Structural Tube, Structural Pipe, Mechanical Tube

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Structural Tube, Structural Pipe, Mechanical Tube

Top quality —— Hydralic Test, X-ray, Offer-line UT, Eddy Current Inspection, etc.
Competitive price —— Factory production, own transport team, to ensure the reasonable price.
Fast delivery —— Many sets of advanced production equipment to produce, as well as perfect logistics system.
Superior service —— Professional after-sales personnel to provide product support, use, maintenance and other services.

Applicable to the general structure, mechanical structure with seamless steel tubes.


structural pipe


 

 Outer Diameter:10.3mm - 711.2mm

 Wall Thickness:Hot finish: 0.250" - 4.00",Cold drawn:0.035" - 0.875"

 Length:Random Length, Fixed Length, SRL, DRL





 Standard and material

 DIN2391 St35St45St52

 ASTM A519 1010, 1020, 1025, 1035, 1045
 ASTM A513 1010, 1020, 1025, 1035, 1040
 BS6323 CFSCFS3ACFS4-11, EN10305-1 E215E235E355
 JIS G 3441 SCM415TK SCM 430 TKSCM 440 TK





 

 Heat treatment: Annealed, Normalized, Stress relieved, Cold finished,  Quenched and Tempered
 Delivery Condition: BKS, NBK,BK ,BKW, GBK(+A), NBK(+N), BK(+C)








 Test: Chemical Component Analysis, Mechanical Properties and other  inspection
 Third Inspection: BV, SGS,Lloyds ect.





Chemical Composition

Grade C Mn P S Si Cr Mo
1010 0.08-0.13 0.30-0.60 ≤0.04 ≤0.05
- - -
1020 0.08-0.23 0.30-0.60 ≤0.04 ≤0.05
- - -
1045 0.43-0.50 0.60-0.90 ≤0.04
≤0.05
- - -
4130 0.28-0.33 0.40-0.60 ≤0.04
≤0.05
0.15-0.35 0.80-1.10 0.15-0.25
4140 0.38-0.43 0.75-1.00 ≤0.04
≤0.05
0.15-0.35 0.80-1.10
0.15-0.25

Mechanical Properties

Grade Condition Tensile strength Mpa(min)
Yield stength Mpa(min)
Elongation %(min)
1020 CW 414 483 5
SR 345 448 10
A 193 331 30
N 234 379 22
1025 CW 448 517 5
SR 379 483 8
A 207 365 25
N 248 379 22
4130 SR 586 724 10
A 379 517 30
N 414 621 20
4140 SR 689 855 10
A 414 552 25
N 621 855 20



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