Boiler Drill Oil Application ASTM A106 Gr. B Round Tube Structure Hot Rolled SA213-T91 Certified Low High Pressure Alloy/Carbon Seamless Pipe

Product Description

Boiler Drill Oil Application ASTM A106 Gr. B Structure SA213-T91 Certified Low High Pressure Alloy Tube Carbon Seamless Pipe

Product Description

SA106 steel pipe= ASME SA106 seamless carbon steel pipe
Simple explanation of the term
SA106:American ASME standard grade for high-temperature carbon steel pipe
sa106 steel pipe
SA106 steel pipe
Detailed explanation
Full nameASME SA106 seamless carbon steel pipe
Common grades
SA106 Grade A
SA106 Grade B (most widely used)
SA106 Grade C
UsageHigh-temperature and high-pressure pipelines in boilers, petroleum, chemical and power industries.
1.Chemical Composition of SA106 Steel Pipe (ASME SA106 / ASTM A106, mass percentage, %)
Below is the official standard composition limits for Grade A, Grade B, Grade C (all seamless carbon steel grades).
Full Composition Table

Element	SA106 Grade A	SA106 Grade B (most common)	SA106 Grade C
Carbon (C)	≤ 0.25	≤ 0.30	≤ 0.35
Manganese (Mn)	0.27 - 0.93	0.29 - 1.06	0.29 - 1.06
Silicon (Si)	≥ 0.10	≥ 0.10	≥ 0.10
Phosphorus (P)	≤ 0.035	≤ 0.035	≤ 0.035
Sulfur (S)	≤ 0.035	≤ 0.035	≤ 0.035
Chromium (Cr)	≤ 0.40	≤ 0.40	≤ 0.40
Copper (Cu)	≤ 0.40	≤ 0.40	≤ 0.40
Molybdenum (Mo)	≤ 0.15	≤ 0.15	≤ 0.15
Nickel (Ni)	≤ 0.40	≤ 0.40	≤ 0.40
Vanadium (V)	≤ 0.08	≤ 0.08	≤ 0.08

Important Standard Notes
Mn adjustment ruleFor every 0.01% reduction in maximum Carbon, Manganese may increase by 0.06% above the stated range, up to a hard limit of Mn ≤ 1.35%.
Total residual elements limitThe combined content of Cr + Cu + Mo + Ni + V shall not exceed 1.00% in all grades.
Base steel typeSA106 is plain low-alloy carbon steel; no intentional alloy additions, only controlled residuals.
2.Mechanical Properties of SA106 Steel Pipe (ASME SA106 / ASTM A106)
Official standard minimum values for Grade A, Grade B, Grade C (all seamless carbon steel for high-temperature service).
 Tensile & Yield Strength (MPa / psi)

Property	SA106 Grade A	SA106 Grade B (most common)	SA106 Grade C
Minimum Tensile Strength	330 MPa (48,000 psi)	415 MPa (60,000 psi)	485 MPa (70,000 psi)
Minimum Yield Strength	205 MPa (30,000 psi)	240 MPa (35,000 psi)	275 MPa (40,000 psi)

 Elongation (50mm / 2 inch gauge length, minimum %)

Direction	Grade A	Grade B	Grade C
Longitudinal	35 %	30 %	30 %
Transverse	25 %	16.5 %	16.5 %

 Hardness
Maximum Brinell Hardness (HB): ≤ 143 HB for all grades
 Impact Toughness (Charpy V-Notch)
Standard test temperature: −29 °C (−20 °F)
Minimum absorbed energy: ≥ 20 J
 Other Standard Mechanical Requirements
Bend test: Pipes ≤ NPS 2 (DN50) can withstand 90° bending without cracking.
Hydrostatic test: All pipes pass pressure leakage test; allowable fiber stress = 60% of minimum yield strength.
Weldability: Excellent weldability for Grade A & B; Grade C needs proper preheating due to higher carbon content.
High-temperature performance: Long-term service temperature up to 450°C; suitable for boiler, steam and high-pressure pipelines.
General Trend
Strength increases from Grade A → B → C, while ductility/elongation slightly decreases.

Product Name	Carbon steel pipe
Size Tolerance	±1%
OD	6-1020 mm
Wall Thickness	Cold rolled:1~20.0mm
	Hot rolled:4mm~200mm
Length	1-12M
Technology	Hot roll, cold roll, cold drawn, ect.
Material	10#-45#, 16Mn, A53-A369, Q195-Q345, ST35-ST52,Grade A, Grade B, Grade C,etc.
Standards	5L, ASTM A53-2007, ASTM A671-2006, ASTM A252-1998, ASTM A450-1996, ASME B36.10M-2004, ASTM A523-1996, BS 1387, BS EN10296, BS 6323, BS 6363, BS EN10219, GB/T 3091-2001, GB/T 13793-1992, GB/T9711
Certifications	MTC ISO9001
Packing	Industry standard packaging or according to client's requirement
Payment	T/T,L/C,Western Union,Paypal,Apple Pay,Google Pay,D/A,D/P,MoneyGram
Delivery time	Usually 15 working days, your purchase volume determines our delivery time

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Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of "quality first, customer first and credit-based", since the establishment of the company and always to do our best to satisfy potential needs of our customers. Our company is sincerely to willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with irresistible force.

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FAQ

Q1: Why choose us?
A: Our company, as an internationally experienced and professional supplier, has been engaged in steel business for more than ten years. We can provide a variety of steel products with high quality to our clients.

Q2: Can you provide OEM/ODM service? 
A: Yes. Please feel free to contact us for more details.

Q3:What is your terms of payment?
A: 100% T/T advance.
30% T/T and balance against copy of documents.
30% T/T advance, balance L/C at sight.

Q4: Can we visit your factory? 
A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.

Q5: Can you provide sample? 
A: Yes. Sample is free for regular sizes, but the buyer needs to pay freight cost.

Q6: How long is your delivery time?
A: Regular lead time is 15 to 30 days after receiving deposit.