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Mild Steel Round Solid Bar

Category
Grade
Sizes
Standard
Carbon structure steel
Q195,Q215,Q235,Q275
16mm-250mm
GB/T700-2006
Low alloy high strength structure steel
Q295,Q345,Q390,Q420
Q460
16mm-250mm
GB/T1591-2008
Prime Carbon structure steel
10#,20#,35#,45#,60#
20Mn,65Mn,B2,B3,JM20,
SH45,545C,C45
16mm-250mm
GB/T699-1999
Alloy structure steel
30Mn2,40Mn2,27SiMn,42Crmo,
20Cr,40Cr,20CrMo,35CrMo,
20CrMnTi,30CrMnTi,20MnVB,
20MnTiB,20CrNiMo,Q345B,
35MnBM,40MnB,36Mn2V,
45MnV
16mm-250mm
GB/T3077-1999
Spring Steel
65Mn,60Si2Mn,50CrVA
16mm-250mm
GB/T1222-84
Bearing Steel
GCr15,GCr15GD,55SiMoV
16mm-250mm
GB/T18254-2002
Structural steels
subject to end-quench
hardenability requirements
20CrMnTi,30CrMnTi,20Cr
40Cr,30CrMo,42CrMoA
27SiMn,40Mn2H,20CrNiMo
40Mn2,q345b,35MnBM,40MnB,
45MnV
16mm-250mm
GB/T5216-2004
Oil wells structural steel
37Mn5,36Mn2V
16mm-250mm
Q/LYS248-2007
Marine anchor chain steel
CM490,CM690,M30Mn2
16mm-250mm
YB/T66-1987
GB/T18669-2002
Tool steel
Tool steel can be classified according to chemical composition and use, mainly including the following categories:
Carbon tool steel: This type of steel has a high carbon content, usually between 0.65% and 1.35%. Carbon tool steel has high hardness and wear resistance, but poor red hardness, and is suitable for tools that require high hardness and wear resistance, such as hammers, chisels, etc.
Alloy tool steel: Alloy elements such as chromium, molybdenum, and tungsten are added to carbon tool steel to improve hardenability and hardness. Alloy tool steel is suitable for high-speed cutting tools, molds and other fields, with higher hardness and wear resistance.
High-speed steel: Contains a variety of alloy elements such as tungsten, molybdenum, and cobalt, has extremely high hardness and wear resistance, and is suitable for high-speed cutting tools and forging molds.
Stainless steel: It has excellent corrosion resistance and is suitable for molds, knives, bearings and other fields. Specific application scenarios of different types of tool steel include:
Carbon tool steel: Such as T10A, suitable for hand tools such as hammers and chisels.
‌Alloy tool steel‌: such as SKD11, widely used in large cold working dies and various cold working dies, as well as cutting tools.
‌High speed tool steel‌: such as W18Cr4V, suitable for high speed cutting tools. ‌Stainless steel‌: such as 3Cr13, suitable fordies and cutting tools.l properties, such as stainless steel, heat-resistant steel and wear-resistant steel, etc.


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