ASTM SAE1045 S45C 45# Medium Carbon High Quality Cold Drawn Steel Round Bar 60*6000MM
s45c c45 sae1045 aisi1045 carbon steel is used for heat treating (quenching and tempering). Although it has only a fair response to conventional quenching, it is widely used where requirements are not too stringent. It is also used extensively in induction hardening applications. This is not normally considered a screw machine steel and is only fair for brazing and welding. However, it can be forged satisfactorily and is the most common shafting steel in the medium carbon range.
structural carbon steel :45# with details in under sheet :
| Standard No. | Alloy No. | Chemical compositions(%) |
| C | Cr | Mn | Ni | P | S | Si |
| GB/T699-1999 | 45# | 0.42~0.50 | ≤0.25 | 0.50~0.80 | ≤0.25 | ≤0.035 | ≤0.035 | 0.17~0.37 |
Mechanical
Property | Tensile Strength(Mpa) | Yeild Strength(Mpa) | Elongation(%) | Contraction of area Z(%) |
| ≥600 | ≥355 | ≥16 | ≥40 |
The correlation between properties and parameters-S45C (JIS)-SAE1045(Aisi)-SM45 of No. 45 steel(45 steel) was studied:
No. 45 steel is a carbon structural steel with 0.45% carboncontent. It is characterized by low price, good cutting performance, high hardness after quenching, good strength, toughness and wear resistance after quenching and temperingtreatment, is widely used in manufacturing structural partsand low-grade plastic mold. "45 steel" is a popular name, thesymbol is generally recorded as"45 #". In fact GB standardsteel number is"45", it is not a sequential number, read as"45steel" is not very accurate. Ingredient code 45 steels of similar designation are S45C (JIS) and 1045(Aisi) . In addition, ourcountry metallurgical technology standard has SM45 brandnumber to express the plastic mold use specially. Comparedwith 45 steel, SM45 has lower phosphorus and sulfur contentand better steel purity.
| Standards | YB/T 094 | AISI | JIS G4051 |
| Alloy No. | SM45 | 1045 | S45C |
| C | 0.42-0.48 | 0.43-0.50 | 0.42-0.48 |
| Si | 0.17-0.37 | | 0.15-0.35 |
| Mn | 0.50-0.80 | 0.60-0.90 | 0.60-0.90 |
| P | <0.030 | <0.030 | <0.030 |
| S | <0.035 | <0.035 | <0.035 |
Recommended process specification for heat treatment andhardness: quenching temperature 820 - 860" C, water-oroil-cooled, hardness 250 HRC. Recommended tempering pro-cess specifcation: tempering temperature is 500 - 560" C, aircooling, hardness is 25 - 33HRC. Tempering in this temperature range is the tempering treatment, Quenching and tempering make the strength, plasticity and toughness of 45 steelget a good balance, the comprehensive performance is good,can adapt to the alternating load environment. After quench-ing and tempering, the surface hardness of 45 steel is low anddoes not wear well. So commonly used quenching and tempering + surface quenching to improve the surface hardnessof parts.
| Tempering temperature | After quenching | Unit centigrade |
| 200 | 300 | 400 | 500 | 550 | 600 |
Hardness
HRC | 57 | 55 | 50 | 41 | 33 | 26 | 22 |
| Mechanical properties (GB/T 699-1999) |
| Sample size | mm | 25 |
| Heat treatments recommended | Normalizing | ºC | 850 |
| Quenching | ºC | 840 |
| Tempering | ºC | 600 |
| Mechanical properties | Tensile strongth | Mpa | ≥600 |
| Strong yield | Mpa | ≥355 |
| Elongation | Mpa | ≥16 |
| Section shrinkago | Mpa | ≥40 |
| Impact | Mpa | ≥39 |
| Hardness of delivery | | HB | ≤229 |
| | HB | ≤197 |
4. s45c c45 sae1045 aisi1045 steel bar Size Range
| Commodity delivery condition | Dimensions |
| Hot rolled steel round bars | 10mm to 310mm |
| Hot rolled steel square bars | 16mm*16mm to 100mm*100mm |
| Hot rolled steel flat bars | (8mm to 60mm)*(20mm to 100mm) |
| Forged steel round bars | 200mm to 800mm |
| Forged steel square block | 200mm*200mm to 500mm*500mm |
| Forged steel flat block | (150mm to 500mm)*(200mm to 500mm) |
| Cold drawn steel round bar | 8mm to 150mm |
| cold drawn steel square bar | 10mm*10mm to 50mm*50mm |
| Cold drawn hexagonal steel bar | 14mm to 100mm |
| Hot rolled and peeled or turned steel bright bars | 20mm to 120mm |
5.Producing line:
s45c c45 sae1045 aisi1045 hot rolled steel round bar production line
1): Iron - hot metal pretreatment - Converter - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
2): Electric Furnace - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
6.FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
Q: How about the MOQ? If my first order qty is small, will you accept?
A: We would like to do our best to support your trial order qty, so even 1 pc or 1 kg is ok to start cooperation; because we have confidence to move on second order with your esteemed company.
Q: What is your payment terms ?
A: Commonly two payment term for new customers: 1) 30% T/T as deposit , 70% balance against B/L copy; 2) 100% Irrevocable L/C at sight;If you need any other terms, pls feel free to contact us too, we will try our best.
Q: How long is your delivery time?
A: Our daily inventory is more than 8000 tons, so for common product size, just need 5 days from stocks; if the special size from new production, delivery 7 days.
Q: How about the samples ? is it free or extra fees?
A: Yes, we would like to supply the samples before order; if the samples from stock, it will be free; if the samples from new production, we will charge some reasonable cost, but this amount will be deducted from your first order invoice.
Q: How to control and guarantee your shipment quality?
A: 1) All our factories are ISO9001, CE certified facility; 2) World famous origin mills as TISCO, Baosteel. 3) Ex factory inspection by our own laboratory. 4) SGS/BV Third party inspection before delivery.
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