20# Seamless steel black pipe ASTM A106/API 5L/ASTM A106 GR.B

20# Seamless steel black pipe ASTM A106/API 5L/ASTM A106 GR.B

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 1000 m.t./month

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1. Commodity Name: Seamless steel pipe

2. Standard: API,GB,ASTM,ASME,DIN

3. Quality grade: 10#, 20#, A106B, A53B, API 5L B, Q235, Q345, ST37-2, ST 45, ST52.etc.

4. Dimension:

OD: 1/2"-24"

WT: 2.5-80mm, SCH10~SCH40~XXL

length: 5.8m,6m,8m,9m,12m

5. Technique: Hot Rolled/Cold Rolled/ Cold Drawn

6. application

carbon seamless steel pipes are widely used in gas, water and oil, transpotation;constructions;Bridge,highway,windows of model steel door; building materials;fences;heating facilities Fluid Pipe;conduit pipe,scaffolding pipe.etc.

7. Payment Terms: L/C D/A D/P T/T

8.packing and shipment

Packaged in bundles,as per customers' requirements, it can also bepackagesd as beveled ends, typed marking, black painting, plastic caps protection,woven bags packing

For 20" container the max length is 5.8m; For 40" container the max length is 12m. other options are available based on customer requests. Please discuss when placing orders.

9. Surface: painted with varnish;

10. Plastic caps at ends.

11. Tolerance: OD +1%/-1%

WT +12.5%/-10%

12. Chemical composition:

Models of Steel Pipes	Chemical Component
Steel 20 (ASTM A106B)	C	Si	Mn	P	S	Cu	Ni	Cr
Steel 20 (ASTM A106B)	0.17~0.24	0.17~0.37	0.35~0.65	0.035max	0.035max	0.25max	0.25max	0.25max
Steel45 (ASTM 1045)	0.42~0.50	0.17~0.37	0.50~0.80	0.035max	0.035max	0.25max	0.25max	0.25max
16Mn(Q345B)	0.12~0.20	0.20~0.55	1.20~1.60	0.035max	0.035max	0.25max	0.25max	0.25max
45Mn2 ( ASTM1345)	0.42~0.49	0.17~0.37	1.40~1.80	0.035max	0.035max	0.3max	0.3max	0.30max

Q: Can steel pipes be threaded?: Yes, steel pipes can be threaded.

Q: Can steel pipes be used for conveying chemicals?: Yes, steel pipes can be used for conveying chemicals. Steel is a strong and durable material that can withstand high pressure and temperature conditions, making it suitable for transporting various chemicals. Additionally, steel pipes have excellent resistance to corrosion, which is crucial when dealing with corrosive substances. They are commonly used in industries such as oil and gas, chemical processing, and water treatment where the safe and efficient transport of chemicals is essential. However, it is important to consider the specific requirements of the chemical being conveyed and ensure that the steel pipe is compatible with it. Proper material selection, including the use of corrosion-resistant coatings or linings, may be necessary to prevent any adverse reactions between the chemicals and the steel pipe.

Q: How are steel pipes used in water transportation?: Steel pipes are commonly used in water transportation as they are durable, strong, and resistant to corrosion. These pipes are used to transport water from sources such as reservoirs, treatment plants, or wells to different areas for domestic, industrial, or agricultural purposes. Steel pipes ensure the safe and efficient flow of water, preventing leakage and contamination, and are often buried underground or used in above-ground pipelines for long-distance water transportation.

Q: What are the different types of thread connections used in steel pipes?: There are several types of thread connections commonly used in steel pipes, including tapered threads such as NPT (National Pipe Taper), which are designed to create a tight seal, and straight threads like NPS (National Pipe Straight), which are often used for mechanical applications. Additionally, some other types of thread connections used in steel pipes include BSP (British Standard Pipe), which is widely used in Europe, and API (American Petroleum Institute) threads, which are commonly used in the oil and gas industry.

Q: What are the different threading options for steel pipes?: The different threading options for steel pipes include tapered pipe threads (NPT/NPTF), straight pipe threads (NPS/NPSM), and mechanical threads (such as API threads). These threading options provide different levels of sealability, compatibility, and ease of installation, allowing for a variety of applications and connections.

Q: How are steel pipes used in industrial manufacturing processes?: Steel pipes are commonly used in industrial manufacturing processes for various purposes such as transporting fluids, gases, and solids, as well as providing structural support. They are used in industries like oil and gas, construction, automotive, and chemical manufacturing. Steel pipes offer high durability, strength, and resistance to corrosion, making them ideal for handling harsh environments and high-pressure applications. Additionally, they can be easily welded, bent, and manipulated to fit specific requirements, allowing for efficient and cost-effective installations.

Q: Are steel pipes suitable for wastewater pumping stations?: Yes, steel pipes are suitable for wastewater pumping stations. Steel pipes are known for their durability and strength, making them an excellent choice for handling the harsh conditions and high-pressure requirements of wastewater pumping stations. They have the ability to withstand the corrosive nature of wastewater and can resist damage caused by chemicals and other aggressive substances commonly found in wastewater. Additionally, steel pipes are available in various sizes and thicknesses, allowing for customization to meet the specific needs of the pumping station. Furthermore, steel pipes can be easily welded and joined together, ensuring a secure and leak-free system. Overall, steel pipes offer a reliable and long-lasting solution for wastewater pumping stations.

Q: Can steel pipes be painted or coated?: Yes, steel pipes can be painted or coated. Painting or coating steel pipes is a common practice to protect them from corrosion, improve their appearance, or to meet specific industry requirements. The process involves cleaning the pipes to remove dirt, grease, and rust, followed by applying a primer and then the desired paint or coating. The choice of paint or coating depends on the intended use of the pipes. For example, epoxy coatings are often used for water or wastewater pipelines, while high-temperature resistant coatings are applied to pipes used in industrial settings. Overall, painting or coating steel pipes can enhance their durability and performance.

Q: Can steel pipes be used for paper mills?: Yes, steel pipes can be used for paper mills. Steel pipes are often used in paper mills for various applications such as transporting water, steam, chemicals, and pulp. They are preferred for their durability, resistance to corrosion, and ability to handle high pressure and temperature conditions commonly found in paper mill operations.

Q: What are the safety precautions to follow when working with steel pipes?: When working with steel pipes, it is important to follow several safety precautions to ensure the well-being of yourself and those around you. These precautions include: 1. Personal Protective Equipment (PPE): Always wear the appropriate PPE when working with steel pipes. This includes safety glasses, gloves, steel-toed boots, and a hard hat. PPE helps protect you from potential hazards such as flying debris, falling objects, and sharp edges. 2. Proper Lifting Techniques: Steel pipes can be heavy and awkward to handle. Always use proper lifting techniques to avoid strain or injury. Bend your knees, keep your back straight, and use your legs to lift the pipes. If a pipe is too heavy to lift on your own, ask for assistance or use mechanical lifting equipment. 3. Secure Working Area: Ensure that the work area is clean, organized, and free from tripping hazards. Keep the floor clear of tools, debris, and other obstructions that may cause accidents. Additionally, barricade or cordon off the work area to prevent unauthorized access and ensure the safety of others. 4. Use Proper Tools and Equipment: Use the right tools and equipment for the job. This includes using wrenches, pipe cutters, and clamps designed specifically for steel pipes. Using improper tools can lead to accidents, damage to the pipes, or faulty connections. 5. Proper Storage: Store steel pipes in a secure and organized manner to prevent them from falling or rolling onto someone. Stack the pipes in a stable position, and use racks or supports to ensure they are not at risk of toppling over. 6. Secure Connections: When joining steel pipes, ensure that the connections are properly secured. This includes using appropriate fittings, tight fasteners, and following the recommended torque specifications. Loose or improperly secured connections can result in leaks, bursts, or other failures. 7. Proper Ventilation: If working in an enclosed space, ensure adequate ventilation to prevent the buildup of harmful gases or fumes. Welding or cutting steel pipes can release hazardous gases, so make sure the area is properly ventilated or use respiratory protection if necessary. 8. Fire Safety: Steel pipes can become extremely hot during welding or cutting processes. Have fire extinguishers readily available and know how to use them. Clear any flammable materials from the work area and be cautious of sparks or open flames. 9. Regular Inspections: Regularly inspect steel pipes for signs of damage, such as cracks, rust, or degradation. Replace any damaged or compromised pipes to avoid potential failures or accidents. By following these safety precautions, you can minimize the risks associated with working with steel pipes and ensure a safe working environment. Remember, safety should always be the top priority.

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