SKD61

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JFS Steel's SKD61 and Steel Machining Service

Ju Feng Special Steel Co., Ltd. is an industrial steel materials, steel parts and steel-related services supplier from Taiwan. Along with steel bars, steel plates and steel tubes supply, steel cutting, drilling, machining and heat treatment services are also provided.

JFS Steel has been offering customers SKD61 Tool Steel and precision steel machining services since 2006. With both highly skilled technology and 47 years experience, JFS Steel always makes sure to meet each customer's demand.


SKD61

Tool Steel

Equivalent Grades: GB 4Cr5MoSiV1, JIS SKD61, ASTM H13, DIN X40CrMoV5-1. SKD61 is the tool steel, mold steel, and middle carbon steel possessing high hardness and wear resistance after heat treatment. It also has the good performance of hardenability and thermal fatigue stability. SKD61 not only supports huge mechanical stress, but also thermal stress during working repeatedly. It is widely used to produce the cutting tools (drilling cutter, circular cutter, scissor, etc.), cold/heat work dies and measuring implements and further to manufacture the pistons, valves, valve seats of fuel pump of diesel engine, and ejector sleeves, punching machine, and other tools which work in high temperature condition.

Chromium hot work tool steels

Purpose

SKD61 is widely used in heat work die steel.

International Comparison of Meterials

EU
EN
INTER  ISOUSA 
AISI
JAPAN
JIS
GERMANY
DIN
CHINA
GB
FRANCE
AFNOR
ITALY
UNI
----H13SKD61X40CrMoV5140CrMoV5Z40CDV5X35CrMoV05KU

SPAIN
UNE
Sweden
SS
Finland
SFS
Poland
PN
Czechia
CSN
Austria
ONORM
Russia
GOST
England
BS
X40CrMoV52242--------4Ch5NF1S

BH13

**This comparison table is for reference only. The standards and grades of various countries have slightly different chemical compositions. Please refer to the database for details.**

Chemical Composition(JIS G4051)

碳(C)%矽(Si)%錳(Mn)%磷(P)%硫(S)%鎳(Ni)%鉻(Cr)%鉬(Mo)%釩(V)%銅(Cu)%
0.33-0.420.8-1.20.2-0.50≦0.030≦0.030≦0.254.5-5.51.0-1.50.8-1.150≦0.25

Conditions of heat treatment

  • Annealing: 820~870℃
  • Hardening: 1000~1050℃ Air Cooling
  • Tempering: 550~650℃ Air Cooling
  • Nitriding: 480~650℃

Criterion for heat treating conditions revise:

  • Ac: 970~918℃
  • Ar: 765~725℃
  • Ms: 280℃

Mechanical properties

Tensile strength (kgf/mm²): ≧980
Yield strength (kgf/mm²): ≧785
Elongation (%): ≧9
Cross section reduction rate (%): ≧45
Impact value (J/cm2): ≧47
Hardness (Hb) : 207

Size Range

ShapeSize(mm)
Round Bar8.2, 9.2, 10.2, 11.2, 12.2, 13.2, 14.2, 15.2, 16.2, 17.2, 18.2, 19.2, 20.2, 22.2, 24.2, 25.2, 26.2, 28.2, 30.2, 32.2, 34.2, 36.2, 38.2, 40.2, 42.2, 44.2, 46.2, 48.2, 51, 56, 61, 66, 71, 76, 81, 86, 91, 96, 101, 111, 121, 131, 141, 151, 161, 171, 181, 191, 201, 211, 221, 231, 241, 251, 261.
Steel Application
  • Drive Shafts - Ju Feng offers the steel material that can be used for drive shaft.
    Drive Shafts

    To allow for variations in the alignment and distance between the driving and driven components, drive shafts frequently incorporate one or more universal joints, jaw couplings. Therefore, they must use the materials which are strong enough to bear the stress, whilst avoiding too much additional weight as that would in turn increase their inertia.The materials of drive shaft we recommend are as below.