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About us
Tianjin lefin Industrial
TIANJIN LEFIN STEEL GROUP containing Tianjin lefin Industrial Co.,Ltd. 、Tianjin lefin steel import & export Co.,Ltd and Tianjin Shengqifeng International Trading Co., Ltd. -
Products
Steel Pipe Processing
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard -
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Service Capability
Guarantee Quality
Our steel pipes are suitable for oil, natural gas, shipbuilding, chemical industry, water conservancy, electrical, steel structure, construction and other related fields.
- Details
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STEEL ANGLE is a common metal profile widely used in construction, machine building, Bridges, and other engineering fields. The following is a detailed introduction to the Angle steel:
Definition and structure
Basic definition:Angle steel is a long strip of steel with an "L" shape in cross section, consisting of two perpendicular sides (called "legs"), forming a 90-degree Angle between the legs.
Categories:
• Equilateral Angle: the legs are equal in length (e.g. 50 x 50 x 5mm).
• Unequal Angle steel: the length of the legs is different (e.g. 60×40×5mm).
• Parameters: Usually the leg width (side length), leg thickness and length as specification parameters (such as: 50×50×6mm).Main use
• Building structure: used for house frame, roof support, beam and column connection, etc.
• Mechanical manufacturing: used as equipment support, frame or reinforcement.
• Bridge engineering: for trusses, support structures or connections.
• Daily application: shelves, guardrail, door and window frame, etc.Manufacturing process
Hot rolled Angle steel:through high temperature rolling process molding, rough surface, high strength, suitable for heavy duty structure.
Cold-formed Angle steel:made of bending steel plate at normal temperature, smooth surface, high dimensional accuracy, but low bearing capacity.
Materials and standards
Common materials:
• Carbon steel (e.g. Q235, A36).
• Low alloy steel (e.g. Q345, SS400).
• Stainless steel (such as 304, 316) or aluminum alloy (lightweight scenarios).
International standards:
• China: GB/T 706-2016.
• USA: ASTM A36, ASTM A572.
• Europe: EN 10056.
• Japan: JIS G3192.Strengths
• High strength: good compressive and bending resistance.
• Easy to process: welding, drilling, cutting or bending.
• Economy: Low cost, suitable for large-scale use.
• Flexible installation: Quick connection by bolting or welding.Selection precautions
• Load requirements: Select leg width and thickness according to the force.
• Environmental factors: Choose stainless steel or galvanized Angle steel for humid or corrosive environment.
• Connection mode: Reserved process space for welding or bolted connection.
• Standard matching: It must comply with the engineering specifications of the project location.Market and production
• Main production: China is the world's largest Angle steel producer, followed by Japan, Germany, the United States and so on.
• Price factors: affected by steel market price fluctuations, specifications, materials and surface treatment (such as galvanized).Sum up
Angle steel is one of the basic materials in engineering and manufacturing industry because of its simple structure and wide use. When selecting a model, factors such as strength, environment and cost should be considered comprehensively, and the design should be combined with specific standards. If you need more in-depth details (such as mechanical properties, specific application cases, etc.), you can explore further!
STEEL ANGLE
Subcategory
Keyword
- Details
-
STEEL ANGLE is a common metal profile widely used in construction, machine building, Bridges, and other engineering fields. The following is a detailed introduction to the Angle steel:
Definition and structure
Basic definition:Angle steel is a long strip of steel with an "L" shape in cross section, consisting of two perpendicular sides (called "legs"), forming a 90-degree Angle between the legs.
Categories:
• Equilateral Angle: the legs are equal in length (e.g. 50 x 50 x 5mm).
• Unequal Angle steel: the length of the legs is different (e.g. 60×40×5mm).
• Parameters: Usually the leg width (side length), leg thickness and length as specification parameters (such as: 50×50×6mm).Main use
• Building structure: used for house frame, roof support, beam and column connection, etc.
• Mechanical manufacturing: used as equipment support, frame or reinforcement.
• Bridge engineering: for trusses, support structures or connections.
• Daily application: shelves, guardrail, door and window frame, etc.Manufacturing process
Hot rolled Angle steel:through high temperature rolling process molding, rough surface, high strength, suitable for heavy duty structure.
Cold-formed Angle steel:made of bending steel plate at normal temperature, smooth surface, high dimensional accuracy, but low bearing capacity.
Materials and standards
Common materials:
• Carbon steel (e.g. Q235, A36).
• Low alloy steel (e.g. Q345, SS400).
• Stainless steel (such as 304, 316) or aluminum alloy (lightweight scenarios).
International standards:
• China: GB/T 706-2016.
• USA: ASTM A36, ASTM A572.
• Europe: EN 10056.
• Japan: JIS G3192.Strengths
• High strength: good compressive and bending resistance.
• Easy to process: welding, drilling, cutting or bending.
• Economy: Low cost, suitable for large-scale use.
• Flexible installation: Quick connection by bolting or welding.Selection precautions
• Load requirements: Select leg width and thickness according to the force.
• Environmental factors: Choose stainless steel or galvanized Angle steel for humid or corrosive environment.
• Connection mode: Reserved process space for welding or bolted connection.
• Standard matching: It must comply with the engineering specifications of the project location.Market and production
• Main production: China is the world's largest Angle steel producer, followed by Japan, Germany, the United States and so on.
• Price factors: affected by steel market price fluctuations, specifications, materials and surface treatment (such as galvanized).Sum up
Angle steel is one of the basic materials in engineering and manufacturing industry because of its simple structure and wide use. When selecting a model, factors such as strength, environment and cost should be considered comprehensively, and the design should be combined with specific standards. If you need more in-depth details (such as mechanical properties, specific application cases, etc.), you can explore further!
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Address: Hengtai Road,Daqiuzhuang Town,Jinghai County,Tianjin,China
Mob: +8615122229899(whatspp)
Phone: +86 22 58171905
Fax: +86 22 58171902
E-mail:info@lefinsteel.com
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