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Qingdao Helio Steel Co., Ltd.

Steel Bar, Round Steel, Steel Round Bar manufacturer / supplier in China, offering AISI 4340 / SAE 4340 Quenched and Tempered Alloy Steel Round Bar, Gr8.8 40cr 41cr4/1.7035 5140 530A40 Fasteners Qt Steel Bars, Hot Rolled Carbon Steel Bar St37-2 1020 Ss400 050A20 and so on.

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AISI 4340 / SAE 4340 Quenched and Tempered Alloy Steel Round Bar

FOB Price: US $900 / Ton
Min. Order: 10 Tons
Min. Order FOB Price
10 Tons US $900/ Ton
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Production Capacity: 10000tons/Month
Transport Package: Standard Seaworthy Package
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: 4340 4140 4130
  • Standard: AISI, ASTM, GB, JIS, DIN, BS
  • Surface Treatment: Black
  • Special Use: Mold Steel
  • Delivery Condition: Hot Rolled / Forged/Qt
  • Manufacturer or Not: Manufacturer
  • Specification: 16-310mm
  • HS Code: 72283090
  • Type: Alloy Steel Bar
  • Application: Alloy Steel
  • Alloy: Alloy
  • Processing: Eaf+Lf+Vd
  • Ut Test Standard: Sep1921 Class C/C
  • Trademark: LEREN
  • Origin: China
Product Description
aisi 4340 / sae 4340 Quenched and tempered alloy tool steel round bar
aisi 4340 / sae 4340 Quenched and tempered alloy tool steel round bar
aisi 4340 / sae 4340 Quenched and tempered alloy tool steel round bar

 
1)Sizes details
1.Dia:16-200mm for hot rolled, 200-1200mm for forged
2.length:1-12m (canbe required)
1.Length tolerance: -0/+50mm
2.Straightness:≤3mm/m.
2)Basic information
1.Both end of each bar must be cut. 
2.Ladle furnaced and vacuum de-gassed
3.Show Heat No. on each bar
4.Surface condition: The surface of the bar shall be free cracks, scar and wrinkles at affect the use of the billets.In case there is the above-mentioned defect.it shall be removed.
5.The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition shall be within the limit stipulated in the contract
 
3)Grade 

GB,YB
JISDIN(W-Nr.) BS
40CrNiMoASNCM439/(SNCM8) 4340817M40/816M40/EN24

 4)Chemical composition:\

C
SiMnSPCrNiMo
0.37-0.440.17-0.370.50-0.80Max0.040Max0.0350.60-0.901.25-1.650.15-0.25

 5)Physical Performance

Tensile Strength(Mpa)
Yield Strength(Mpa)Elongation(%)AKV(J)Reduction of Area(%)
98078594740

6)Our advantages
1.Gas content requirements : O2 - <20 ppm H2 - <2 ppm N2- <100 ppm
2.Grain Size: 6 or finer
3.Macro Etch: Not more than Grade2(C2R2S2)
4.UT test: Class C/c or better
5.Processing Line:Blast Furnace/Electric Arc Furnace LRF VD Continuous Caster Hot Rolling
6.High degree of purity,homogenous structure, impacting ductility
 
We company, Qingdao Helio Steel is one of the lead manufacturer for cold drawn/cold finished steel bars in Shandong Province, China. Our factory own three sets of cold drawn/cold finished steel bar with all shapes (round,square,hex,special shape),also we have the most advanced heat treatment equipment, polishing equipment, cutting machine and so on.Size of cold drawn/cold drawn finished steel bars mainly from 5mm to 120mm, welcome customer all over the world send inquiry to us, we can offer free samples for quality approve before oders.

 

Contact:Ms.Phoebe Chen
Tel:86-18963469091




  

AISI 4340 / SAE 4340 Quenched and Tempered Alloy Steel Round Bar

AISI 4340 / SAE 4340 Quenched and Tempered Alloy Steel Round Bar

AISI 4340 / SAE 4340 Quenched and Tempered Alloy Steel Round Bar

Inspection equipment 
AISI 4340 / SAE 4340 Quenched and Tempered Alloy Steel Round Bar

AISI 4340 / SAE 4340 Quenched and Tempered Alloy Steel Round Bar

AISI 4340 / SAE 4340 Quenched and Tempered Alloy Steel Round Bar
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