Chromium hot work tool steels / Made in Taiwan Steel Round Bars & Steel Tubes Manufacturer | JFS Steel

Ju Feng provides SKD61, die steel, alloy tool steel, middle carbon alloy steel, high performance hot work tool steel, GB 4Cr5MoSiV1, JIS SKD61, ASTM H13, DIN X40CrMoV5-1. / Professional Steel Supplier & Service Integration.

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SKD61 | Over 47 Years Steel CNC Turning & Milling Services | JFS Steel

Located in Taiwan since 2006, Ju Feng Special Steel Co., Ltd. has been a metal bars and steel tubes manufacturer. Their main steel products, include SKD61, steel bars, steel plates and steel tubes, as well as CNC steel cutting, drilling, machining and heat treatment services.

Ju Feng Special Steel Co., Ltd. (JFS) was originally founded as a construction company 47 years ago, and since 2006 JFS has successfully expanded into the Special Steel Industry, becoming the leading supplier in Taiwan of various kinds of special steel bars, steel plates, and steel tubes as wholesaler or retailer. In recent years, Ju Feng can provide not only material cutting services but also CNC machining services (a complete machining process from raw material to semi-finished or finished product) for our customers around the world. With more than 47 years successfully expanded into the Special Steel Industry which a leading supplier of special steel material in Taiwan.

JFS Steel has been offering customers stainless steel bars and tubes, and precision steel machining services since 2006, both with advanced technology and 47 years of experience, JFS Steel ensures each customer's demands are met.


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 Materials

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)

C(%)Si(%)Mn(%)P(%)S(%)Ni(%)Cr(%)Mo(%)V(%)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
  • Cutting Tools - Ju Feng offers the steel material that can be used for cutting tools.
    Cutting Tools

    There are many types of cutting tools, such as: milling cutters, drills, circular saw blades, reamers, PCD (Polycrystalline Diamond) cutting tools, hole drills, lathe tools, stamping tools, etc. The quality of the cutting tool material will affect the surface quality, cutting efficiency, tool life and other factors. Therefore, the selected tool material should have a high degree of hardness, wear resistance, strength, toughness and heat resistance.The materials for cutting tools application that we recommend are as below.