ISO 9001:2008 Registered
Hunan Standard Steel Co.,Ltd is as the one of member of Husteel Industry Group, as the professional manufacturer of steel pipe and pipe fittings,which has a complete system of production and sales serving our customers. 
Factory          Group
  
Seamless Steel Pipe

Structural Tube

Specifications Range
Out Diameter 1-1/4"-16"
Wall Thickness 0.109"-0.562"
Length 3.0m-18m


Chemical Composition%(heat analysis/product analysis)

 ASTM A500 C Mn P S Cu*
Grade A: .25 1.00 .035 .035 .035
Grade B: .26 1.00 .035 .035 .035
Grade C: .28 1.20 .035 .035 .035
Grade D: .30 1.30 .035 .035 .035
Grade E: .30 1.40 .035 .035 .035

For each reduction of .01 percentage point below the specified maximum for carbon, an increase of .06 percentage point above the specified maximum for manganese is permitted, up to a maximum of 1.50% by heat analysis and 1.60% by product analysis.

Chemical Composition%

 ASTM A500 C(max) Mn P(max) S(max) Si(min) Cu*(max) Ni*(max) Cr(max) Mo*(max) V*(max)
Grade A: .25 .27-.93 .035 .035 .10 .40 .40 .40 .15 .08
Grade B: .30 .29-1.06 .035 .035 .10 .40 .40 .40 .15 .08
Grade C: .35 .29-1.06 .035 .035 .10 .40 .40 .40 .15 .08

For each reduction of .01% below the specified carbon maximum, and increase of .06% manganese above the specified maximum will be permitted up to a maximum of 1.35%.

*These five elements combined shall not exceed 1.65% total composition (2010)


OD Tolerance:

OD Tolerance: +/- 0.5%
Wall Tolerance: +/- 10.00%


Minimum Yield/Tensile

 ASTM A500 Min.Yield Min. Tensile
Grade A: 33,000 PSI 45,000 PSI
Grade B: 42,000 PSI 58,000 PSI
Grade C: 46,000 PSI 62,000 PSI
Grade D: 36,000 PSI 58,000 PSI