ASTM A106 is a standard specification for seamless carbon steel pipes used in high-temperature services.
The specification covers three different grades: A, B, and C, which differ mainly in their chemical composition and mechanical properties.
Chemical Composition
Grade A has the lowest carbon content, followed by Grade B and then Grade C, which has the highest carbon content.
- Grade A: ≤ 0.25% Carbon
- Grade B: ≤ 0.30% Carbon
- Grade C: ≤ 0.35% Carbon
Mechanical Properties
Tensile Strength (Ultimate strength):
- Grade A: 48,000 psi (330 MPa)
- Grade B: 60,000 psi (415 MPa)
- Grade C: 70,000 psi (485 MPa)
Yield Strength (The stress at which material begins to deform permanently):
- Grade A: 30,000 psi (205 MPa)
- Grade B: 35,000 psi (240 MPa)
- Grade C: 40,000 psi (275 MPa)
Applications
- Grade A: Used where lower strength is acceptable, such as low-pressure piping.
- Grade B: The most commonly used grade, suitable for higher pressure and temperature.
- Grade C: Used for even higher pressure and temperature applications due to its higher strength.
In summary, Grade A has the lowest strength, while Grade C has the highest strength. Grade B is the most widely used due to its balance of strength and cost.
For any needs on ASTM A106 Grade A, B, and C, please contact me freely.
Email: info@gneesteels.com
Whatsapp (WeChat) :+86 15824687445
FAQ
Q: What is ASTM A106?
A: ASTM A106 GR B Grade is a carbon steel pipe specification for high-temperature service. It's commonly used in industrial plants, power plants, refineries, and chemical plants. ASTM A106 Grade B provides good mechanical properties and resistance to high temperatures.
Q: What is ASTM A106 type?
A: seamless carbon steel pipe
ASTM A106/ASME SA106 is the standard specification for seamless carbon steel pipe used for high-temperature services. It includes three grades: A, B, and C, with Grade B being commonly used.
Q: What is the equivalent of ASTM A106 Grade B steel?
A: ASTM A106 Grade B steel is equivalent to several other steel standards, including ASTM A53 Grade B, API 5L Grade B, DIN 17175 St35. 8, JIS G3454 STPG 370, and BS 3601 360A.
Q: What is the difference between A106 and A105?
A: ASTM A105 is a forged carbon steel with a maximum carbon content of 0.35%, while A106 is a seamless carbon steel pipe with a full carbon content of 0.30%. Hence, the chemical composition gives A105 a slightly higher tensile strength and yield point, whereas A106 offers better flexibility.
| Other steel plate | ||||
| Name | Material | Specification (mm) | Tons | Remark |
| Low Alloy | Q345A, Q345B, Q345C, Q345D, Q345E, Q390, Q420, Q460C, ST52-3, S355J2+N, SS400, SA302GrC, S275NL, 35CrMo | 6 - 350 | 5788.56 | Normalizing, tempered ,controlled rolling, hot rolling , Hot rolling,1st inspection, 2nd inspection, 3rd inspection |
| Pressure Vessel Plate | Q245R, Q345R, Q370R, 16MnDR, 09MnNiDR, 15CrMoR, 14Cr1MoR, 12Cr2Mo1R, SA516Gr60, SA516Gr70, SA516Gr485, SA285, SA387Gr11, SA387Gr12, SA387Gr22, P265,P295,P355GH,Q245R(R-HIC),Q345R(R-HIC) | 3 - 300 | 8650 | Normalizing, tempered ,controlled rolling, hot rolling , Hot rolling,1st inspection, 2nd inspection, 3rd inspection |
| High-Strength Plate | WH785D/E,Q960D/E, Q890D/E,WH60D/E,WH70B,Q550D,Q590D,Q690D/E | 8 - 120 | 3086.352 | Quenched and tempered |
| Wear-Resistant Plate | NM360, NM400, NM450, NM500 | 6 - 150 | 3866.297 | Quenched and tempered |
| Bridge Plate | Q235qC, Q345qC, Q370qC, Q420qC, Q345qDNH, Q370qDNH, A709 - 50F - 2, A709 - 50T - 2 | 8 - 200 | 2853.621 | Hot rolling, normalized ,hot rolling controlled rolling, quenched and tempered + toughness and brittleness |
