One common standard for SSAW (Spiral Submerged Arc Welded) steel pipes is the API 5L standard.

Under API 5L, there are different grades of SSAW Steel Pipes designed for various applications in the oil and gas industry and beyond. Some common API 5L grades for SSAW steel pipes include:

1. API 5L Grade B: This is one of the most common grades and is widely used for transporting gas, water, and oil.

2. API 5L X42: With a minimum yield strength of 42,000 psi, this grade is used for transportation of natural gas and oil.

3. API 5L X52: Offering a minimum yield strength of 52,000 psi, this grade is used for transportation of oil and gas.

4. API 5L X60: With a minimum yield strength of 60,000 psi, this grade is commonly used for oil and gas transportation systems.

5. API 5L X65: This grade has a minimum yield strength of 65,000 psi and is suitable for high-pressure applications in the oil and gas industry.

6. API 5L X70: Known for its high strength with a minimum yield strength of 70,000 psi, this grade is used in demanding applications.

These API 5L grades of SSAW steel pipes are designed to meet specific requirements for strength, durability, and performance in various applications. They are widely used in industries such as oil and gas, petrochemical, construction, and more, where reliable and durable pipelines are essential for transportation and infrastructure projects.

In addition to the API 5L standard, several other standards define grades of SSAW (Spiral Submerged Arc Welded) steel pipes that cater to different applications. Here are some more standard grades commonly used in the industry:

1. EN 10217-1:

P235: This grade is commonly used for pressure purposes and has a minimum yield strength of 235 MPa.

P265: Another grade under this standard with a minimum yield strength of 265 MPa, suitable for pressure applications.

2. EN 10217-2:

P235GH: This grade is specifically used for elevated temperature service and has a minimum yield strength of 235 MPa.

P265GH: With a minimum yield strength of 265 MPa, this grade is also suitable for elevated temperature applications.

3. EN 10219:

S235JRH: This grade is commonly used for structural applications and has a minimum yield strength of 235 MPa.

S355J2H: With a minimum yield strength of 355 MPa, this grade is suitable for structural applications requiring higher strength.

4. ASTM A252:

Grade 1: Typically used for structural applications involving low-pressure fluid transport and has a minimum yield strength of 30,000 psi.

Grade 2: Suitable for structural applications with a minimum yield strength of 35,000 psi.

Grade 3: This grade is used for applications requiring high strength with a minimum yield strength of 45,000 psi.

5. ASTM A139:

Grade A: Suitable for conveying gas, water, and oil in both the oil and natural gas industries.

Grade B: This grade is used for conveying non-corrosive products and has a tensile strength ranging from 60,000 to 72,000 psi.

6. DIN 2458:

St37-2: A commonly used grade for general structural purposes with good weldability and formability.

St44-2: Offering higher strength than St37-2, suitable for applications requiring increased load-bearing capacity.

St52-3: Known for its high strength and good cold-forming properties, ideal for structural applications.

7. GB/T 9711:

L210: With a minimum yield strength of 210 MPa, suitable for low-pressure fluid transportation.

L245: Offering a minimum yield strength of 245 MPa, used for conveying gas, water, and oil.

L290: This grade provides a minimum yield strength of 290 MPa and is suitable for medium-pressure applications.

8. JIS G3457:

STPY400: A grade commonly used for high-pressure gas piping with good weldability.

STPY41: Offering good ductility and suitable for high-pressure applications in the oil and gas industry.

9. EN 10208:

L245GA: Designed for gas and oil transmission pipelines with a minimum yield strength of 245 MPa.

L360GA: Offering a minimum yield strength of 360 MPa, suitable for high-pressure gas and oil transmission.

10. KS D 3566:

SHS: Square Hollow Section pipes suitable for structural applications.

RHS: Rectangular Hollow Section pipes commonly used in construction and infrastructure projects.

11. EN 10210:

S235JRH: Used for structural hollow sections with a minimum yield strength of 235 MPa.

S355J2H: Offering a minimum yield strength of 355 MPa, suitable for structural applications requiring higher strength.

12. BS 4360:

Grade 43: Commonly used for general construction purposes due to its good weldability and strength.

Grade 50: Offering higher strength than Grade 43, suitable for structural applications requiring increased load-bearing capacity.

Grade 55: Known for its high strength and good formability, ideal for structural applications.

13. CSA G40.21:

Grade 260W: Suitable for structural steel applications with a minimum yield strength of 260 MPa.

Grade 300W: Offering a minimum yield strength of 300 MPa, used in structural applications requiring higher strength.

14. ISO 3183:

L245: Designed for gas and oil transmission pipelines with a minimum yield strength of 245 MPa.

L415: Offering a minimum yield strength of 415 MPa, suitable for high-pressure gas and oil transmission.

15. ASTM A671:

CC60: This grade is commonly used for atmospheric and lower temperatures in various applications.

CC65: Suitable for atmospheric and moderate temperature applications, providing good impact properties.

CC70: Known for its high strength and good toughness, ideal for low-temperature applications.

16. ASTM A672:

C60: Suitable for atmospheric and lower temperature applications with good impact properties.

C65: Offering better strength and toughness than C60, suitable for moderate temperature applications.

C70: Known for its high strength and good weldability, ideal for low-temperature applications.

17. ASTM A139:

Grade C: Suitable for conveying gas, water, and oil in both the oil and natural gas industries.

Grade D: Used for conveying non-corrosive products with a tensile strength ranging from 60,000 to 72,000 psi.

18. EN 10219:

S275J0H: This grade is commonly used for structural applications with a minimum yield strength of 275 MPa.

S355J0H: Offering a minimum yield strength of 355 MPa, suitable for structural applications requiring higher strength.

19. EN 10210:

S275J2H: Used for structural hollow sections with a minimum yield strength of 275 MPa.

S355J2H: Providing a minimum yield strength of 355 MPa, suitable for structural applications requiring higher strength.

20. KS D 3566:

SHS: Square Hollow Section pipes suitable for structural applications.

RHS: Rectangular Hollow Section pipes commonly used in construction and infrastructure projects.

21. GB/T 3091:

Q195: A common grade for general structural applications with good weldability.

Q235: Offering higher strength than Q195, suitable for applications requiring increased load-bearing capacity.

Q345: Known for its high strength and good cold-forming properties, ideal for structural applications.

These standard grades of SSAW steel pipes adhere to specific requirements set by different standards organizations and are used in various applications across industries such as construction, infrastructure, oil and gas, and more. The selection of the appropriate grade depends on factors like operating conditions, structural requirements, and material properties needed for the intended application.

Features and characteristics of the standard grades of SSAW steel pipes

Here are some key features and characteristics of the standard grades of SSAW (Spiral Submerged Arc Welded) steel pipes commonly used in various industries:

1. API 5L Grades:

API 5L Grade B: Good weldability, suitable for general transportation of gas, water, and oil.

API 5L X42 to X70: High-strength grades with varying yield strengths, suitable for different pressure and temperature requirements in oil and gas transportation.

2. EN 10217:

P235 & P265: Good formability and weldability, suitable for pressure applications.

3. EN 10219 & EN 10210:

S235JRH & S275J0H: Suitable for structural applications with moderate to high strength requirements.

S355J0H & S355J2H: Higher strength grades suitable for applications requiring superior load-bearing capacity.

4. ASTM A252:

Grades 1 to 3: Designed for use in deep foundations, marine structures, and other applications requiring high load-bearing capacity.

5. ASTM A139 & ASTM A671/A672:

Various grades: Offer good corrosion resistance and are suitable for conveying various fluids at different temperatures.

6. GB/T 9711 & GB/T 3091:

L210 to L290: Suitable for low to medium-pressure fluid transportation applications.

Q195 to Q345: Varying strengths suitable for different structural applications.

7. JIS G3457:

STPY400 & STPY41: Good weldability and ductility, suitable for high-pressure gas piping.

8. DIN 2458 & KS D 3566:

St37-2 to St52-3: Good weldability and formability, suitable for general construction and structural applications.

SHS & RHS: Hollow section pipes designed for structural applications.

9. ISO 3183:

L245 to L415: Designed for gas and oil transmission pipelines with varying strength levels.

10. BS 4360:

Grade 43, 50, 55: These grades offer good weldability and strength, suitable for general construction and structural applications.

11. CSA G40.21:

Grade 260W & 300W: These grades provide varying strength levels for structural steel applications, meeting specific yield strength requirements.

12. ASTM A139:

Grade C & D: Suitable for conveying gas, water, and oil, with Grade D offering higher tensile strength for more demanding applications.

13. EN 10219:

S275J0H & S355J0H: These grades are used in structural applications with different levels of strength and toughness.

14. EN 10210:

S275J2H & S355J2H: These grades are designed for structural hollow sections, offering high strength and good weldability.

15. KS D 3566:

SHS & RHS: Square and Rectangular Hollow Section pipes designed for various structural applications, providing flexibility in design and construction.

16. GB/T 3091:

Q195, Q235, Q345: These grades offer different levels of strength and weldability for structural and general applications.

17. ASTM A671 & ASTM A672:

Various grades: These grades are suitable for various temperature and pressure applications, offering good impact properties and weldability.

18. API 5L Grades:

API 5L X80, X100, X120: These high-strength grades are designed for demanding applications in oil and gas transportation, offering excellent resistance to pressure and high temperatures.

19. EN 10208:

L245GA & L360GA: Suitable for gas and oil transmission pipelines, offering good weldability and corrosion resistance.

20. ISO 3183:

L450: A grade designed for high-pressure gas and oil transmission pipelines, providing superior strength and toughness.

21. JIS G3457:

STPY400 & STPY41: Known for their good ductility and weldability, making them suitable for high-pressure gas piping applications.

22. DIN 2458:

St37-2, St44-2, St52-3: These grades offer varying levels of strength and formability, making them ideal for different structural applications.

23. KS D 3566:

SHS & RHS: Hollow section pipes providing structural versatility and strength for a wide range of construction and infrastructure projects.

24. GB/T 9711:

L245, L290: These grades are suitable for medium-pressure fluid transportation applications, offering a balance of strength and formability.

25. ASTM A252:

Grades 1 to 3: Designed for deep foundation applications, marine structures, and other projects requiring high load-bearing capacity and durability.

26. ASTM A671/A672:

Various grades: These grades offer good corrosion resistance and are suitable for conveying various fluids at different temperatures and pressures.

These SSAW steel pipe grades offer a range of features including good weldability, formability, strength, corrosion resistance, and suitability for specific applications in industries such as construction, oil and gas, infrastructure, and structural engineering. The selection of the appropriate grade depends on factors such as operating conditions, load requirements, and environmental considerations.