• Model NO.：IR-B steel pipe
• Diameter：219mm~508mm
• Wall Thickness：10mm~50mm
• Length：Fixed Length, by Random
• Surface：Heat Treatment, Polishing
• End Processing：Plain Ends, Bevel Ends
• Inspection：Third Party Inspection
• Transport Package：Standard Seaworthy Packing
• Specification：ASTM A335
• Trademark：Iron&steel
• Origin：China
• HS Code：73045910
• Production Capacity：1000ton Per Month

Type of pipeOuter diameterWall thicknessOD (mm)Tolerance (mm)WT (mm)Tolerance (mm)Hot rolled pipe219~457±1.0%≤20-10%~+12.5%>20~40-10%~+10%457~1066±0.9%>40~70-7%~+9%>70~120-6%~+8%
 Mechanical Properties of boiler pipe:standardSteel gradeTensile strength(MPa)Bend strength(Mpa)Elongation
%Impact energy(J)HardnessASME
SA106SA106B≥415≥240≥22≥35/SA106C≥485≥275≥20≥35/ASME
SA333SA333I≥380≥205≥28-45ºC≥18/SA333VI≥415≥240≥22-45ºC≥18/ 
 
ASME
SA335SA335 P11≥415≥205≥22≥35≤163HBSA335 P12≥415≥220≥22≥35≤163HBSA335 P22≥415≥205≥22≥35≤163HBSA335 P5≥415≥205≥22≥35≤187HBSA335 P91585~760≥415≥20≥35≤250HBSA335 P92≥620≥440≥20≥35250HB 
 
DIN17175ST45.8/III410~530≥255≥21≥27(DVM)/15Mo3450~600≥270≥22≥34(DVM)/13CrMo44440~590≥290≥22≥34(DVM)/10CrMo910480~630≥280≥20≥34(DVM)/EN10216-215NiCuMoNb5-6-4
(WB36)610~780≥440≥19≥40/Chemical composition boiler pipe:standardSteel gradeChemical composition (%)CSiMnPSCrMoCuNiVALWNbNASME
SA106SA106B0.17
~0.25≥0.10.7
~1.0≤0.03≤0.03         SA106C0.23
~0.27≥0.10.7
~1.0≤0.03≤0.03         ASME
SA333SA333I0.09
~0.12/0.7
~1.0≤0.02≤0.01         SA333II0.09
~0.12≥0.10.9~
1.1≤0.02≤0.01          
 
ASME
 
 
 
A335SA335P110.05
~0.150.5
~1.00.3
~0.6≤0.03≤0.031.0
~1.50.5
~1.0       SA335P120.05
~0.15≤0.50.3~
0.6≤0.03≤0.030.8
~1.250.44
~0.65       SA335P220.05
~0.15≤0.50.3~
0.6≤0.03≤0.031.9
~2.60.87
~1.13       SA335P5≤0.15≤0.50.3~
0.6≤0.03≤0.034.0
~6.00.45
~0.65       SA335P910.08
~0.120.2
~0.50.3~
0.6≤0.02≤0.018.0
~9.50.85
~1.05 ≤0.40.18
~0.25≤0.015 0.06
~0.10.03
~0.07SA335P920.07
~0.13≤0.50.3~
0.6≤0.02≤0.018.5
~9.50.3~
0.6B0.001
0.006≤0.40.15
~0.25≤0.0151.5
~2.00.04
~0.090.03
~0.07DIN
17175ST45.8III≤0.210.1
~0.350.4
~1.2≤0.04≤0.04≤0.3        15Mo30.12
~0.20.1
~0.350.4
~0.8≤0.035≤0.035 0.25
~0.35       13CrMo440.1
~0.180.1
~0.350.4
~0.7≤0.035≤0.0350.7
~1.10.45
~0.65       10CrMo9100.08
~0.15≤0.50.3
~0.7≤0.025≤0.022.0
~2.50.9
~1.1≤
0.3≤0.3 ≤0.015 0.015
~0.045 EN10216
-2WB36≤0.170.25
~0.50.8
~1.2≤0.025≤0.02≤0.30.25
~0.50.5
~0.81.0
~1.3 ≤0.015   Further more, the plant has large-scale cold rolling machine(by 1200t, 1600t, 2000t), the maximum cold rolling diameter can be 920mm. Cold rolling technics can improve the precision of diameter and wall thickness. So we can supply high steel grade steel pipe with big diameter and thin thickness.
Our service
Make production according to customer's specific requirements strictly.
Accept inspection during the production or before shipment.
Provide the original copy of MTC(Mill testing certificate)
Provide the standard seaworthy packing.
Arrange the most professional shipment