A9 Tool Steel (UNS T30109) - Air-Hardening, Cold-Work Steel

• Type: Alloy Steel Bar
• Standard: ASTM
• Composition: Ferrous Steel Scrap
• Technique: Hot Rolled, Forged
• Shape: Round, Square, Flat
• Surface Treatment: Grinded, Peeled, Polished, Rough Turned
• Model NO.: A9
• Special Use: Mold Steel
• Application: Tool Steel Bar
• Similar Grades: Uns T30107
• Size Range: Diameter: 20-480mm
• Quality Standard: ASTM-A681
• Delivery Condition: Annealed, Qunched and Tempered
• Surface Condition: Grinded, Peeled, Polished, Rough Turned
• Transport Package: Apply The Shipping Packing
• Specification: Diameter: 20-480mm
• Trademark: FUSHUN
• Origin: Hubei, Huangshi
• HS Code: 7228600000
• Production Capacity: 500tons Per Month

Product Description

Similar Grades:
UNS T30109
Shape: 
Round, Flat, Square.
Size Range:

	Diameter(mm)	Thickness (mm)	Width (mm)	Length(mm)
Round	20-480	-	-	2000-5800
Square	20-480	-	-	2000-5800
flat	-	20-50	80-600	2000-5800

 
Steel-making Condition: 
EF, EF/EAF+LF+VD, EF/EAF+ESR
Delivery Condition:
Annealed , Quenched + Tempered

Surface Condition: 
Black, Grinded, Peeled, Rough turned, Polished

Features:
1.Competitive price
2.Immediate delivery
3.Premium quality
4.Reliable service
5.MOQ: 1 Ton
 

Packing details	In seaworthy packing, as your requirement.
Delivery details	within 30-50 days

Chemical Composition(%)

C	Mn	P	S	Si	Cr	V	Mo	Ni
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	1.25-1.75

 

 
Mechanical Properties

Properties	Metric	Imperial
Hardness, Knoop (converted from Rockwell C hardness)	662	662
Hardness, Rockwell C (tempered at 500°C)	57	57
Hardness, vickers	641	641
Tensile strength, ultimate (tempered at 500°C)	2200 MPa	319000 psi
Tensile strength, yield (tempered at 500°C)	1780 MPa	258000 psi
Elongation at break (in 50 mm; tempered at 500°C)	5.00%	5.00%
Izod impact (smooth bar; tempered at 500°C)	18.0 J	13.3 ft-lb
Poisson's ratio	0.27-0.30	0.27-0.30
Elastic modulus	190-210 GPa	27557-30457 ksi

 
 
 

Introduction:
Group A steels are A2, A3, A4, A6, A7, A8, A9, and A10 steels. They are also called air-hardening, medium alloy, cold work steels. Carbon content of group A steels range from 0.5 to 2%. These steels are provided with air hardening characteristics that allow minimum cracking and distortion on quenching.
Sufficient amounts of manganese, molybdenum and chromium present in group A steels provide full hardness in sections comprising thickness of at least 100 mm (4 in.) in diameter when air cooled.
The data below will provide an overview of A9 air-hardening, medium-alloy, cold-work tool steels.