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GB/T 4172-2000 Mechanical properties and technological properties of weathering steels for welded structures
GB/T 4172-2000 Mechanical and Process Properties of Weathering Steel for Welded Structures
This national standard (GB/T 4172-2000), Mechanical and Process Properties of Weathering Steel for Welded Structures, is a technical standard specified by the National Standardization Administration Committ......
1168 
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GB/T912-1989 Carbon structural steel and low alloy structural steel hot rolled sheet and strip
GB/T912-1989 Hot-rolled carbon structure and low alloy steel plate and strip
GB/T912-1989 is a technical specification issued by Chinas National Standardization Management Committee specifically for hot-rolled carbon structure and low alloy steel plate and strip. It regulates the requirements, te......
ASTM A638M-1995 Precipitation-Hardening Iron-Based Super Sherkin Bars, Forgings, and Billets for High-Temperature Services
ASTM A638M-1995 High-Temperature Precipitation Hardening Iron-Based Supermartensitic Rods, Forgings, and Billets
ASTM A638M-1995 is an international standard for precipitating hardening iron-based supermartensitic rods, forgings and billets. This specification covers UNS S44600 and S44800 grade......
37CrNi3
GB/T 1220-2007, High-quality carbon structural steel, is one type of steel that has been widely used in various industries over the years. This type of steel is made from a blend of iron and carbon, with other elements and alloys added to create different grades. GB/T 1220-2007 is suitable for a v......
product technical standards
Technical Standard of Product
Introduction
Technical standards are formalized sets of criteria or specifications. They are developed and adopted to help improve product quality, safety and environmental practice, reduce trade barriers, and encourage interchangeability and compatibility of relate......
High saturation magnetic induction soft magnetic alloy (GB/T15002-1994)
Analysis on Magnetic Properties of Soft Magnetic Alloys
Introduction
Soft magnetic alloy is a kind of alloy made by introducing aluminum, iron, cobalt, nickel, copper or other elements into copper. As an important functional material, its magnetic properties directly affect the performance of el......
Processed Copper - Chemical Composition and Product Shape GB 5231-85
Metallurgy of Copper
Copper is one of the oldest and most important metals ever used by man. Its malleability and ductility have seen it be used a wide range of applications and the fact that is can be recycled safety, makes it a very important material in modern society. This essay looks at the ......
GB 1499-91 Rebar for Reinforced Concrete with Waste Heat Treatment
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Heat Treatment of Steel Reinforcement for Reinforced Concrete
Heat treatment of steel reinforcement is necessary when constructing reinforced concrete components. This process is used to improve the performance of the concrete component, by enhancing the properties of the steel reinforcement. T......
Constant elastic alloys 3J53 and 3J58 for frequency components (YB/T5254-1993)
， 题目：A comparative study of two shape memory alloy materials -3J53 and 3J58（YB/T5254-1993）
Shape Memory Alloy (SMA) is a recent technology that has significant potential for use in the next generation of smart materials. This technology has been steadily gaining traction due to its remarkabl......
Alloy structural steel bars for steam turbine bolts (YB/T158-1999)
Turbine bolt alloy steel bar (YB/T158-1999) Introduction
Turbine bolt alloy steel bar, also known as turbine rotor head bolt steel bar, is an important material widely used in the power industry. It is mainly used as a connecting bolt in turbines, generators and other high-speed and heavy-duty ro......
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