4340 quenched & tempered steel round bar
Payment Type: | L/C,T/T,D/P,Paypal,Money Gram,Western Union |
---|---|
Incoterm: | FOB,CFR,CIF,EXW,FCA,CPT,CIP |
Min. Order: | 5 Metric Ton |
Delivery Time: | 30 Days |
Basic Info
Model No.: aisi 4340 / sae 4340 / astm 4340
Type: Other
Standard: AISI, ASTM
Steel Grade: Other
Technique: Hot Rolled
Application: Structural Steel Bar
Surface Treatment: Other
Alloy: Alloy
Special Use: Mold Steel
STEEL GRADE: Aisi 4340 / Sae 4340 / Astm 4340
Additional Info
Packaging: Anti-rusty standard seaworthy
Productivity: 3000 tons per month
Brand: LE REN
Transportation: Ocean,Land
Place of Origin: Shandong Provnce, China
Supply Ability: 3000 tons per month
Certificate: ISO 9001
HS Code: 7228309000
Port: Qingdao Port
Product Description
4340 quenched & tempered steel round bar
aisi4340 steel is one kind of nickel chromium molybdenum alloy steel know for it's toughness and ti's ability to attach high strength after heat treatment.
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.
4340 material quenched and tempered q&t steel bar we supply includes following advangtages:
Consistent mechanical properties
Deep 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
Specification of 4340 material quenched and tempered q&t steel bar we supply:
1. 4340 steel equivalent material:
GB
JIS
ASTM/AISI/SAE
40CrNiMo(A)
SNCM439
4340
5. Chemical composition:
|
C |
SI |
MN |
S |
P |
Cr |
Mo |
Ni |
40CrNiMo(A) |
0.37-0.44 |
0.17-0.37 |
0.50-0.80 |
0.035 (max) |
0.035 (max) |
0.60-0.90 |
0.15-0.25 |
1.25-1.65 |
SNCM439 |
0.36-0.43 |
0.15-0.35 |
0.60-0.90 |
0.030 (max) |
0.030 (max) |
0.60-1.00 |
0.15-0.35 |
1.65-2.00 |
aisi 4340 |
0.38-0.43 |
0.15-0.35 |
0.60-0.80 |
0.035 (max) |
0.035 (max) |
0.70-0.90 |
0.20-0.30 |
1.65-2.00 |
6. 4340 Mechanical Properties:
Yield Strength(MPa) |
Tensile Strength(MPa) |
Elongation(%) |
AKV |
835(min) |
985(min) |
12(min) |
55(min) |
aisi4340 steel can be used to produce commercial and aircraft, automobile systems, forged hydraulic and other machine tools like forged steel crankshafts
5. Production line:
6. Production Facilities:
7. Inspection:
8. Package:
9. RFQ:
Q1. Are you a manufactuer?
A1:Yes, we have our own factory and labatory to produce and inspect products.
Q2. How to ensure that every process's quality?
A2:Every process will be checked by our quality inspection department which insures every product's quality. we will personally go to tIn the production of products,he factory to check the quality of products.
Q3.How long is your delivery time?
A3:Our delivery time is generally 30 to 45 days. Or according to the quantity.
Q4. What is your payment method?
A4:30% value of T/T in advance and other 70% balance on B/L copy.
Q5.Can you provide a sample?
A5:Sure, Our sample is provided free of charge, but not including courier fees
CONTACT US
SHANDONG LE REN SPECIAL STEEL CO., LTD.
Address: NO. 89, QINGSHUI COMMERCIAL STREET, LAIWU DISTRICT,Jinan,Shandong
Contact Person: Angelina Chen
Phone:86-0634-5648998
Fax:86-0634-5648997
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