Small Calibers Seamless Steel Pipe for Boiler Pipe

Small Calibers Seamless Steel Pipe for Boiler Pipe

Model No.︰42CrMo, 37Mn5

Brand Name︰ironsteel

Country of Origin︰China

Unit Price︰US $ 600 / ton

Minimum Order︰10 ton

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Product Description

Small Calibers Seamless steel tubes for high(low and medium) pressure boilers and petrochemical industry
Standards:
GB3087 Chinese national standard
GB5310 Chinese national standard
ASME SA210 Boiler and pressure vessel code of ASME
ASME SA213 Boiler and pressure vessel code of ASME
DINl7175 Deutsches industrial standard~
Application:
Used as the pipes on the heated side of low and medium pressure boilers(normally with operating pressure not higher than 5.88Mpa and
operating temperature below 450 oc);as the pipes on the heated sides of high·pressure boilers,economizers,overheaters,reheaters and pipes
for petrochemical industry(with the operating pressure above 9.8Mpa and operating temperature ranging between 450~C~650~C1
Specifications of ma}or steel:
10,20,20G,20MnG,25MnG,15CrMoG,12Cr2MoG,12Cr1MoVG,12Cr2MoWVTiB,10Cr9Mo1VNb,SA210A1,SA210C,SA213 T11,SA213 T12,SA213 T22,SA213 T23,SA213 T91,SA213 T92,ST45.8/III,15Mo3,13CrMo44,10CrMo910etc.

Diamensional tolerances:
 

Types of steel tubes Outer diameters Wall thickness
Cold-rolled tubes Tube sizes(mm) Tolerances(mm) Tube sizes (mm) Tolerances(mm)
>30~50 ±0.3 >3~20 ±10%


 

Mechanical properties:

Standard codes Models of steel tubes Tensite strength(MPa) Yield strength(MPa) Elongation(%) Hardness
GB3087 10 335~475 ≥195 ≥24 /
20 410~550 ≥245 ≥20 /
GB5310 20G 410~550 ≥245 ≥24 /
20MnG ≥415 ≥240 ≥22 /
25MnG ≥485 ≥275 ≥20 /
15CrMoG 440~640 ≥235 ≥21 /
12Cr2MoG 450~600 ≥280 ≥20 /
12Cr1MoVG 470~640 ≥255 ≥21 /
12Cr2MoWVTiB 540~735 ≥345 ≥18 /
10Cr9Mo1VNb ≥585 ≥415 ≥20 /
ASME SA210 SA210A-1 ≥415 ≥255 ≥30 ≤143HB
SA210C ≥485 ≥275 ≥30 ≤179HB
ASME SA213 SA213 T11 ≥415 ≥205 ≥30 ≤163HB
SA213 T12 ≥415 ≥220 ≥30 ≤163HB
SA213 T22 ≥415 ≥205 ≥30 ≤163HB
SA213 T23 ≥510 ≥400 ≥20 ≤220HB
SA213 T91 ≥585 ≥415 ≥20 ≤250HB
SA213 T92 ≥620 ≥440 ≥20 ≤250HB
DIN17175 ST45.8/III 410~530 ≥255 ≥21 /
15Mo3 450~600 ≥270 ≥22 /
13CrMo44 440~590 ≥290 ≥22 /
10CrMo910 480~630 ≥280 ≥20 /


 

Chemical composition:

Standard codes Models of steel tubes Chemical compositions(%)
C Si Mn P S Cr Mo Cu Ni V Al W Ti Nb N
GB3087 10 0.07~0.13 0.17~0.37 0.38~0.65 ≤0.030 ≤0.030 0.3~0.65 / ≤0.25 ≤0.30 / /        
20 0.17~0.23 0.17~0.37 0.38~0.65 ≤0.030 ≤0.030 0.3~0.65 / ≤0.25 ≤0.30 / /        
GB5310 20G 0.17~0.24 0.17~0.37 0.35~0.65 ≤0.030 ≤0.030 ≤0.25 ≤0.15 ≤0.20 ≤0.25 ≤0.08          
20MnG 0.17~0.24 0.17~0.37 0.70~1.00 ≤0.030 ≤0.030 ≤0.25 ≤0.15 ≤0.20 ≤0.25 ≤0.08          
25MnG 0.18~0.24 0.17~0.37 0.80~1.10 ≤0.030 ≤0.030 ≤0.25 ≤0.15 ≤0.20 ≤0.25 ≤0.08          
15CrMo 0.12~0.18 0.17~0.37 0.40~0.70 ≤0.030 ≤0.030 0.80~1.10 0.40~0.55 ≤0.20 ≤0.30            
12Cr2MoG 0.08~0.15 ≤0.50 0.40~0.70 ≤0.030 ≤0.030 2.00~2.50 0.90~1.20 ≤0.20 ≤0.30            
12Cr1MoV 0.08~0.15 0.17~0.37 0.40~0.70 ≤0.030 ≤0.030 0.90~1.20 0.25~0.35 ≤0.20 ≤0.30 0.15~0.30          
12Cr2MoWVTiB 0.08~0.15 0.45~0.75 0.45~0.65 ≤0.030 ≤0.030 1.60~2.10 0.50~0.65 ≤0.20 ≤0.30 0.28~0.42   0.30~0.55 0.08~0.15 B 0.002~0.008  
10Cr9Mo1VNb 0.08~0.12 0.20~0.50 0.30~0.60 ≤0.020 ≤0.010 8.00~9.50 0.85~1.05 ≤0.20 ≤0.40 0.18~0.25 ≤0.015     0.06~0.10 0.03~0.07
ASME SA210 SA210A-1 0.13~0.19 ≥0.1 0.45~0.65 ≤0.030 ≤0.030                    
SA210C 0.18~0.24 ≥0.1 0.80~1.10 ≤0.030 ≤0.030                    
ASME SA213 SA213 T11 0.05~0.15 0.50~1.0 0.30~0.60 ≤0.030 ≤0.030 1.00~1.50 0.50~1.00                
SA213 T12 0.05~0.15 ≤0.50 0.30~0.61 ≤0.030 ≤0.030 0.80~1.25 0.44~0.65                
SA213 T22 0.05~0.15 ≤0.50 0.30~0.60 ≤0.030 ≤0.010 1.90~2.60 0.87~1.13                
SA213 T23 0.04~0.10 ≤0.50 0.10~0.60 ≤0.030 ≤0.030 1.90~2.60 0.05~0.30       ≤0.030 1.45~1.75 B0.0005~0.006 0.02~0.08 ≤0.040
SA213 T91 0.08~0.12 0.20~0.50 0.30~0.60 ≤0.020 ≤0.010 8.00~9.50 0.85~1.05   ≤0.40 0.18~0.25 ≤0.015     0.06~0.10 0.03~0.07
SA213 T92 0.07~0.13 ≤0.50 0.30~0.60 ≤0.020 ≤0.010 8.50~9.50 0.30~0.60   ≤0.40 0.15~0.25 ≤0.015 1.50~2.00 B 0.001~0.006 0.04~0.09 0.03~0.07
DIN 17175 ST45.8/III ≤0.21 0.10~0.35 0.40~1.20 ≤0.040 ≤0.040                    
15Mo3 0.12~0.20 0.10~0.35 0.40~0.80 ≤0.035 ≤0.035   0.25~0.35                
13CrMo44 0.10~0.18 0.10~0.35 0.40~0.70 ≤0.035 ≤0.035 0.70~1.10 0.45~0.65                
10CrMo910                              


 
 

Payment Terms︰ TT, L/C

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