Product Description

HOT WORK TOOL STEEL**-AISI H*3, DIN1.***4, JIS SKD*1, ASSAB ***7, GB 4Cr5MoSiV1


H*3 Hot WorkTool Steel is a versatile chromium-molybdenum hot work steel.

>  it widely used in hot work and cold work tooling applications.

>  It resists thermal fatigue cracking which occurs as a result of cyclic heating and cooling cycles in hot work tooling applications.

>  Its excellent combination of high toughness and resistance to thermal fatigue cracking (also known as heat checking) H*3 is used for more hot work tooling applications than any other tool steel.

>  With good stability in heat treatment, H*3 is also used in a variety of cold work tooling applications. In these applications, H*3 provides better hardenability (through hardening in large section thicknesses) and better wear resistance than common alloy steels.

>  Also available as Electro-Slag-Remelted (ESR) products as well. The remelting processes provide improved chemical homogeneity, refinement of carbide size.

 

Heat Treatment:

Forge: at ***0°C****5°C  Cool slowly and anneal then.

Annealing: at **3°C***8°C;Cool slowly in furnace

Stress Relieving: heat slowly to **6°C***6°C, and then cool in still air.

Hardening: Preheat to **5°C and then heat to ***0°C and hold for *5 to *0 minutes. Air cool (air quench)


APPLICATIONS: Inserts, cores, and cavities for die casting dies, die casting shot sleeves, hot forging dies, extrusion dies, and plastic mold cavities and components that require high toughness and excellent polishability.

 

Chemical Composition (%)
 

Common Size:              Round bars:Dia.*****0mm Plates:Thickness:*****0mm Width:*******0mm,Length:2m*6m.

Delivery condition:       EAF+LF+VD+(ESR), forged, anealed, UT tested, peeled or machined.

Hardness HBW:           <=**5HB

Tolerance:                     0/*2mm

Forging Ratio:               Min 1:4

Surface:                         Rounds: black / grinded / turned    Plates: black / milled

Surface condition:      Cracks,decarburisation,burd spots and similar surface defects just within permissible tolerances.

Grain size:                     ASTM E**2 **8

Inclusion rating:

According to ASTM E*5
 

Or K4 max. *0 according to DIN ****2

UT Grade:                     Sep ******4 Group 3 Class D/d Qualified.

Delivery time:              Within *0 days.

Quality assurance:    ISO***1:***8, IQNet, CQC


Our Advantages:

1. We are a manufacturer with advanced technology,good quality control.

2. Competitive products price and steady supply.

3. Different size range of products for customers' option.

4. Nice advantage in terms of resisting thermal shocking

5. Good performance in checking heat.

6. Samples are free.

7. Welcome to visit our factory at any time.


We are also supplying different kinds of alloy tool steels, including hot work steel, cold work steel, plastic mould steel,alloy steel.Please send us your detailed specifications when inquiring. We will reply you as soon as possible.