments

  • How long is the life of a spiral steel pipe ?
    How long is the life of a spiral steel pipe ?

    Spiral steel pipe itself has no life limit, and the service life is mainly related to the operating environment and production process. Spiral steel pipe operating environment is relatively poor In order to extend the service life, the oute.

  • Insulation Large Diameter Spiral Steel Pipe Structure and Features
    Insulation Large Diameter Spiral Steel Pipe Structure and Features

    Insulation Large Diameter Spiral Steel Pipe Structure and Features Insulation large diameter spiral steel pipe features: Polyurethane foam has good mechanical properties and thermal insulation properties. It can withstand 120C under normal.

Get in touch

Our company covers an area of 80, 000 m2 with a total assets of 90 million Yuan. There are 360 staff members including 80 technicians in our company. .

We also establish an effective complete quality control system. In 2003, our company obtained the certificate of ISO9001 Quality System Authentification!