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Help Center4140 Alloy Round Bar Steel 20mm to 350mm With Quenching and Tempering
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SAE 4140 Alloy Round Bar Chemical Composition
|
Min. % |
Max % | ||||||||
| Carbon | 0.36 | 0.44 | |||||||
| Silicon | 0.10 | 0.40 | |||||||
| Manganese | 0.65 | 1.10 | |||||||
| Chromium | 0.75 | 1.20 | |||||||
| Molybdenum | 0.15 | 0.35 | |||||||
| Phosphorous | 0 | 0.04 | |||||||
| Sulphur | 0 | 0.04 | |||||||
SAE 4140 Alloy Round Bar Physical Properties
| DENSITY (G/CM 3) | 8.08 |
| DENSITY (LB/IN 3) | 0.292 |
| MELTING POINT (°C) | 1425 |
| MELTING POINT (°F) | 2600 |
SAE 4140 Alloy Round Bar Mechanical Properties
| Mechanical Property Designation | R | S | S | *T | U | V | W | ||
| Limited Ruling Section mm | 250 | 250 | 150 | 100 | 63 | 30 | 20 | ||
| Tensile Strength Mpa | Min | 700 | 770 | 770 | 850 | 930 | 1000 | 1080 | |
| Max | 850 | 930 | 930 | 1000 | 1080 | 1150 | 1230 | ||
| 0.2% Proof Stress Mpa | Min | 480 | 540 | 570 | 655 | 740 | 835 | 925 | |
| Elongation on 5.65√S0 % |
Min | 15 | 13 | 15 | 13 | 12 | 12 | 12 | |
| Izod Impact J | Min | 34 | 27 | 54 | 54 | 47 | 47 | 40 | |
| Charpy Impact J | Min | 28 | 22 | 50 | 50 | 42 | 42 | 35 | |
| Hardness Brinell HB | Min | 201 | 233 | 233 | 248 | 269 | 293 | 311 | |
| Max | 255 | 277 | 277 | 302 | 331 | 352 | 375 | ||
| *Material stocked generally in condition T Check test certificate if critical for end use. |
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Packaging & Shipping of our round bar :
MOQ: 1 Ton
Terms of delivery: FOB, CFR, CIF.
Terms of payment: L/C, T/T, Western Union,Cash.
Port of Loading: Shanghai,China
Quantity of stock: Normally have large quantity stocks.
Time of delivery: 3-7 days for samples;10-25 days for batch goods.Normally delivery in 20 days from production
Package Informations: Seaworthy Packing or as required
Our services of our round bar :
1. If you find any quality problem after receiving the goods, you can contact with us, we will manage and reply you in 12 hours
2.We are a factory manufacturing SS Round bar,best production capability ,best quality control, Best Service .
3.Inspected by the Inspection Institution of SGS or ISO
4.100% QC inspection Before Shippment.
1, what is your time of making a sample
Usually we will take 1~3 days to make the sample
2,What is your delivery time?
For stocks, we can send the goods to loading port within 7 days after receiving your deposit
For production period, it usually needs about 15days- 30 days after receiving the deposit
3, What is your shipping port?
Shanghai port, Ningbo port, Tianjin Port
4, What is your payment terms?
Usually 30% deposit by TT in advance and balance against copy of BL or LC at sight
5,What is your company locations?
Our office is located in Wuxi City Jiangsu province.
We have two indoor warehouses to ensure enough stock for different materials with sizes
Send Inquiry to This Supplier
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