Your Reliable Partner For Quality Alloy Steel

Alloy steel referring to low alloy steel is contained with a variety of elements which are added strictly in addition to the carbon.Typical alloyed elements are Molybdenum, Manganese, Nickel, Silicon, Aluminium, Chromium, and Vanadium.They are used to improve its mechanical or physical properties,such as wear resistance,strength, hardenability,corrosion resistance,ductility, formability, weldability and so on.Alloy steel is widely used in oil and gas,aerospace,automotive, wind power and defense industries etc.
AISI 4140+QT Forged round steel
Form of SupplySize(mm)Length(mm)
Round barΦ6-Φ1,0003,000-10,000
Square bar100x100-600x6003,000-6,000
Plate/SheetThickness :20-400
Width:80-1,000
2,000-6,000
Flat bar/BlcoksThickness :120-800
Width:120-1,500
2,000-6,000

process route

1.ASTM A29/A29M:Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought

2.EN10083-3:Steels for quenching and tempering,Part 3:Technical delivery conditions for alloy steels

3.EN10084:case hardening steels -Technical delivery conditions

4.EN10250-3:Open die steel forgings for general engineering purposes-Part 3:Alloy special steels

5.BS970-3:Wrought steel for mechanical and allied engineering purposes-Part 3:Bright bars for general engineering purposes

6.JIS G4105:Chromium Molybdenum Steels

7.JIS G4103:Nickel Chromium Molybdenum Steels

ALLOY STEEL GRADE LIST

AISI / SAEDIN / ENBSJIS / KS
A182 Grade F1113CrMo44/1.7335
A182 Grade F2210CrMo9-10/1.7380
16CrMo44/1.7337SCM415
413025CrMo4/1.7218708A25 / 708M25SCM430
413534CrMo4/1.7220-SCM435
414042CrMo4/1.7225708M40 / EN19SCM440
415050CrMo4/1.7228-SCM445
434034CrNiMo6/1.6582817M40 /EN24 SNCM439
514041Cr4/1.7035530M40SCr440
862020NiCrMo2-2/1.6523805M20SNCM220
984036CrNiMo4/1.6511817A37 / 817M37-
-41CrAlMo7/1.8509EN41BSACM645