Qingdao Teste Metal Products Co., Ltd.
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 5000 Ton/Tons per Month |
| Delivery Time | 7~10 working days |
| Product name | Alloy Steel Round Bar |
| Heat-treatment | +A,+N,+NT,+QT |
| Diameter | 3mm~3000mm |
| Surface | Black,Grounded,Peeled/Turned,Polished |
| Certification | ISO 9001 ,CE |
| Place of Origin | Jiangsu,China |
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 5000 Ton/Tons per Month |
| Delivery Time | 7~10 working days | Product name | Alloy Steel Round Bar |
| Heat-treatment | +A,+N,+NT,+QT | Diameter | 3mm~3000mm |
| Surface | Black,Grounded,Peeled/Turned,Polished | Certification | ISO 9001 ,CE |
| Place of Origin | Jiangsu,China | ||
| High Light | 5160 round bar ，5052 round bar ，6150 round bar | ||
AISI 5140 alloy steel is a structural alloyed carbon steel accding to AISI/ASTM standard which is widely used in Low and moderately stressed parts for vehicles, engines and machines where hard, wear resisting surface is needed. The hardness as surface hardened is about 54 HRC.
CHEMICAL COMPOSITION
| Element | C | Mn | Si | P | S | Mo |
| 4140 | 0.38~0.43% | 0.75~1.0% | 0.15~0.30% | 0.035% | 0.04% | 0.15~0.25% |
| 4130 | 0.28~0.33% | 0.70~0.90% | 0.15~0.35% | 0.035% | 0.04% | 0.15~0.25% |
| 5140 | 0.38~0.48% | 0.70~0.9% | 0.15~0.35% | 0.035% | 0.04% | - |
HEAT TREATMENT OPTION
FABRICATION AND HEAT TREATMENT
Machinability
Long, gummy chips characterize this alloys machinability. It can be machined in the annealed condition, however condition H1150M will yield best results. Post machining solution treatment of parts will be required prior to final hardening if machining in this condition.
Welding
Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding. AWS E/ER630 filler metal is recommended if required.
Heat Treatment
CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation. CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075, H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.
Forging
Soak for 1 hour at 2150 F (1177 C) prior to forging. Do not work below 1850 F (1010 C). Post-work solution treatment is required prior to final hardening.
Soft Annealing
Heat to 680-720℃, cool slowly. This will produce a maximum 5140 hardness of 241HB (Brinell hardness).
Tempering
Tempering temperature: 540-680℃.
Noramlizing of steel grade 5140
Temperature: 840-880℃
Hardening
Harden from a temperature of 820-850, 830-860℃ followed by water or oil quenching.
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2018
Total Annual:
15000000-20000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Qingdao Teste Metal Products Co., Ltd. is a professional manufacturer with more than 20 years of experience in manufacturing stainless steel and carbon steel establised in 2018. Our location is in Wuxi - the largest stainless-steel processing center in China. We have our own factory and... Qingdao Teste Metal Products Co., Ltd. is a professional manufacturer with more than 20 years of experience in manufacturing stainless steel and carbon steel establised in 2018. Our location is in Wuxi - the largest stainless-steel processing center in China. We have our own factory and...
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