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Help CenterGrade 4140 Steel Properties Round Bar
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Grade 4140 round steel bar is a Chromium-Molybdenum through-hardening steel of medium hardenability. It is a general purpose high-tensile steel with medium strength level and good impact properties.
Quenching and Tempering, abbreviated as Q&T is a king of processing that strengthen or harden steel bars by heating the materials and then cooling in water, oil or other liquid medium, that rapidly the change from austenite to perlite to get the proper properties for various usage. The quenched & tempered steel bar materials are usually with carbon from 0.30% - 0.60%, it is widely used as merchant bars in components of various machines.
Aisi 4140 round steel bar material quenched and tempered q&t steel bar we supply includes following advangtages:
Consistent mechanical propertiesDeep mechanical properties (from surface to the center according to your requirement)
Even hardness on the whole bars/Tougher and Increased strength No brittle, UT testing/Precision size tolerance/Good straightness Good Roughness/Professional technical service/Competitive price/Fast delivery
Aisi 4140 round steel bar material quenched and tempered q&t steel bar we supply:
Product |
Steel round bar |
12mm to 150mm |
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Steel square bar |
16*16mm to 150*150mm |
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Hexagonal steel bar |
14mm to 150mm |
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Delivery condition |
Hot rolled + Q&T, cold drawn + Q&T, Q&T+ Peeled, Q&T+ Peeled+ Grinding |
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Surface treatment |
Quenching and Tempering,Shot blasting, Straightening,Cold drawing, Peeling & Turning, Grinding |
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Sizes tolerance |
ISO898 for hot rolled,h9, h10, h11 for cold drawn and peeling |
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Certificate |
ISO9001 |
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MOQ |
1 ton each diameter according to stocks |
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Delivery time |
Within one month in general |
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Payment term |
T/T, L/C, D/P etc. |
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GB |
ASTM/SAE/AISI |
DIN |
SCM |
AS /NZS1444 |
42CrMo |
Aisi 4140 / sae 4140 / astm 4140 |
42CrMo4 / 42CrMoS4 |
SCM440 |
AS4140 |
Materail |
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ASTM/SAE/AISI |
C |
Si |
Mn |
S |
P |
C |
M |
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Aisi 4140 / sae 4140 / astm 4140 |
0.38-0.43 |
0.15-0.35 |
0.75-1.00 |
0.035 max |
0.035 max |
0.80-1.10 |
0.80-1.10 |
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Mechanical Properties |
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Yield Strength (MPa) |
Tensile Strength (MPa) |
Elongation |
Reduction of area |
AKV (J) |
930 min |
1080 min |
12% min |
14% min |
63 min |
Q: How about the delivery terms?
A: 1. Payment: T/T, 30% deposit in advance and balance before delivery.
2. Min. Order Quantity:3TON or as required.
3. Transportation: By express (DHL,TNT,),air,sea,and train.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: How about your after-sales service?
A: As a professional steel exporter, we offer promote technology support for all problems and questions.
Besides, we accept goods return or replace for quality problem.
Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products,
Modern always makes a serious inspection for all products and raw materials in strict procedure.
Why choose us?
1. We're Gold Supplier. Evaluated by Alibaba.
2. More than 9 years exprience, especially in cold rolled steel pipe industrty.
3. Export to Korea, Pakistan, Brazil, Russia, India, Vietnam and other countries
4. Work with many famous brands, such as Tisco, Baosteel.
5. Quick response to your inquiry.
Timely communication and feedback.
6. Samples could be provided.
7. Excellent production technology.
Different shapes of products can be cut and provided.
8. Strong production capacity. Fast delivery capacity. Quick supply capacity.
9. Strict Quality Control and Inspection in every process.
Our Advantages
1. We are a specialized manufacturer. Competitive price and quality from our own factory .
2. Best service with 24 hour`s reply .
3. Flexible payment with T/T,L/C , etc .
4. Smooth production ability(1000tons/month).
5. Quick delivery and standard exporting package .
Claudia
Phone:+8613863528632
WhatsApp:+8613863528632
skype:Claudia826645
website:https://huiyuansteel.en.china.cn
company name: shandong huiyuan metal material co.,ltd
Send Inquiry to This Supplier
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