ASTM A500 Cold-Formed Welded and Seamless Carbon Steel Pipe

ASTM A500 Carbon Steel Structural Tubing

We are a specialist carbon steel pipe manufacturer. We understand the critical role strong steel pipe plays in keeping a structure safe and durable.

UNIASEN supplies ASTM A500 structural tubing. It is made of carbon steel and comes in different sizes and shapes.

ASTM A500 covers cold-formed welded and seamless carbon steel structural pipes. The performance is:

carbon steel round tube
carbon steel square tube
carbon steel rectangular tube.

They are constructed solidly to last long under harsh conditions. Bridges, buildings and other structural construction often specify them for many structural applications.

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ASTM A500 Grades

ASTM A500 steel pipe has four grades. They are based mainly on chemicals and properties. Each grade is designed for a specific structural application.

Grade A is the most basic level. Grade B is the most popular of the ASTM A500 steel pipe grades. Suitable for a wide range of structural applications.

Choose the right grade and you won’t overspend on unnecessarily high specifications. Here is a detailed introduction to each level:

ASTM A500 Grade A

Grade A is the most basic of the ASTM A500. It is used in simpler applications where cost matters.
It has the lowest yield and tensile strengths among the grades. This makes it good for light structural duties, non-critical uses, or where surface smoothness doesn’t matter.

ASTM A500 Grade B

Grade B is stronger than Grade A.
It is one of the most used grades because it has a good mix of strength and ductility.
It is ideal for structures like building frames and bridges. They have moderate stress.

ASTM A500 Grade C

Grade C is the material of choice for steel pipe designers and engineers. Because Grade C provides a more balanced yield strength and tensile strength and is more cost-effective, it is a more suitable choice for high-stress structural applications.

ASTM A500 Grade D

Grade D offers the highest tensile strength among the ASTM A500 grades. It has a lower yield strength than C but a higher tensile strength. This grade is less common. It is useful where high tensile strength and specific toughness are required.

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Specification

Our ASTM A500 cabon steel pipes come in various dimensions, catering to your specific project needs.

Additionally, we offer machining services to customize your pipes according to your specifications.

Standard: ASTM A500
Procedure: ERW, SMLS, SSAW, LSAW
Dimensions: 13.7mm – 2235mm, 1/4″ – 88″, DN8 – DN400

Thickness: 1.65mm – 25.4mm, SCH 5S -SCH XXS

Unit Length: 1.5 – 18 mtrs
Steel Grade: ASTM A500 Gr. A, ASTM A500 Gr. C, ASTM A500 Gr. B, ASTM A500 Gr. D
Surface Coating: Varnishing, Black, Oiling, Hot Dip Galvanizing
End Type: Square cut, Bevelled, Threaded, Grooved
Joint Method: Fitting, Flange, Coupling, Clamp, Pipe Shoulder, Welding
Pipe Machining: Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

Advantages of ASTM A500 carbon steel pipe Construction

High Strength:

The ASTM A500 carbon steel construction pipes suitable for various of heavy structural applications such as Bridges, buildings and conveying systems.

Good Weldability:

The ASTM A500 carbon steel structure pipe can be easily welded and machined. This makes it more flexible to use during manufacturing and installation compared to other pipes.

Variety of Sizes and Shapes:

It includes round, square, and rectangular shapes. This makes it fit for various engineering and design needs.

Excellent Corrosion Resistance:

Due to its manufacturing materials and processes. ASTM A500 carbon steel structural pipes have good corrosion resistance and are capable of long-term stable operation in harsh environments.

Affordable:

ASTM A500 carbon steel pipe is relatively cheap. It costs less than other materials. This makes it an economic choice for many engineering projects.

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Dimension

Our ASTM A500 Carbon Steel Pipes come in many sizes. They range from small rounds to large rectangles.

Our dimension table fully guides the sizes, wall thicknesses, and weights. It helps you choose the perfect pipe for your project.

Square Hollow Section Thickness： 1.000 in. [25.4 mm] or less
Size (mm)
20 x 20	80 x 80	180 x 180
25 x 25	90 x 90	200 x 200
30 x 30	100 x 100	225 x 225
38 x 38	110 x 110	240 x 240
40 x 40	120 x 120	250 x 250
50 x 50	125 x 125	300 x 300
60 x 60	130 x 130	350 x 350
65 x 65	140 x 140	400 x 400
70 x 70	150 x 150	450 x 450
75 x 75	160 x 160	500 x 500

Rectangular Hollow Section Thickness： 1.000 in. [25.4 mm] or less
Size (mm)
20 x 30	120 x 40	250 x 75
40 x 20	120 x 50	250 x 100
40 x 25	120 x 60	250 x 150
40 x 30	120 x 80	250 x 200
50 x 25	120 x 100	300 x 100
50 x 30	140 x 60	300 x 150
50 x 40	140 x 80	300 x 180
60 x 30	150 x 50	300 x 200
60 x 40	150 x 75	400 x 200
70 x 50	150 x 100	400 x 300
80 x 40	160 x 60	400 x 350
80 x 50	160 x 80	450 x 250
80 x 60	180 x 120	500 x 200
90 x 60	180 x 140	500 x 300
100 x 40	200 x 50	500 x 400
100 x 50	200 x 60	600 x 200
100 x 60	200 x 80	600 x 300
100 x 80	200 x 100	600 x 400

Steel Pipe Dimensions Chart ANSI B36. 10 & 36.19
Nominal Pipe Size		Outside Diameter (mm)	Nominal Wall Thickness Schedule
NPS	DN	OD	SCH 5	SCH 10	SCH 20	SCH 30	SCH STD	SCH 40	SCH 60	SCH XS	SCH 80	SCH 100	SCH 120	SCH 140
1/8	6	10.3	–	1.24	–	1.45	1.73	1.73	–	2.41	2.41	–	–	–
1/4	8	13.7	–	1.65	–	1.85	2.24	2.24	–	3.02	3.02	–	–	–
3/8	10	17.1	–	1.65	–	1.85	2.31	2.31	–	3.20	3.20	–	–	–
1/2	15	21.3	1.65	2.11	–	2.41	2.77	2.77	–	3.73	3.73	–	–	–
3/4	20	26.7	1.65	2.11	–	2.41	2.87	2.87	–	3.91	3.91	–	–	–
1	25	33.4	1.65	2.77	–	2.9	3.38	3.38	–	4.55	4.55	–	–	–
1 1/4	32	42.2	1.65	2.77	–	2.97	3.56	3.56	–	4.85	4.85	–	–	–
1 1/2	40	48.3	1.65	2.77	–	3.18	3.68	3.68	–	5.08	5.08	–	–	–
2	50	60.3	1.65	2.77	–	3.18	3.91	3.91	–	5.54	5.54	–	–	–
2 1/2	65	73	2.11	3.05	–	4.78	5.16	5.16	–	7.01	7.01	–	–	–
3	80	88.9	2.11	3.05	–	4.78	5.49	5.49	–	7.62	7.62	–	–	–
3 1/2	90	101.6	2.11	3.05	–	4.78	5.74	5.74	–	8.08	8.08	–	–	–
4	100	114.3	2.11	3.05	–	4.78	6.02	6.02	–	8.56	8.56	–	11.13	–
5	125	141.3	2.77	3.40	–	–	6.55	6.55	–	9.53	9.53	–	12.70	–
6	150	168.3	2.77	3.40	–	–	7.11	7.11	–	10.97	10.97	–	14.27	–
8	200	219.1	2.77	3.76	6.35	7.04	8.18	8.18	10.31	12.70	12.70	15.09	18.26	20.62
10	250	273.0	3.40	4.19	6.35	7.80	9.27	9.27	12.70	12.70	15.09	18.26	21.44	25.40
12	300	323.8	3.96	4.57	6.35	8.38	9.53	10.31	14.27	12.70	17.48	21.44	25.40	–
14	350	355.6	3.96	6.35	7.92	9.53	9.53	11.13	15.09	12.70	19.05	23.83	–	–
16	400	406.4	4.19	6.35	7.92	9.53	9.53	12.70	16.66	12.70	21.44	–	–	–
18	450	457	4.19	6.35	7.92	11.13	9.53	14.27	19.05	12.70	23.83	–	–	–
20	500	508	4.78	6.35	9.53	12.70	9.53	15.09	20.62	12.70	–	–	–	–
22	550	559	4.78	6.35	9.53	12.70	9.53	–	22.23	12.70	–	–	–	–
24	600	610	5.54	6.35	9.53	14.27	9.53	17.48	24.61	12.70	–	–	–	–
26	650	660	–	7.92	12.70	–	9.53	–	–	12.70	–	–	–	–
28	700	711	–	7.92	12.70	15.88	9.53	–	–	12.70	–	–	–	–
30	750	762	6.35	7.92	12.70	15.88	9.53	–	–	12.70	–	–	–	–
32	800	813	–	7.92	12.70	15.88	9.53	17.48	–	12.70	–	–	–	–
34	850	864	–	7.92	12.70	15.88	9.53	17.48	–	12.70	–	–	–	–
36	900	914	–	7.92	12.70	15.88	9.53	19.05	–	12.70	–	–	–	–
38	950	965	–	–	–	–	9.53	–	–	12.70	–	–	–	–
40	1000	1016	–	–	–	–	9.53	–	–	12.70	–	–	–	–
42	1050	1067	–	–	–	–	9.53	–	–	12.70	–	–	–	–
44	1100	1118	–	–	–	–	9.53	–	–	12.70	–	–	–	–
46	1150	1168	–	–	–	–	9.53	–	–	12.70	–	–	–	–
48	1200	1219	–	–	–	–	9.53	–	–	12.70	–	–	–	–

Nominal Pipe Size		Outside Diameter (mm)	Nominal Wall Thickness
NPS	DN	OD	Nominal Wall Thickness
52	1300	1321	9.53	10.31	11.13	11.91	12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
56	1400	1422	9.53	10.31	11.13	11.91	12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
60	1500	1524	9.53	10.31	11.13	11.91	12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
64	1600	1626	9.53	10.31	11.13	11.91	12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
68	1700	1727	9.53	10.31	11.13	11.91	12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
72	1800	1829	–	–	–	–	12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
76	1900	1930	–	–	–	–	12.7	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
80	2000	2032	–	–	–	–	–	14.27	15.88	17.48	19.05	20.62	22.23	23.83	25.4
84	–	2134	–	–	–	–	–	–	–	–	–	–	–	–	–
88	–	2235	–	–	–	–	–	–	–	–	–	–	–	–	–

Chemical Requirement

Chemical Requirements
Element	Composition, %
	Grades B and D		Grade C
	Heat	Product	Heat	Product
	Analysis	Analysis	Analysis	Analysis
Carbon, maxA	0.26	0.30	0.23	0.27
Manganese, maxA	1.35	1.40	1.35	1.40
Phosphorus, max	0.035	0.045	0.035	0.045
Sulfur, max	0.035	0.045	0.035	0.045
Copper, minB	0.20	0.18	0.20	0.18
A For each reduction of 0.01 percentage point below the speciﬁed maximum for carbon, an increase of 0.06 percentage point above the speciﬁed maximum for manganese is permitted, up to a maximum of 1.50 % by heat analysis and 1.60 % by product analysis. B If copper-containing steel is speciﬁed in the purchase order.

Mechanical Requirement

Tensile Requirements
Round, Square, Rectangular, and Special Tubular Shapes
	Grade B	Grade C	Grade D
Tensile strength, min, psi [MPa]	58 000	62 000	58 000
Tensile strength, min, psi [MPa]	[400]	[425]	[400]
Yield strength, min, psi[MPa]	46 000	50 000	36 000
Yield strength, min, psi[MPa]	[315]	[345]	[250]
Elongation in 2 in. [50 mm], min, %C	23A	21B	23A
A Applies to speciﬁed wall thicknesses (t ) equal to or greater than 0. 180 in. [4.57mm]. For lighter speciﬁed wall thicknesses, the minimum elongation values shall be calculated by the formula: percent elongation in 2 in. [50 mm] = 61t + 12, rounded to the nearest percent. For A500M use the following formula: 2.4t + 12, rounded to the nearest percent. B Applies to speciﬁed wall thicknesses (t ) equal to or greater than 0. 120 in. [3.05mm]. For lighter speciﬁed wall thicknesses, the minimum elongation values shall be by agreement with the manufacturer. C The minimum elongation values speciﬁed apply only to tests performed prior to shipment of the tubing.

ASTM A500 vs A513

Manufacturing Process:

ASTM A500 carbon steel pipe is usually made of cold-drawn or straight welded. ASTM A513 pipe is often cold rolled or cold drawn. This makes ASTM A500 tubing strong and rust-resistant.

Appications:

ASTM A500 carbon steel pipe is mainly used in heavy structures like bridges and buildings. ASTM A513 is more commonly used to make lighter parts for machines and cars.

Size and Shape:

The ASTM A500 offers more sizes and shapes. It includes round, square, and rectangular. The ASTM A513 mainly offers round tubing.

Cost:

The cost of ASTM A500 carbon steel pipe is usually slightly higher than ASTM A513. This is due to differences in manufacturing and use.

In summary, ASTM A500 carbon steel pipe is ideal for many projects. It has great strength, weldability, and corrosion resistance. It also comes in many sizes.

The ASTM A513 also has advantages in some cases. But, the ASTM A500 is a more reliable and cheaper choice for heavy construction.

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