86-731-89903933
Room 1003, Building 22, Zhongcheng Lijinxiangshan District, No. 239, Part II, Wanjiali Middle Road, Yuhua Area, Changsha, Hunan, China (Mainland)
Similar Grade:UNS T30104
Shape:Round,Flat,square
Size
| Diameter(mm) | Thickness(mm) | Width(mm) | Length(mm) | |
| Round | 8-420 | - | - | 2000-5800 |
| Square | 8-420 | - | - | 2000-5800 |
| Flat | - | 10-150 | 80-600 | 2000-5800 |
Chemical composition(%)
| Grade | C | Mn | P Max | S Max | Si | Cr | Mo |
| A4 Alloy tool steel | 0.95to 1.05 | 1.80 to 2.20 | 0.030 | 0.030 | 0.10 to 0.70 | 0.90 to 2.20 | 0.90 to 1.40 |
Hardeness
| Type | Annealed Max BHN | Cold Drawn Max BHN |
| A4 | 241 | 262
|
Mechanical properties
| Properties | Metric | Imperial |
| Hardness,Rockwell C(as air quenched from 845°C,61 HRC at 150°C temper,60 HRC at 205°C temper ,59 HRC at 260°C temper,58 HRC at 315°C temper,57 RHC at 425°C temper,54 HRC at 480°C temper,53 HRC at 540°C temper,50 RHC at 595°C temper,40 HRC at 650°C temper) | 63 | 63 |
| Machinability(based on carbon tool steel) | 65% | 65% |
| Shear modulus(typical for steels) | 80.0 Gpa | 11600ksi |
| Poisson's ratia | 0.27-0.30 | 0.27-0.30 |
| Elastic | 190-210 GPa | 27557-30457 ksi |
Physical Properties
The physical properties of A3 tool steels are given in the following table:
| Properties | Metric | Imperial |
| Density | 8.03g/cm3 | 0.290 lb/in3 |
Meterial and Manufacture
Unless otherwise specified,A4 tool steel covered by this specification shall be made by an electric melting process.It shall be made from ingots or slabs that have been reduced in cross section in such a manner to such a degree as to ensure proper refinement of the solidification structure.
Ultrasonic Quality
A4 tool steel will be ultrasonically tested at appropriate stages of the manufacture to ensure the quality,when and as agreed upon between seller and purchaser.
Quality assurance
ISO 9001 certified,IQNET,CQC.
Steelmaking Process
EF,EF/EAF+LF+VD,EF/EAF+ESR
Packing&loading
1.Unless otherwise specified,shipment shall be packaged and loaded in accordence with Practices A 700.
2.When specified in cantract or order,and for direct procurement by or direct shipment to the goverment,when Level A is specified,preservation,packaging and loading shall be in accordence with the Level A requirements of MIL-STD-163.
Package making:
A4 tool steel are supplied with marking according to standard A 681 and customer's requirement.
Delivery details:
Within 30-50 days.
Why choose us?
1.Cost-effective
2.Continious professional consulting service
3.Guaranteed delivery date
4.Accept minimual date
5.Flexible payment L/C,O/A,T/T,D/P,D/A
1.Are you trading company or manufacturer?
We are manufacturer,here is our website:
2.How I get the price?
We usyally quote within 24 hours after we get your inquiry by telling us the material,out diameter,length,quality and application of the steel roun bar which you need.If you are very urgent to gethe price,please inform us in email so taht we will ragard your inquiry priority.
3.How can I expect to get the sample?
After price confirmation,you can require for sample to check our quality.We will provide you the sample for free,however we could only make sure the same material,the dimension will bemuch similar as your request but not same.And customer should afford the charge of shipment.
4.How long can I expect to get the sample?
The sample will be sent to you via express and arrive in 3-5 days.You can use your own consignee account or prepay us if you do not have an account.
5.What about the lead time for mass production?
Honestly,it depends on the order quality and the season on your place the order.
6.What is the Small QTY Process Charge?
It is the payment for custonmer whose order qty is less then Min Order Qty.Because small qty of products should be processed same in the production flow as big qty and the average cost would get much higher then gones.So there is small Qty Process Charge to ensure the profit of our factory and ususlly the amount of it is about $250.00.
7.Could the steel be customized for us?
Yes.We are the professional manufacturer which has rich experience in Precision Seamless Steel Sheet manufacturing.We could print the logo and label under your requirments if you need OEM product.Besides this ,we will do some refined processes like CNC cutting,chamfering galvanization and tapping.If you have detailed spec or drawing our production lead time is within 30-45 days.
8.What is your terms or delivery?
We accept EXW,FOB,CIF,DDU etc.You can choose the one which is the most convenient or cost effective for you.
Add: Room 1003, Building 22, Zhongcheng Lijingxiangshan District, No. 239, Part II, Wanjiali Middle Road, Changsha, Hunan, China
Tel:+86Fax:
Mobile:+86(whatsapp)
Skype: craneleeAToutlook.com Email:
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