4340 ground and polished bright steel 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.: 4340
Type: Alloy Steel Bar
Standard: AISI, ASTM
Steel Grade: Other
Technique: Cold Drawn
Application: Structural Steel Bar
Surface Treatment: Polished
Alloy: Alloy
Special Use: Mold Steel
STEEL GRADE: 4340
Additional Info
Packaging: Anti-rusty standard seaworthy
Productivity: 3000 tons per month
Brand: LE REN
Transportation: Ocean,Land,Air
Place of Origin: Shandong Provnce, China
Supply Ability: 3000 tons per month
Certificate: ISO 9001
HS Code: 7228309000
Port: Qingdao Port
Product Description
4340 ground and polished bright steel bar
aisi 4340, sae 4340, astm 4340 steel is same steel grade material in different American Industry Standard. It is one kind of nickel chromium molybdenum alloy steel grade material knows for it's toughness and ability to attach high strength and hardness after heat treatment. 4340 turned, ground and polished precision shafting is produced by 4340 cold drawn or hot roll steel bar to get precision dimension and better straightness in the production of shafts. The straightness is quite important to shafting CNC machining. 1045 TG&P is used to produce crankshafts, high-speed motor shafts, axle shafts, pup shafts, etc.
Our company Shandong Le Ren Special Steel Co., Ltd. is a factory to produce cold drawn steel bars, peeled steel bars, centerless ground and polished bright steel bars, heat treated steel bars such as annealed steel bar, normalized steel bar, quenched and tempered steel bar, threaded rods, high strength tie rods and anchor bolts etc. Except above special steel bar, we can also supply other steel bar processing service such as cutting in pieces, drilling holes, thread rolling, chamfering, straightening, shot blasting etc. Our full set of production facilities and complete testing equipments help us to supply steel solutions to our customers to decrease their production whole cost and increase their commercial value.
For 4340 steel grade materials, we can supply you aisi4340, sae 4340, astm 4340 hot rolled steel round bar, aisi 4340, sae 4340, astm 4340 cold drawn steel round bar, aisi 4340, sae 4340, astm 4340 peeled steel round bar, aisi 4340, sae 4340, astm 4340 centerless ground and polished steel bar, sae 4340, aisi 4340, astm 4340 annealed, normalized, quenched and tempered steel round bar.
4340 ground and polished steel bar we supply includes following advantages:
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 ground and polished steel bar we supply:
1. 4340 steel equivalent material:
|
GB |
JIS |
ASTM/AISI/SAE |
|
40CrNiMo(A) |
SNCM439 |
4340 |
5. 4340 steel 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 steel 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. Our products inspection:
6. Our products Packages:
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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