Jinxi Steel Industry Group Co.Ltd.
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 1000000 |
| Delivery Time | 7 dyas |
| Packaging Details | Package with new steel straps 3+2+3, with 2 slings per package for lifting |
| Product Name | Carbon Steel Square Tube, Square Carbon Hollow Section, Square Hollow Section |
| Black Annealed Hollow Sections Standard | ASTM A500 |
| Black Annealed Hollow Sections Tube Type | Welded and Seamless |
| Black Annealed Hollow Sections OD | Square Hollow Section: 10mm*10mm - 500mm*500mm |
| Black Annealed Hollow Sections Thickness | 0.5mm - 20mm |
| Black Annealed Hollow Sections Length Range | 5.8/6/11.8/12/18 meters |
| Brand Name | Jinxi Pipe |
| Model Number | Hollow Section |
| Certification | ISO 9001,BV,SGS,TUV,CE |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram | Supply Ability | 1000000 |
| Delivery Time | 7 dyas | Packaging Details | Package with new steel straps 3+2+3, with 2 slings per package for lifting |
| Product Name | Carbon Steel Square Tube, Square Carbon Hollow Section, Square Hollow Section | Black Annealed Hollow Sections Standard | ASTM A500 |
| Black Annealed Hollow Sections Tube Type | Welded and Seamless | Black Annealed Hollow Sections OD | Square Hollow Section: 10mm*10mm - 500mm*500mm |
| Black Annealed Hollow Sections Thickness | 0.5mm - 20mm | Black Annealed Hollow Sections Length Range | 5.8/6/11.8/12/18 meters |
| Brand Name | Jinxi Pipe | Model Number | Hollow Section |
| Certification | ISO 9001,BV,SGS,TUV,CE | Place of Origin | China |
| High Light | construction hollow section ，construction hollow structural section ，welded hollow section | ||
Black Annealed Hollow Sections For Construction
Specifications
Black annealing square steel tube hollow sections are high-performance structural components widely used in construction, manufacturing, and engineering applications. These tubes are made from quality carbon steel that undergoes a specialized heat treatment process known as annealing.
| American Standard | Standard Name |
| A500/A500M | Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes |
Black Annealed Hollow Sections Chemical Composition
Sources American Standard A500 / A500M TABLE 1 Chemical Requirements
| Element | Composition, % | |||
| Grades A, B and D | Grace C | |||
| Heat | Product | Heat | Product | |
| Analysis | Analysis | Analysis | Analysis | |
| Carbon, max A | 0.26 | 0.3 | 0.23 | 0.27 |
| Manganese, max A | 1.35 | 1.4 | 1.35 | 1.4 |
| Phosphorus, max | 0.035 | 0.045 | 0.035 | 0.045 |
| Sulfur, max | 0.035 | 0.045 | 0.035 | 0.045 |
| Copper, min B | 0.2 | 0.18 | 0.2 | 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. |
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Black Annealed Hollow Sections Mechanical Properties
Sources American Standard A500 / A500M TABLE 2 Tensile Requirements
| Round structural tubing | ||||
| Grade A | Grade B | Grade C | Grade D | |
| Tensile strength, min, psi (MPa) | 45,000 (310) | 58,000 (400) | 62,000 (425) | 58,000 (400) |
| Yield strength, min, psi, (MPa) | 33,000 (230) | 42,000 (290) | 46,000 (315) | 36,000 (250) |
| Elongation in 2 in. (50 mm), min, %D | 25A | 23B | 21C | 23B |
| Shaped structural tubing | ||||
| Grade A | Grade B | Grade C | Grade D | |
| Tensile strength, min, psi (MPa) | 45,000 (310) | 58,000 (400) | 62,000 (425) | 58,000 (400) |
| Yield strength, min, psi, (MPa) | 39,000 (270) | 46,000 (315) | 50,000 (345) | 36,000 (250) |
| Elongation in 2 in. (50 mm), min, %D | 25A | 23B | 21C | 23B |
| A Applies to specified wall thicknesses (t) equal to or greater than 0.120 in. (3.05 mm). For lighter specified wall thicknesses, the minimum elongation values shall be calculated by the formula: percent elongation in 2 in. (50mm) = 56t + 17.5, rounded to the nearest percent. For A500M use the following formula: 2.2t + 17.5, rounded to the nearest percent. B Applies to specified wall thicknesses (t) equal to or greater than 0.180 in. (4.57 mm). 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. C Applies to specified wall thicknesses (t) equal to or greater than 0.120 in. (3.05 mm). For lighter specified wall thicknesses, the minimum elongation values shall be by agreement with the manufacturer. D The minimum elongation values specified apply only to tests performed prior to shipment of the tubing. |
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Black Annealed Hollow Sections Manufacturing Process
Black Annealed Hollow Sections Application
Black Annealed Hollow Sections Packing & Loading
Hollow Section is transported in containers
Hollow Section is transported in containers
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Exporter,Trading Company,Seller
Year Established:
1986
Total Annual:
10000000000-30000000000
Employee Number:
100~500
Ecer Certification：
Verified Supplier
Jinxi Steel, a professional manufacturer of steel pipes and fittings, is located in Changsha City. Guided by the scientific development concept, Jinxi Steel will comprehensively reform and develop, adhere to the path of quality and efficiency under the guidance of science and technology, persist in ... Jinxi Steel, a professional manufacturer of steel pipes and fittings, is located in Changsha City. Guided by the scientific development concept, Jinxi Steel will comprehensively reform and develop, adhere to the path of quality and efficiency under the guidance of science and technology, persist in ...
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