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Your ASTM A500 Structural Steel Tubing manufacturer in China
Longma produces and stocks a full range of ASTM A500 Cold formed Welded and Seamless Carbon Steel Structural tubings for welding of bridges and buildings, riveted or bolted structures since 2003, and also certified by API 5L, ISO9001, FPC. Manufacturing method: Seamless, ERW, LSAW, DSAW. Superior construction projects require materials that can withstand numerous environments and a variety of extreme conditions. High strength A 500 carbon steel structural tubing from Longmas provides the high-end framework and skeletal support for projects of all sizes.
- Grades: A,B,C
- Out Diameter: 114.3-1422mm(4″-56″)
- Wall Thickness: 6.02-101.6mm(0.237″-4″)
- Length: 3-12.5 meters
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Our Certifications
Our ASTM A500 Structural Steel Tubing Product List
Longma is one of the leading ASTM A500 Grade A/B/C Steel Tubings manufacturer since 2003.
ASTM A500 Grade B Steel Pipe
ASTM A500 Grade C Steel Pipe
ASTM A500 Gr.B ERW Black Pipe
ASTM A500 Structural Welded Pipe
ASTM A500 Steel Tubes
ASTM A500 Grade A/B/C Hollow Section
ASTM A500 Grade B Steel HSS
ASTM A500 Round Pipe
ASME SA500 carbon steel pipe
Longma is one of the leading ASTM A500 Grade A/B/C Steel Tubings manufacturer since 2003
- Longma is one of the leading ASTM A500 Grade A/B/C Steel Tubings manufacturer since 2003.
- Foundin 2003, specialized in produce ERW, LSAW, DSAW steel pipes with an annual output of 300,000 tons.
- Two factories, 200,000 square meters of plant.
- Advanced production equipment imported from Germany, 16 JCO production lines.
- More than 300 employees and more than 60 technicians provide efficient production operations and technical services.
- API 5L(No. 5L-0685, Expiration date: 16th,Nov,2024), ISO9001, ISO14001, ISO18001, FPC certificates.
- Exports high quality steel pipes to more than 60 countries around the world.
ASTM A500 Structural Steel Tubing Production Line
Annual output of 300,000 tons of LSAW steel pipes, with out diameter Φ406mm- 1626mm (16″ – 64″), wall thickness 6.0mm- 75mm (1/4″ – 3″), length 18 meters max.
X-Ray Testing
Ultrasonic Testing
Tack Welding
Plate Ultrasonic Testing
Pipe Forming
Pipe End Bevelling
Mechanical Expansion
Hydrostatic Pipe Testing
Our Advantages For ASTM A500 Structural Steel Tubing
Complete Specifications
Out diameter up to 1422mm, and wall thickness up to 100mm, length up to 18 meters, it can cover the needs of most projects.
Good Quality
Complete quality inspection process and inspection equipments, each steel pipe has a unique code can be traced.
Fast Delivery
Our two factory areas, 16 production lines and multi -specifications of circular production. Fastest delivery time 7 days.
Quick Quotation
Dozens of professional salesmen are responsible for customers in different regions, and can provide accurate quotes within as soon as 1 hour.
Accept Small Quantity Order
Tens of thousands of tons of steel pipe inventory can meet your minimum 1 steel pipe needs.
Complete Certificate
API 5L, ISO9001, ISO14001, ISO18001, FPC, etc. While ensuring product quality, it can help you get more orders.
Technical Data For ASTM A500 Structural Steel Tubing
| Element % | Grades A, B and D | Grace C | ||
|---|---|---|---|---|
| Heat Analysis | Product Analysis | Heat Analysis | Product Analysis | |
| Carbon, max | 0.26 | 0.30 | 0.23 | 0.27 |
| Manganese, max | … | … | 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, when copper steel is specified, min | 0.20 | 0.18 | 0.20 | 0.18 |
| Round Structural Tubing | ||||
|---|---|---|---|---|
| Grade A | Grade B | Grade C | Product Analysis | |
| Tensile strength, mn, ps (MPa) | 45 000 (310) |
58 000 (400) |
62 00 (427) |
58 000 (400) |
| Yield strength, mn, psi (MPa) | 33 000 (228) |
42 000 (290) |
46 000 (317) |
36 000 (250) |
| Elongation in 2 in. (50.8 mm), min, %A | 25B | 23C | 21D | 23C |
| Shaped Structural Tubing | ||||
| Tensile strength, mn, ps (MPa) | 45 000 (310) |
58 000 (400) |
62 00 (427) |
58 000 (400) |
| Yield strength, mn, psi (MPa) | 39 000 (269) |
46 000 (317) |
50 000 (345) |
36 000 (250) |
| Elongation in 2 in. (50.8 mm), min, %A | 25B | 23C | 21D | 23C |
Wall Thickness Tolerance: ±10% of normal wall thickness.
Typical Uses
- Structural Supports
- Building columns
- Highway Signs
- Oil Field Services
- Communication Towers
FAQs
Frequently Asked Questions
Here are some common questions and answers. If you still have questions, don’t hesitate to contact us.
1. What is ASTM A500 specification?
ASTM A500 (Also known as A-500) carbon steel tubing is a standard specification for cold-formed welded and seamless carbon steel structural tubing in round, square and rectangular shapes. ASTM A500 is the most common specification in North America for Hollow Structural Sections (HSS).
2. What is the difference between ASTM A36 and ASTM A500 steel?
The main difference between A36 and A500 steel is their chemical composition. A36 steel has a carbon content of less than 0.3%, while A500 steel has a carbon content of 0.2% to 0.26%. This means A500 steel is slightly more robust and durable than A36 steel.
3. What is the difference between Grade B and Grade C ASTM A500?
QUALITY AND YIELD STRENGTH
Structures designed with A500 require less steel by weight; the cost-saving implications are clear. In addition, Grade B has been replaced by Grade C (which has a yield strength approximately 10% higher) as the most common grade for A500 HSS with no cost implications.4. What is ASTM A500 steel used for?
Grade B: A500 grade B steel pipe is primarily used for general structural purposes, such as columns, beams, and other load-bearing applications. It has a minimum yield strength of 46,000 psi (or 315 MPa) and a minimum tensile strength of 58,000 psi (or 400 MPa).
5. What are the advantages of ASTM A500 carbon steel structural pipe?
ASTM A500 Carbon Steel Structural Tubing provides several advantageous qualities that make it a highly sought after construction material for structural load bearing applications. Some of the most recognizable beneficial qualities that A500 Carbon Steel Structural Tubing provides includes:
excellent weldability, good machinability, can be cold worked, aesthetically pleasing.6. Is ASTM A500 weldable?
It has a minimum yield strength of 46,000 psi and a minimum tensile strength of 58,000 psi, making it a strong and durable material. Additionally, it is easy to weld, cut, form, and machine. The normal use cases for ASTM A500 include structural applications, such as buildings, bridges, and highways.
Featured Case For ASTM A500 Structural Steel Tubing
API 5L PSL2 X70M LSAW Pipe
- Size: 914.4*22.23*12000MM
- Country: Agentina
- Client say: This is not our first cooperation, Longma’s product quality and service has always been very good, which is the reason why we continue......
APL 5L PSL1 B LSAW Pipe
- Size: 813*10mm
- Country: Georgia
- Client say: The delivery time I asked for was very short, but they always finished on time. They have very strong organizational and coordination skills. ......
EN10210 S355J2H Hollow Section
- Size: 815mm*100mm
- Country: Poland
- Client say: The steel pipes I purchased are used for equipment manufacturing and special engineering, which have extremely strict requirements for product quality. The production......
ASTM A691 1-1/4Cr Cl22 EFW Steel Pipe
- Size: 508*20.62mm
- Country: Singapore
- Client say: Although our order quantity is not large, Longma has been very diligent to help us complete the production and provide relevant documents.
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