ASTM A6/A6M
General delivery requirements for structural steel
Steel Grades: （通用标准，无独立牌号，配合其他标准使用）
This document outlines the general requirements for ordering and delivering various steel structure bars, plates, sections, and sheet piles. It covers dimensional tolerances, shape deviations, inspection and testing, and marking, and is designed to work in conjunction with material standards such as A36, A572, and A992. It provides a unified basis for design, procurement, and quality inspection, and is widely used in the selection and acceptance of materials for building, bridge, and industrial
ASTM A36/A36M
Carbon structural steel profiles
Steel Grades: A36 (W型/S型/C型/L型等各类型钢)
Widely used in steel structural frames for industrial and civil buildings, factory and warehouse skeletons, bridge components, and equipment supports; various hot-rolled steel sections can be combined to form beams, columns, and trusses. With moderate strength and good cutting, welding, and bolting performance, it is suitable for cost-sensitive load-bearing and non-load-bearing structural components without special low-temperature or high-strength requirements, and is one of the most widely used
ASTM A572/A572M
High-strength low-alloy structural steel profiles
Steel Grades: Gr.42, Gr.50, Gr.55, Gr.60, Gr.65 (W型/S型/C型/L型等)
Widely used in bridge main beams, steel structure frames of factories and high-rise buildings, as well as high-load-bearing components such as lifting equipment, power transmission towers, and construction machinery. Various types of high-strength steel can be combined to form beams, columns, and trusses, reducing cross-section and self-weight under the same load. With its high strength and good weldability, it is suitable for building, bridge, and mechanical structures that require both strengt
ASTM A992/A992M
W-shaped steel for building structures
Steel Grades: A992 (W型钢专用)
Primarily used in steel beams and columns of high-rise and multi-story buildings, as well as the main load-bearing components of large-span factories and heavy steel structure buildings, H-beams are also widely used in seismic-resistant frame structures. With their efficient cross-sectional properties, controlled yield strength ratio, and good plasticity and weldability, wide-flange H-beams achieve a balance between load-bearing capacity and seismic resistance, making them a widely used main ste
ASTM A709/A709M
Structural steel profiles for bridges
Steel Grades: Gr.36, Gr.50, Gr.50W, Gr.HPS 50W, Gr.100, Gr.100W, Gr.HPS 100W
Primarily used for main beams, crossbeams, supports, and various load-bearing steel components of highway and railway bridges; weather-resistant grades are suitable for exposed structures requiring no painting or minimal maintenance. With its strength and toughness grading system, and the inclusion of high-performance and weather-resistant varieties, it allows for optimal selection based on span, load, and environment, making it suitable for bridge engineering and steel structure support systems
EN 10025-2
Non-alloy structural steel hot-rolled sections
Steel Grades: S185, S235JR, S235J0, S235J2, S275JR, S275J0, S275J2, S355JR, S355J0, S355J2, S355K2
Widely used in load-bearing components such as steel structural frames of factories and multi-story buildings, bridges, engineering machinery and equipment supports, various types of steel can be combined to form beams, columns and trusses, among which S235 and S355 are the most widely used. Grades are classified according to strength and impact toughness, allowing selection based on stress and operating temperature. With excellent welding and processing properties, it is suitable for convention
EN 10025-3
Normalized fine-grained structural steel profiles
Steel Grades: S275N, S275NL, S355N, S355NL, S420N, S420NL, S460N, S460NL
Commonly used in welded steel structures, equipment and components operating in low-temperature conditions, pressure vessel auxiliary structures, and load-bearing parts such as offshore platforms where high toughness is required; the NL series is suitable for cold environments, and various types of steel can be combined to form load-bearing frames. With its fine grains providing a strong and tough combination and good weldability, it is suitable for bridges, marine engineering, and heavy machine
EN 10025-4
Thermomechanically rolled fine-grained structural steel profiles
Steel Grades: S275M, S275ML, S355M, S355ML, S420M, S420ML, S460M, S460ML
Widely used in load-bearing components such as high-strength lightweight steel structures, long-span bridges, high-rise and large-space buildings, and wind turbine towers; the ML series is suitable for low-temperature environments, and various types of steel can be combined to form beams, columns, and frames. Thanks to the excellent weldability and strong toughness resulting from its low carbon equivalent, it reduces preheating, improves construction efficiency, and reduces self-weight, making i
EN 10034
Structural steel I-beam shape and dimensional tolerances
Steel Grades: （尺寸标准，无独立牌号）
This tool is applicable to the dimensional and tolerance control of I-beams such as IPE and IPB during design, selection, manufacturing, and delivery. It covers aspects such as cross-sectional dimensions, shape deviations, and acceptance, and is used in conjunction with the EN 10025 material standard. It provides a unified dimensional specification for steel structure design, procurement, and processing, and is widely used in the specification determination and quality acceptance of I-beams in b
EN 10056-1/2
Structural steel equal angle steel - dimensions and tolerances
Steel Grades: （尺寸标准，无独立牌号）
This standard applies to the dimensional and tolerance control of equilateral angle steel during design, selection, manufacturing, and delivery, covering side length, thickness, cross-sectional properties, and shape deviations, and is used in accordance with the EN 10025 material standard. It provides a unified dimensional specification for the selection of connectors, supports, truss web members, and tower components in steel structures, and is widely used for determining the specifications and
EN 10067
Structural steel channel steel - dimensions and tolerances
Steel Grades: （尺寸标准，无独立牌号）
This standard is applicable to the dimensional and tolerance control of UPE, UPN, and other channel steels during design, selection, manufacturing, and delivery, covering aspects such as cross-sectional dimensions, shape deviations, and acceptance. It is used in accordance with the EN 10025 material standard. It provides a unified dimensional specification for the selection of beams, purlins, connections, and support components in building and industrial steel structures, and is widely used for
JIS G3192
Hot-rolled steel section shape and dimensional tolerances
Steel Grades: （尺寸标准，无独立牌号）
This standard is applicable to the dimensional and tolerance control of hot-rolled steel sections such as H-beams, I-beams, channel steel, and angle steel during design, selection, manufacturing, and delivery. It covers cross-sectional dimensions, shape deviations, and quality acceptance, and is used in conjunction with JIS G3101 and G3106 material standards. It provides a unified dimensional specification for steel section selection in building, bridge, and industrial steel structures, and is w
JIS G3101
General structural steel
Steel Grades: SS330, SS400, SS490, SS540
Widely used in general building structures, mechanical equipment frames, secondary bridge components, factory skeletons, and other general steel structures, various types of steel can be combined to form beams, columns, and supports, with SS400 being the most commonly used. It is also used for components such as supports, connectors, and platforms. Due to its moderate strength, good formability and cutting performance, and economy, it is suitable for conventional structural applications where bo
JIS G3106
Welded structural steel
Steel Grades: SM400A, SM400B, SM400C, SM490A, SM490B, SM490C, SM490YA, SM490YB, SM520B, SM520C, SM570
Widely used in load-bearing components such as bridges, ships and marine structures, welded building structures, engineering machinery, and storage tanks, various types of steel can be combined to form beams, columns, and trusses. Grades are classified according to strength and impact toughness, allowing selection based on stress and operating temperature; Grade C offers better low-temperature performance. With its excellent weldability and strength-toughness combination, it is suitable for stru
JIS G3136
Rolled steel for building structures
Steel Grades: SN400A, SN400B, SN400C, SN490A, SN490B, SN490C, SN490Y, SN520B, SN520C
Primarily used in the steel structures of high-rise and super high-rise buildings, beams, columns, and joints of seismic-resistant frames, large-span buildings, and heavy industrial buildings—load-bearing components requiring seismic resistance. Various types of steel can be combined to form ductile frames. Grade C exhibits thickness-direction properties, making it suitable for important thick-walled joints. With its controlled yield strength ratio, good plasticity, and weldability, it can stabl
