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Beryllium Copper / Copper UNS C17200 Alloy Condenser Seamless Steel Tube 10 - 80mm OD ASTM B111 Copper and Copper-Alloy Seamless Condensers tubes and Ferrule Stock Good quality for heat exchanger General size as OD 19.05, 25 ,12.7 ,WT 1.65 ,1.245 ,2.11. Chemical requirements Copper or copper alloy UNS No. Copper Tin Al Ni incl Co Pb max Fe max Zn max Mn max As Sb P max C44300 70.0-73.0 0.9-1.2 0.07 0.06 remainder 0.02-0.06 C44400 70.0-73.0 0.9-1.2 0.07 0.06 remainder 0.02-0

Seamless Carbon and Alloy Steel Mechanical Tubing ASTM A519 Size range: O.D.:6-350mm W.T.:1-50mm L:max12000mm Standard: ASTM A519 Applications: for Machinery, Mechanical engineer Steel Grade and Chemical Compositions: Steel C Mn P S Si Cr Mo Grade max max max max min 1008 0.10 0.30-0.50 0.040 0.050 1010 0.08-0.13 0.30-0.60 0.040 0.050 1018 0.15-0.20 0.60-0.90 0.040 0.050 1020 0.18-0.23 0.30-0.60 0.040 0.050 1026 0.22-0.28 0.60-0.90 0.040 0.050 1035 0.32-0.38 0.60-0.90 0.040 0

TORICH Custom Round 34CrMo4 Alloy Steel Pipe With Heat Treatment Good surface quality Custom Round Seamless Steel Tube 34CrMo4 Alloy Steel Round Shape 1 - 12m With Heat Treatment Material:34CrMo4 Chemical composition: C:0.30~0.37 Si:0.10~0.40 Mn:0.60~0.90 S:permissible residual content ≤0.035 P:permissible residual content ≤0.035 Cr:0.90~1.20 Ni:permissible residual content ≤0.030 Cu:permissible residual content ≤0.030 Mo:0.15~0.30 Mechanical properties: Tensile strength σb

GB/T8162 Structure Carbon Seamless Steel Pipes Steel Grade/Steel Material/Steel Number: 10# 15# 20# 25# 35# 45# 20Mn 25Mn Q235 Q275 Q295 Q345 Q390 Q420 Q460 40Mn2 45Mn2 27SiMn 30Cr 35Cr 40Cr 45Cr 50Cr 38CrSi 12CrMo 15CrMo 35CrMo 42CrMo 12CrMoV Size Range: OD: 5-220mm WT:0.5-30mm Length:1-12m,as customer’s requirement Characteristic: Good Surface Quality Good OD and ID tolerance controlled to Technical Standard Stable quality 100% Eddy Current Test TORICH QUALITY ASSURANCE

GB/T8163 Seamless Steel Pipes For Liquid/Gas Transportation gas pipe Steel Grade/Steel Material/Steel Number: 10# 20# Q295 Q345 Q390 Q420 Q460 Size Range: OD: 5-220mm WT:1-30mm Length:1-12m,as customer’s requirement Characteristic: Good Surface Quality Good OD and ID tolerance controlled to Technical Standard Stable quality 100% Eddy Current Test TORICH QUALITY ASSURANCE Production Process: Seamless Cold Drawn or Seamless Cold Rolled + Heat Treatment of Annealing or

TORICH ASTM A847 Cold Formed Seamless High Strength Low Alloy Structural Tubing TORICH ASTM A847 Cold Formed Seamless High Strength Low Alloy Structural Tubing Standard: ASTM A847, ASTM A370, ASTM A700, ASTM A751, ASTM G101 Size range: OD: 30-813mm WT: 3-12.7mm Length: ≥1.5m Material: Cold-Formed Tubing Shape: Round, Square rectangular and special shape. Test: Flattening Test Tension Test Usage: Structural Tubing with Improved Atmospheric Corrosion Resistance. Chemical

Standard: ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing ASTM A519 Applications: for Machinery, Mechanical Engineer Size range: O.D.:6-350mm W.T.:1-50mm L:max12000mm Raw Material: Round Steel Billet from Bao Steel with grade SAE1008 SAE1010 SAE1018 SAE1020 SAE1026 etc Production: Hot Piercing→Cold Drawing → Sizing to final dimension Steel Grade and Chemical Compositions: Steel C Mn P S Si Cr Mo Grade max max max max min 1008 0.10 0.30-0.50 0.040 0.050 1010 0.08-0

ASTM A179 Seamless Cold Drawn Low-Carbon Steel Heat-Exchanger Tubes and Condenser Tubes ASTM A179 Seamless Cold Drawn Low-Carbon Steel Heat-Exchanger Tubes and Condenser Tubes O.D 5-420mm W.T 0.5-50mm L MAX 12M Applications for Boiler, Superheaters,Heat-Exchangers,Condensers Ubend Tubes according to Customer request Steel Grade And Chemical Compositions C 0.06-0.18 Mn 0.27-0.63 P ≤0.035 S ≤0.035 Mechanical Properties Tensil Streghth : min ksi(Mpa) 47(325) Yield Point : min

Cold Drawn Alloy Seamless Steel Pipe with AISI 4130 Steel Grade ASTM A519 SEAMLESS STEEL TUBES, by DOM production, with the steel grade of SAE4140 and SAE4130, other alloy steel grade upon customer's agreement.: SAE4130: C: 0.28-0.33% Mn: 0.40-0.60% P max 0.40% S max 0.40% Si: 0.15-0.35% Cr: 0.80-1.10% Mo: 0.15-0.25% SAE4140: C: 0.38-0.43% Mn: 0.75-1.00% P max 0.40% S max 0.40% Si: 0.15-0.35% Cr: 0.80-1.10% Mo: 0.15-0.25% Annealed AISI4130 AISI4140 Cold Drawn Alloy Steel