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BASIC INFORMATION

ASTM A501 STEEL PIPE

Standard: ASTM A501
Grade: GR.A, GR.B, GR.C

Size: SQUARE:20*20 --1200*1200MM

RECTANGULAR:20MMX30MM -- 1500MMX1200MM

Wall thickness: 1.3 -- 50MM

Wall Thickness Tolerance: ±10%

Length: 1 -- 12M, normally 6M/ 12M, also depends on the requirements

Surface treatment: Galvanizing, Black vanish, Carving, Slightly oil painting, PVC clothes cover each bundle ect.

Production capacity: 300000 tons per year

Production delivery time:15 -- 30 days acc to order quantity and sizes

Shipping: Bulk vessel shipment & Container shipment

Brand: LEFIN STEEL

CHEMICAL COMPOSITION

	COMPOSITION, %
	GRADE A		GRADE B,C
	HEAT ANALYSIS	PRODUCT ANALYSIS	HEAT ANALYSIS	PRODUCT ANALYSIS
Carbon(C),max	0.26	0.30	0.22	0.26
Manganese(Mn),max	no requirement	no requirement	1.40	1.45
Phosphorus(P),max	0.035	0.045	0.030	0.040
Sulfur(S),max	0.035	0.045	0.020	0.030
Copper(Cu),min	0.20	0.18	0.20	0.18

PHYSICAL REQUIREMENT

ASTM A501 Tensile and Impact Requirements
	Wall Thickness	GRADE A		GRADE B		GRADE C
TENSILE STRENGTH,min	All	58000psi	400MPa	65000psi	448MPa	70000psi	483MPa
	WT≤25mm	39000psi	270MPa	46000psi	315MPa	50000psi	345MPa
	25mm＜WT≤50mm	38000psi	260MPa	45000psi	310MPa	49000psi	340MPa
YIELD STRENGTH，min	50mm＜WT≤76mm	36500psi	250MPa	42500psi	290MPa	47500psi	330MPa
	76mm＜WT≤100mm	35000psi	240MPa	40000psi	280MPa	46000psi	315MPa
ELONGATION,min		25%		24%		23%

Differences in application of ASTM A501 steel grades:

Grade A

Usually used for general structural purposes where moderate strength is required, suitable for non-critical structural components and where high load carrying capacity is not required.

Grade B

Because of its high strength and good mechanical properties, it is widely used in bridge construction, bolted structures and riveted structures, suitable for the manufacture of large machinery frames and aircraft fuselage structures, which require high strength and toughness to withstand high pressure and harsh environmental conditions.

Grade C

Grade C requires higher strength than Grade B and is typically used in heavy structural applications where the highest load carrying capacity is required.

Summary

Grade A offers a balance of strength and ductility, making it suitable for a wide range of applications. Grade B, with its high strength, good weldability and corrosion resistance, is indispensable in bridge construction and heavy duty applications. Grade C is suitable for the most demanding applications due to its higher strength. Each steel grade has its own unique advantages and application areas, and the choice of the right steel grade depends on the specific engineering requirements and environmental conditions.

How to select the right steel pipe according to ASTM A501 steel grade?

1. Yield and tensile strength:

The ASTM A501 standard consists of three grades: Grade A, Grade B, and Grade C, which differ primarily in yield strength and tensile strength. Grade A has a minimum yield strength of 36,000 psi (about 250 MPa), Grade B 50,000 psi (about 345 MPa), and Grade C 55,000 psi (about 380 MPa).

2. Application scenario and structure requirements:

- Selected according to the specific requirements of the project and the structural application scenario. For example, Grade A is suitable for general structural uses where moderate strength is required and suitable for non-critical structural components. Grade B and Grade C, due to their higher yield strength and tensile strength, are suitable for structures that withstand greater loads and more demanding environmental conditions.

3. Welding performance:

- Consider the weldability of the steel pipe. Grade A may have better weldability due to its lower carbon content, which is very important for parts that need to be welded.

4. Environmental conditions:

- Select the appropriate steel grade according to the use environment. For example, for structures exposed to corrosive environments, it may be necessary to select a steel grade with better corrosion resistance.

5. Cost effectiveness:

- Consider cost effectiveness. Grade A may have a cost advantage due to its lower strength requirements, while Grade B and Grade C may also be more expensive despite their higher strength.

6. Availability and Supply chain:

- Consider supply chain and material availability. Some steel grades may be more readily available in specific areas, which can affect the project's schedule and cost.

7. Design and specification requirements:

- Comply with design specifications and industry standards. Certain industries or regions may have specific design and code requirements that will guide the selection of the appropriate steel grade.

Taking the above factors into consideration, the most suitable ASTM A501 steel grade steel pipe can be selected according to the specific engineering needs, cost budget and environmental conditions.

ASTM A501 STEEL PIPE

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