ASTM A106 Grade B Carbon Steel Pipes And Tubes Boiler Fitted MTC
Certificated
As we know ASTM A106 Grade B pipe is one of the most popular
seamless steel pipes applied in different industries. Not only in
pipeline systems like oil and gas, water, mineral slurry
transmission, but also for boiler, construction, structural
purposes.
ASTM A106 Grade B Carbon Steel Seamless Pipes are commonly used in
low and middle pressure fluid pipeline, boiler, petroleum and
natural gas industry, drilling, chemical industry, electrical
industry, shipbuilding, fertilizer equipment and pipeline,
petrochemical.
ASTM A106 Seamless Pressure Pipe (also known as ASME SA106 pipe)
covers seamless carbon steel nominal wall pipe for high-temperature
service. Suitable for bending, flanging and similar forming
operations.
1. Standards
ASTM A106 ——Standard Specification for Seamless Carbon Steel Pipe
for High-Temperature Service
ASTM A335 ——Standard Specification for Seamless Ferritic
Alloy-Steel Pipe for High-Temperature Service
2. Application
For the high-pressure boiler and steam pipes, and the petrochemical
industry pipes;
Power plant; Chemical Fertilizer; Petrochemicals; Offshore Oils;
Gas Productions; Refineries and etc.
3. Steel pipes No. of main production:
ASTM A335 Grade P5, P9, P11, P12, P22, P91, P92
ASTM A106 Grade B, C
4. Dimensional Tolerance
| Pipe types | OD (mm) | Tolerance | WT (mm) | Tolerance |
| High Pressure Boiler Tube | 219~457 | ±1.0％ | ≤20 | -10% ~ +12.5% |
| 20~40 | -10% +10% |
| 457~1422 | ±0.9％ | ＞40~70 | -7％, +9％ |
| ＞70~20 | -6％, +8％ |
5. Chemical Composition:
| High Pressure Boiler Tube Chemical Requirements |
| Standard | Grade | UNS Designation | Composition, % |
| C | Mn | P | S | Si | Cr | Mo | Ni | V | Others |
| ASTM A335 | P5 | K41545 | 0.15max | 0.30-0.60 | 0.025 | 0.025 | 0.50max | 4.00-6.00 | 0.45-0.65 | | | ... |
| P9 | S50400 | 0.15max | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 | | | ... |
| P11 | K11597 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 | | | ... |
| P12 | K11562 | 0.05-0.15 | 0.30-0.61 | 0.025 | 0.025 | 0.50 max | 0.80-1.25 | 0.44-0.65 | | | ... |
| P22 | K21590 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 1.90-2.60 | 0.87-1.13 | | | ... |
| P91 | K91560 | 0.08-0.12 | 0.30-0.60 | 0.02 | 0.01 | 0.20-0.50 | 8.00-9.50 | 0.85-1.05 | 0.4 | 0.18-0.25 | N 0.030-0.070 |
| Al 0.02max |
| Cb 0.06-0.10 |
| Ti 0.01 max |
| Zr 0.01max |
| P92 | K92460 | 0.07-0.13 | 0.30-0.60 | 0.02 | 0.01 | 0.50 max | 8.50-9.50 | 0.30-0.60 | 0.4 | 0.15-0.25 | N 0.03-0.07 |
| Al 0.02 max |
| Cb 0.04-0.09 |
| W 1.5-2.00 |
| B 0.001-0.006 |
| Ti 0.01 max |
| Zr 0.01 max |
| ASTM A106 | Grade B | | 0.3 | 0.29–1.06 | 0.035 | 0.035 | 0.1 | 0.4 | 0.15 | 0.4 | 0.08 | |
| Grade C | | 0.35 | 0.29–1.06 | 0.035 | 0.035 | 0.1 | 0.4 | 0.15 | 0.4 | 0.08 | |
6. Mechanical Properties
| Standards | Steel pipes No. | Tensile strength | Yield strength | Elongation | Impact energy | Hardness |
| (Mpa) | (Mpa) | (%) | (J) |
| ASTM A335 | P5 | ≥415 | ≥205 | ≥22 | ≥35 | ≤187HB |
| P9 | ≥415 | ≥205 | ≥22 | ≥35 | |
| P11 | ≥415 | ≥205 | ≥22 | ≥35 | ≤163HB |
| P12 | ≥415 | ≥220 | ≥22 | ≥35 | ≤163HB |
| P22 | ≥415 | ≥205 | ≥22 | ≥35 | ≤163HB |
| P91 | 585～760 | ≥415 | ≥20 | ≥35 | ≤250HB |
| P92 | ≥620 | ≥440 | ≥20 | ≥35 | ≤250HB |
| ASTM A106 | Grade B | ≥415 | ≥240 | ≥22 | ≥35 | / |
| Grade C | ≥485 | ≥275 | ≥20 | ≥35 | / |
7. Available Size Range:
| OD | Thickness |
| mm | inch | mm | SCH |
| 88.9~1422 | 3''~ 56'' | 2.11~140 | ≥SCH10 |
| *If the steel grades and size you are looking for are not listed
above, please contact us for further information. |
