FOR REQUIREMENT OF THIS GRADE
OR FOR DETAIL CONTACT US AT :-
ASTM A681 Tool Steel Sheets, Plates & Bars (H10 to P21) – ASTM A681
Standard, Available Grades, Sizes & Specifications
Introduction
ASTM A681
covers tool steels supplied in the form of sheets, plates, bars, billets, and
other mill products intended for tooling and engineering applications requiring
high hardness, excellent wear resistance, superior toughness, and outstanding
dimensional stability. The specification includes a comprehensive range of tool
steel grades designed for water-hardening, cold work, hot work, high-speed,
shock-resisting, mold, and special-purpose tooling applications.
ASTM A681
tool steel products are widely used in the manufacture of cutting tools,
punches, dies, molds, shear blades, rolls, gauges, industrial knives, machine
tools, forging dies, extrusion tools, and precision engineering components. These
steels are capable of maintaining hardness and wear resistance under severe
operating conditions while providing excellent machinability and heat treatment
response.
Due to
their exceptional mechanical properties and versatility, ASTM A681 tool steels
are extensively used in automotive, aerospace, metalworking, plastic molding,
heavy engineering, and industrial manufacturing industries.
Ladhani
Metal Corporation is a manufacturer, supplier, and exporter of ASTM A681 Tool
Steel Sheets, Plates, and Bars, supplying premium-quality tool steel products
for tooling, manufacturing, and industrial engineering applications worldwide.
Applicable Standard
Standard
Specification: ASTM A681
Organization:
ASTM International
Title:
Standard Specification for Tool Steels Alloy
This
specification covers alloy tool steels supplied as bars, forgings, plates,
sheets, and other mill products for tooling and engineering applications.
Forms of Supply
ASTM A681
tool steel products are supplied in the following forms:
• Tool
steel sheets
• Tool steel plates
• Tool steel bars
• Round bars
• Flat bars
• Square bars
• Tool steel blocks
• Billets
• Forged tool steel bars
• Ground bars
• Machined tool steel components
• Custom-sized products
Grades Covered Under
ASTM A681
Cold
Work Tool Steel
• O1
• O2
• A2
• A6
• D2
• D3
• D4
• D5
• D6
• D7
Hot
Work Tool Steel
• H10
• H11
• H12
• H13
• H19
• H21
• H22
• H23
Shock-Resisting
Tool Steel
• S1
• S2
• S5
• S7
Special
Purpose Tool Steel
• L6
• F1
Supply Condition
•
Annealed
• Hot rolled
• Forged
• Cold finished
• Peeled
• Ground
• Machined
• Soft annealed
Surface Finish
• Black
finish
• Hot rolled finish
• Ground finish
• Bright finish
• Machined finish
• Polished finish
Standard Sizes
Sheets and Plates
Thickness:
3 mm to 150 mm
Width:
500 mm to 2500 mm
Length:
Up to 6000 mm
Bars
Diameter:
10 mm to 600 mm
Length:
Up to 6000 mm
Custom
dimensions, machining allowances, and finished components are available
according to customer specifications.
Chemical Composition
of ASTM A681
|
Grade |
Carbon Min |
Carbon Max |
Manganese Min |
Manganese Max |
Phosphorus Max |
Sulfur Max |
Silicon Min |
Silicon Max |
Chromium Min |
Chromium Max |
Vanadium Min |
Vanadium Max |
Tungsten Min |
Tungsten Max |
Molybdenum Min |
Molybdenum Max |
Remarks |
|
H10 |
0.35 |
0.45 |
0.20 |
0.70 |
0.030 |
0.030 |
0.80 |
1.25 |
3.00 |
3.75 |
0.25 |
0.75 |
— |
— |
2.00 |
3.00 |
— |
|
H11 |
0.33 |
0.43 |
0.20 |
0.60 |
0.030 |
0.030 |
0.80 |
1.25 |
4.75 |
5.50 |
0.30 |
0.60 |
— |
— |
1.10 |
1.60 |
— |
|
H12 |
0.30 |
0.40 |
0.20 |
0.60 |
0.030 |
0.030 |
0.80 |
1.25 |
4.75 |
5.50 |
0.20 |
0.50 |
1.00 |
1.70 |
1.25 |
1.75 |
— |
|
H13 |
0.32 |
0.45 |
0.20 |
0.60 |
0.030 |
0.030 |
0.80 |
1.25 |
4.75 |
5.50 |
0.80 |
1.20 |
— |
— |
1.10 |
1.75 |
— |
|
H14 |
0.35 |
0.45 |
0.20 |
0.60 |
0.030 |
0.030 |
0.80 |
1.25 |
4.75 |
5.50 |
— |
— |
4.00 |
5.25 |
— |
— |
— |
|
H19 |
0.32 |
0.45 |
0.20 |
0.50 |
0.030 |
0.030 |
0.15 |
0.50 |
4.00 |
4.75 |
1.75 |
2.20 |
3.75 |
4.50 |
0.30 |
0.55 |
Co
4.00–4.50 |
|
H21 |
0.26 |
0.36 |
0.15 |
0.40 |
0.030 |
0.030 |
0.15 |
0.50 |
3.00 |
3.75 |
0.30 |
0.60 |
8.50 |
10.00 |
— |
— |
— |
|
H22 |
0.30 |
0.40 |
0.15 |
0.40 |
0.030 |
0.030 |
0.15 |
0.40 |
1.75 |
3.75 |
0.25 |
0.50 |
10.00 |
11.75 |
— |
— |
— |
|
H23 |
0.25 |
0.35 |
0.15 |
0.40 |
0.030 |
0.030 |
0.15 |
0.60 |
11.00 |
12.75 |
0.75 |
1.25 |
11.00 |
12.75 |
— |
— |
— |
|
H24 |
0.42 |
0.53 |
0.15 |
0.40 |
0.030 |
0.030 |
0.15 |
0.40 |
2.50 |
3.50 |
0.40 |
0.60 |
14.00 |
16.00 |
— |
— |
— |
|
H25 |
0.22 |
0.32 |
0.15 |
0.40 |
0.030 |
0.030 |
0.15 |
0.40 |
3.75 |
4.50 |
0.40 |
0.60 |
14.00 |
16.00 |
— |
— |
— |
|
H26 |
0.45 |
0.55 |
0.15 |
0.40 |
0.030 |
0.030 |
0.15 |
0.40 |
3.75 |
4.50 |
0.75 |
1.25 |
17.25 |
19.00 |
— |
— |
— |
|
H41 |
0.60 |
0.75 |
0.15 |
0.40 |
0.030 |
0.030 |
0.20 |
0.45 |
3.50 |
4.00 |
1.00 |
1.30 |
1.40 |
2.10 |
8.20 |
9.20 |
— |
|
H42 |
0.55 |
0.70 |
0.15 |
0.40 |
0.030 |
0.030 |
0.20 |
0.45 |
3.75 |
4.50 |
1.75 |
2.20 |
5.50 |
6.75 |
4.50 |
5.50 |
— |
|
H43 |
0.50 |
0.65 |
0.15 |
0.40 |
0.030 |
0.030 |
0.20 |
0.45 |
3.75 |
4.50 |
1.80 |
2.20 |
— |
— |
7.75 |
8.50 |
— |
|
A2 |
0.95 |
1.05 |
0.40 |
1.00 |
0.030 |
0.030 |
0.10 |
0.50 |
4.75 |
5.50 |
0.15 |
0.50 |
— |
— |
0.90 |
1.40 |
— |
|
A3 |
1.20 |
1.30 |
0.40 |
0.60 |
0.030 |
0.030 |
0.10 |
0.70 |
4.75 |
5.50 |
0.80 |
1.40 |
— |
— |
0.90 |
1.40 |
— |
|
A4 |
0.95 |
1.05 |
1.80 |
2.20 |
0.030 |
0.030 |
0.10 |
0.70 |
0.90 |
2.20 |
— |
— |
— |
— |
0.90 |
1.40 |
— |
|
A5 |
0.95 |
1.05 |
2.80 |
3.20 |
0.030 |
0.030 |
0.10 |
0.70 |
0.90 |
1.40 |
— |
— |
— |
— |
0.90 |
1.40 |
— |
|
A6 |
0.65 |
0.75 |
1.80 |
2.50 |
0.030 |
0.030 |
0.10 |
0.70 |
0.90 |
1.40 |
— |
— |
— |
— |
0.90 |
1.40 |
— |
|
A7 |
2.00 |
2.85 |
0.20 |
0.80 |
0.030 |
0.030 |
0.10 |
0.70 |
5.00 |
5.75 |
3.90 |
5.15 |
0.50 |
1.50 |
0.90 |
1.40 |
— |
|
A8 |
0.50 |
0.60 |
0.20 |
0.50 |
0.030 |
0.030 |
0.75 |
1.10 |
4.75 |
5.50 |
— |
— |
1.00 |
1.50 |
1.15 |
1.65 |
— |
|
A9 |
0.45 |
0.55 |
0.20 |
0.50 |
0.030 |
0.030 |
0.95 |
1.15 |
4.75 |
5.50 |
0.80 |
1.40 |
— |
— |
1.30 |
1.80 |
Ni
1.25–1.75 |
|
A10 |
1.25 |
1.50 |
1.60 |
2.10 |
0.030 |
0.030 |
1.00 |
1.50 |
— |
— |
— |
— |
— |
— |
1.25 |
1.75 |
Ni
1.55–2.05 |
|
D2 |
1.40 |
1.60 |
0.10 |
0.60 |
0.030 |
0.030 |
0.10 |
0.60 |
11.00 |
13.00 |
0.50 |
1.10 |
— |
— |
0.70 |
1.20 |
— |
|
D3 |
2.00 |
2.35 |
0.10 |
0.60 |
0.030 |
0.030 |
0.10 |
0.60 |
11.00 |
13.50 |
— |
1.00 |
— |
1.00 |
— |
— |
— |
|
D4 |
2.05 |
2.40 |
0.10 |
0.60 |
0.030 |
0.030 |
0.10 |
0.60 |
11.00 |
13.00 |
0.15 |
1.00 |
— |
— |
0.70 |
1.20 |
— |
|
D7 |
2.15 |
2.50 |
0.10 |
0.60 |
0.030 |
0.030 |
0.10 |
0.60 |
11.50 |
13.50 |
3.80 |
4.40 |
— |
— |
0.70 |
1.20 |
— |
|
O1 |
0.85 |
1.00 |
1.00 |
1.40 |
0.030 |
0.030 |
0.10 |
0.50 |
0.40 |
0.70 |
— |
0.30 |
0.40 |
0.60 |
— |
— |
— |
|
O2 |
0.85 |
0.95 |
1.40 |
1.80 |
0.030 |
0.030 |
— |
0.50 |
— |
0.50 |
— |
0.30 |
— |
— |
— |
0.30 |
— |
|
O6 |
1.25 |
1.55 |
0.30 |
1.10 |
0.030 |
0.030 |
0.55 |
1.50 |
— |
0.30 |
— |
— |
— |
— |
0.20 |
0.30 |
— |
|
O7 |
1.10 |
1.30 |
0.20 |
1.00 |
0.030 |
0.030 |
0.10 |
0.60 |
0.35 |
0.85 |
0.15 |
0.40 |
1.00 |
2.00 |
— |
0.30 |
— |
|
S1 |
0.40 |
0.55 |
0.10 |
0.40 |
0.030 |
0.030 |
0.15 |
1.20 |
1.00 |
1.80 |
0.15 |
0.30 |
1.50 |
3.00 |
— |
0.50 |
— |
|
S2 |
0.40 |
0.55 |
0.30 |
0.50 |
0.030 |
0.030 |
0.90 |
1.20 |
— |
— |
— |
0.50 |
— |
— |
0.30 |
0.60 |
— |
|
S4 |
0.50 |
0.65 |
0.60 |
0.95 |
0.030 |
0.030 |
1.75 |
2.25 |
0.10 |
0.50 |
0.15 |
0.35 |
— |
— |
— |
— |
— |
|
S5 |
0.50 |
0.65 |
0.60 |
1.00 |
0.030 |
0.030 |
1.75 |
2.25 |
0.10 |
0.50 |
0.15 |
0.35 |
— |
— |
0.20 |
1.35 |
— |
|
S6 |
0.40 |
0.50 |
1.20 |
1.50 |
0.030 |
0.030 |
2.00 |
2.50 |
1.20 |
1.50 |
0.20 |
0.40 |
— |
— |
0.30 |
0.50 |
— |
|
S7 |
0.45 |
0.55 |
0.20 |
0.90 |
0.030 |
0.030 |
0.20 |
1.00 |
3.00 |
3.50 |
— |
0.35 |
— |
— |
1.30 |
1.80 |
— |
|
L2 |
0.45 |
1.00 |
0.10 |
0.90 |
0.030 |
0.030 |
0.10 |
0.50 |
0.70 |
1.20 |
0.10 |
0.30 |
— |
— |
— |
0.25 |
— |
|
L3 |
0.95 |
1.10 |
0.25 |
0.80 |
0.030 |
0.030 |
0.10 |
0.50 |
1.30 |
1.70 |
0.10 |
0.30 |
— |
— |
— |
— |
— |
Key Features of ASTM
A681 Tool Steel Products
• High
hardness
• Excellent wear resistance
• Superior toughness
• Outstanding machinability in annealed condition
• Excellent heat treatment response
• High compressive strength
• Good dimensional stability
• Excellent cutting performance
• Long service life
• Suitable for precision tooling applications
Applications
of ASTM A681 Tool Steel Products
Tool
and Die Industry
• Punches
• Dies
• Forming tools
• Blanking tools
Metalworking
Industry
• Shear
blades
• Industrial knives
• Rolling dies
• Extrusion tools
Plastic
Molding Industry
•
Injection molds
• Compression molds
• Mold inserts
• Core pins
Automotive
Industry
•
Stamping dies
• Forging dies
• Precision tooling
• Manufacturing fixtures
Heavy
Engineering Industry
• Machine
components
• Wear-resistant parts
• Industrial tooling
• Production equipment
General
Manufacturing
• Gauges
• Jigs
• Fixtures
• Precision engineering components
Fabrication and
Machining
ASTM A681
tool steel products offer excellent machining characteristics in the annealed
condition.
•
Excellent machinability before hardening
• Suitable for milling and turning operations
• Good drilling characteristics
• Precision grinding capability
• Suitable for EDM machining
• Excellent dimensional stability after heat treatment
Proper
machining practices should be followed according to the selected tool steel
grade.
Heat Treatment
ASTM A681
tool steels are designed to respond effectively to heat treatment.
•
Annealing improves machinability
• Hardening develops maximum hardness
• Tempering improves toughness and stability
• Stress relieving minimizes distortion
• Controlled heat treatment ensures optimum tool performance
Heat
treatment parameters vary depending on the selected tool steel grade.
Advantages of ASTM
A681 Tool Steel Products
•
Excellent wear resistance
• High hardness after heat treatment
• Outstanding toughness
• Superior dimensional stability
• Excellent machining characteristics
• Long tool life
• Reliable performance under heavy loads
• Suitable for precision tooling applications
• Excellent resistance to deformation
• Cost-effective tooling material
Conclusion
ASTM A681
Tool Steel Sheets, Plates, and Bars are premium alloy tool steel products
developed for manufacturing cutting tools, dies, molds, punches, industrial
knives, and precision engineering components. Available in water-hardening,
cold work, hot work, high-speed, shock-resisting, and special-purpose grades,
these materials provide outstanding hardness, wear resistance, toughness, and
durability for demanding industrial applications.
Ladhani Metal Corporation
supplies ASTM A681 tool steel sheets, plates, and bars in a wide range of
grades, sizes, heat-treated conditions, and customized specifications,
providing dependable tooling material solutions for automotive, aerospace,
metalworking, plastic molding, and industrial manufacturing applications
worldwide.
FOR REQUIREMENT OF THIS GRADE
OR FOR DETAIL CONTACT US AT :-
#ASTMA681
#ASTMA681ToolSteel #ASTMA681SteelSheets #ASTMA681SteelPlates #ASTMA681SteelBars
#ASTMA681ToolSteelSheets #ASTMA681ToolSteelPlates #ASTMA681ToolSteelBars
#ASTMA681ColdWorkToolSteel #ASTMA681HotWorkToolSteel #ASTMA681HighSpeedSteel
#ASTMA681RoundBars #ASTMA681FlatBars #ASTMA681AnnealedToolSteel
#ASTMA681HeatTreatedSteel #ASTMA681WearResistantSteel #ASTMA681IndustrialSteel
#ASTMA681EngineeringSteel #ASTMA681SteelProducts #ASTMA681MechanicalProperties
#ASTMA681ChemicalComposition #ASTMA681SteelSupplier #ASTMA681Manufacturer
#ASTMA681Exporter #ASTMA681Stockist #ASTMA681Dealer #ASTMA681SteelDistributor
#ASTMA681MachiningSteel #ASTMA681CuttingToolSteel #ASTMA681MoldSteel
#ASTMA681DieSteel #ASTMToolSteel #ToolSteelPlate #ToolSteelBar
#IndustrialToolSteel #Mumbai #Delhi #Chennai #Kolkata #Bengaluru #Hyderabad
#Ahmedabad #Pune #Surat #Jaipur #Lucknow #Kanpur #Nagpur #Indore #Srinagar
#Aurangabad #Dhanbad #Amritsar #NaviMumbai #Allahabad #Ranchi #Howrah #Jabalpur
#Gwalior #Vijayawada #Jodhpur #Raipur #Kota #Guwahati #Chandigarh #Solapur
#Hubli #Mysuru #Tiruchirappalli #Bareilly
@Mumbai @Delhi @Chennai @Kolkata @Hyderabad @Bengaluru
 – ASTM A681 Standard, Available Grades, Sizes & Specifications){kind=link}