carbon steel grade 4120 round bar
| Payment Type: | L/C,T/T,D/P,Paypal,Money Gram,Western Union |
|---|---|
| Terms of Trade: | FOB,CFR,CIF,EXW,FCA,CPT,CIP |
| Min. Order: | 5 Metric Ton |
| Delivery Time: | 30 Days |
| Packaging: | Anti-rusty packages |
|---|---|
| Productivity: | 3000 per month |
| Brand: | LE REN |
| Transportation: | Ocean,Land,Air |
| Place of Origin: | LAIWU, CHINA |
| Supply Ability: | 3000 per month |
| Certificate: | ISO9001 |
| HS Code: | 72283090 |
| Port: | Qingdao Port |
Basic Info
Model No.: 4120
Product Description
aisi 4120 steel round bar
4120 steel grade is one kind of low carbon Chromium Molybdenum steel material which is usually used to produce 4120 steel joint, 4120 steel nut, 4120 steel screws, 4120 steel shaft, steel stud, 4120 steel flanges and valves etc. 4120 steel material is in US standard as aisi 4120, sae 4120 and astm 4120. 4120 steel grade equivalent materials includes scm420, 18CrMo4, 20CrMo etc. Except 4120 steel material, there is also 4120h steel material. The difference of 4120 steel and 4120h steel is that 4120h steel is one kind of gear steel which is popular to be used to produce gears and shafts in cars, motors and parts needed strength and cutting features.
Our company is a manufacturer of 4120 alloy steel bar including 4120 alloy steel round bar, 4120 alloy steel square bar, 4120 alloy steel flat bar, 4120 alloy square steel bar and 4120 alloy hexagonal steel bar.
4120 steel spec / 4120 steel specifications:
1. Chemical composition of 4120 steel:
| Material | Chemical Composition % | ||||||
| ASTM/SAE/AISI | C | Si | Mn | S | P | Cr | Mo |
| Aisi 4120 / sae 4120 / astm 4120 | 0.17-0.24 | 0.17-0.37 | 0.40-0.70 | 0.035 max | 0.035 max | 0.80-1.10 | 0.15-0.25 |
2. 4120 steel equivalent steel grade:
| GB | ASTM/SAE/AISI | DIN | SCM | AS /NZS1444 |
| 20CrMo | Aisi 4120 / sae 4120 / astm 4120 | 18CrMo4 | SCM420 | AS 4120 |
3. 4120 steel sizes:
| 4120 steel bar shapes | 4120 steel bar sizes range | 4120 steel bar tolerance |
| 4120 steel round bar | 8mm to 100mm for 4135 cold drawn steel round bar | h9 h10 h11 -0.05mm/+0mm min |
| 30mm to 100mm for 4135 peeled steel round bar | h9 h10 h11 -0.02mm/+0mm min | |
| 100mm to 300mm for 4140 turned steel round bar | +/-2mm max | |
| 300mm to 800 for 4140 forged steel round bar | +/-10mm max | |
| 4120 steel square bar | (8*8)mm to (100*100)mm | h9 h10 h11 -0.05mm/+0mm min |
| 4120 steel flat bar / 4120 steel rectangular bar | (8*20)mm to (80*100)mm | +/-0.1mm |
| 4120 steel hex bar / octagon 4120 steel | 16mm to 75mm | h9 h10 h11 |
4. Weight of 4120 steel:
| Weight of 4120 steel round bar | 0.00617*D*D*Length |
| Weight of 4120 square steel bar | 0.00785*D*D*Length |
| Weight of 4120 hex bar | 0.0068*D*D*Length |
5. 4120 steel microstructure:
4120 steel bar grain size: 5 to 8
4120 steel nonmetal Impurity:
| A | B | C | D | ||||
| T | H | T | H | T | H | T | H |
| 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
6. Processing of 4120 steel:
We are a factory to process all kinds of steel bars on surface, size and microstructure. With complete production and processing facilities, we can supply all kind of pre heat treated 4135 steel bar and pre machining 4120 steel bar as following:
1) Heat treatment of 4120 steel
Oil quenching 4120 steel / 4120 normalizing steel / pre hardened 4120 steel / annealing 4120 steel / stress relieving 4120 steel / 4120 qt steel / flame hardening 4120 steel / 4120 steel induction hardening / case hardening 4120 steel / aisi 4120 oil quenched / austempering 4120 steel / 4120 steel water quenched / nitriding 4120 steel / milling 4120 steel
After heat treatment, 4120 steel bar can get better heat treated 4120 steel properties, for example:
4120 steel quenched and tempered properties:
Yield strength of 4120 steel: 685MPa min
Tensile strength of 4120 steel: 885MPa min
Elongation of 4120 steel: 12% min
Reduction area of 4120 steel: 50% min
Rockwell hardness of 4120 steel: 32HRC max
Brinell hardness of annealed 4120 steel: 197HB max
Vickers hardness of 4120 steel hv: We can also guarantee the Vickers hardness based on your special requirements.
2) Machining 4120 steel:
knurling 4120 steel / tapping 4120 steel / grinding 4120 steel / turning 4120 steel / threading 4120 steel / cutting 4120 steel / drilling 4120 steel / forging 4120 steel / laser cutting 4120 steel / reaming 4120 steel / stick welding rod for 4120 steel / bending 4120 steel / brazing 4120 steel / straightening 4120 steel / tg&p 4120 steel / polishing 4120 steel / cold drawing 4120 steel
After the machining, 4120 steel can get precision size, various surface, better roughness, straightness etc. 4120 steel can be used for axe, pins, knives, gun barrels, gears, bolts, washers, hammer, sword etc.
As a Chinese steel bar professional manufacturer and supplier of more than twenty years, with complete produce and processing facilities, advanced testing equipments and big stock of steel bar, we can supply 4120 steel bar with good quality, competitive price, short delivery time and personalized customization. We welcome old and new customers to inquire to us for technical questions and demands.
Established in April, 2009, SHANDONG LE REN SPECIAL STEEL CO., LTD. is specialized in trading steel products and supplying technical service in domestic and international markets. Through ten years` rich experience, we have forged one professional team.
Adhering to "Beyond customers` expectation, Realizing staff`s dream" philosophy, our company is developing rapidly by supplying customers with good quality products and professional service. In the year 2016, our factory SHANDONG LE SHAN MACHINERY CO., LTD. built cold drawing, peeling, grinding production lines; annealing, normalizing, quenching & tempering heat treatment production lines; chamferring and threads rolling production lines. To guarantee the products quality, we also installed full sets of testing and inspecting machines. All of this urge us to meet the customer`s personalized demands.
Our major products includes cold drawn steel products such as steel bars and profiles, peeled steel bright bars, heat treated steel bars, threaded rods, high strength tie rods, prestressed anchor bolts in wind power industry and high strength anchor bolts.
The current annual productivity is 40000 tons, we aim to build 100000 tons high strength deformed bars and anchor bolts production line. Our products are widely used in machinery components, oil and gas, railways, bridges and mining etc industries. With the service philosophy, advanced production facilities, full sets of test and inspection equipment, we will keep improving to supply customers` better and better quality approved products and service.
- Company Name: SHANDONG LE REN SPECIAL STEEL CO., LTD.
- Representative: WEI BAIGANG
- Product/Service: Cold Drawn Steel Bar , Bright Steel Bar , Heat Treated Steel Bar and Tube , Threaded Rods , High Strength Steel Tie Rod , High Strength Steel Bolts
- Capital (Million US $): 30,000,000 RMB
- Year Established: 2009
- Total Annual Sales Volume (Million US $): Above US$100 Million
- Export Percentage: 71% - 80%
- Total Annual Purchase Volume (Million US $): Above US$100 Million
- No. of Production Lines: 8
- No. of R&D Staff: 5 -10 People
- No. of QC Staff: 5 -10 People
- OEM Services Provided: yes
- Factory Size (Sq.meters): 5,000-10,000 square meters
- Factory Location: NO. 10, JIULONG MOUNTAIN ROAD, DEVELOPMENT AREA,JINAN CITY, SHANDONG PROVINCE, CHINA
- Contact Person: Ms. Angelina Chen
- Tel: 86-0634-5648998
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