High pressure boiler tubes are kind of boiler tubes, which belong to the category of seamless steel tubes, method of manufacturing the same of seamless, but used in the manufacture of steel pipe has strict requirements. High pressure boiler tube used in high temperature and high pressure condition, the tube in the high temperature flue gas and water vapor under the action of oxidation and corrosion will occur. The steel pipe has high strength, high corrosion resistance and good stability. High pressure boiler tube is mainly used to manufacture high pressure and ultra-high pressure boiler super-heater and re-heater tube, a guide tube, a main steam pipe and so on.
Implementation Standards:
GB3087 (2008) – seamless steel tubes for low and medium pressure boilers (GB)
GB5310 (2008) – seamless steel tube for high pressure boiler (GB)
ASTM A106 – high temperature for seamless carbon steel pipe (American Standard)
ASTM A179 – Seamless Cold-drawn low -carbon steel heat-exchanger and condenser
ASTM A192 – Seamless carbon steel boiler tube for high-pressure service
ASTM A210 – Seamless medium-carbon steel boiler and superheater tubes
ASTM A334 – Seamless ans welded carbon and alloy steel tube for low temperature service
Chemical Composition:
|
Standard |
Grade |
Chemical Composition (%) |
|||||||||||
|
|
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
V |
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 0.23 |
0.17 0.37 |
0.35 0.65 |
≤0.025 |
≤0.015 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
≤0.08 |
– |
– |
|
20MnG |
0.17 0.23 |
0.17 0.37 |
0.70 1.00 |
≤0.025 |
≤0.015 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
≤0.08 |
– |
– |
|
|
25MnG |
0.23 0.27 |
0.17 0.37 |
0.70 1.00 |
≤0.025 |
≤0.015 |
≤0.25 |
≤0.15 |
≤0.20 |
≤0.25 |
– |
– |
||
|
15CrMoG |
0.12 0.18 |
0.17 0.37 |
0.40 0.70 |
≤0.025 |
≤0.015 |
0.80 1.10 |
0.40 0.55 |
≤0.20 |
≤0.30 |
– |
– |
– |
|
|
12Cr2MoG |
0.08 0.15 |
≤0.50 |
0.40 0.60 |
≤0.025 |
≤0.015 |
2.00 2.50 |
0.90 1.13 |
≤0.20 |
≤0.30 |
– |
– |
– |
|
|
12Cr1MoVG |
0.08 0.15 |
0.17 0.37 |
0.40 0.70 |
≤0.025 |
≤0.010 |
0.90 1.20 |
0.25 0.35 |
≤0.20 |
≤0.30 |
0.15 0.30 |
– |
– |
|
|
10Cr9Mo1VNbN |
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 |
0.06 0.10 |
0.03 0.07 |
|
|
ASTM A106 |
A 106 B |
0.17 0.25 |
≥0.1 |
0.70 1.00 |
≤0.030 |
≤0.030 |
– |
– |
– |
– |
– |
– |
– |
|
A 106 C |
0.23 0.27 |
≥0.1 |
0.70 1.00 |
≤0.030 |
≤0.030 |
– |
– |
– |
– |
– |
– |
– |
|
|
ASTM A179 |
A179 |
0.06 0.18 |
– |
0.27 0.63 |
≤0.035 |
≤0.035 |
– |
– |
– |
– |
– |
– |
– |
|
ASTM A192 |
A192 |
0.06 0.18 |
≤0.25 |
0.27 0.63 |
≤0.035 |
≤0.035 |
– |
– |
– |
– |
– |
– |
– |
|
ASTM A210 |
A210 Gr A-1 |
≤0.27 |
≤0.10 |
≤0.93 |
≤0.035 |
≤0.035 |
– |
– |
– |
– |
– |
– |
– |
|
A210 Gr C |
≤0.35 |
≤0.10 |
0.29-1.06 |
≤0.035 |
≤0.035 |
– |
– |
– |
– |
– |
– |
– |
|
|
ASTM A334 |
A334 Gr1 |
≤0.30 |
– |
0.40 1.06 |
≤0.025 |
≤0.025 |
– |
– |
– |
– |
– |
– |
– |
|
A334 Gr3 |
≤0.19 |
0.18 0.37 |
0.31 0.64 |
≤0.025 |
≤0.025 |
– |
– |
– |
– |
– |
– |
– |
|
|
A334 Gr6 |
≤0.30 |
≥0.1 |
0.29 1.06 |
≤0.025 |
≤0.025 |
– |
– |
– |
– |
– |
– |
– |
|
Mechanical property:
|
Standard |
Grade |
Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elongation (%) |
|
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 |
|
|
10Cr9Mo1VNbN |
≥585 |
≥415 |
≥20 |
|
|
ASTM A106 |
A106 B |
≥415 |
≥240 |
≥22 |
|
A106 C |
≥485 |
≥275 |
≥20 |
|
|
A179 |
A179 |
≥325 |
≥180 |
≥35 |
|
A192 |
A192 |
≥325 |
≥180 |
≥35 |
|
A210 |
A-1 |
≥415 |
≥255 |
≥30 |
|
C |
≥485 |
≥275 |
≥30 |
|
|
A334 |
Gr 1 |
≥380 |
≥205 |
≥35 |
|
Gr 3 |
≥450 |
≥240 |
≥30 |
|
|
Gr 6 |
≥415 |
≥240 |
≥30 |
Our Supply Range for sale:
Standard: GB 3087, GB 5310, ASTM A106
Grade: #10, #20, 20G, 20MNG, …… A106 B & A106C
Range of out diameter (OD): 1/2” to 6 inch
Range of wall thickness (WT): 2 mm to 25mm
Range of length: 1 m up to 16 m
End Procession: Plain end, Beveled
