SAE 5140 40cr SCR440 Steel Round Bar for 8.8 Grade Bolt

Product Details
Customization: Available
Type: Alloy Steel Bar
Standard: AISI, ASTM, DIN, JIS, GB, BS
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Management System Certification
ISO9001:2015
Export Year
2016-10-21
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Basic Info.

Model NO.
5140
Composition
Ferrous Steel Scrap
Technique
Hot Rolled
Shape
Bar
Surface Treatment
Polished
Special Use
High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
Application
Tool Steel Bar
Elongation
25
Strength
375-500
Poisson′s Ratio
0.25~0.33
Certificate
ISO SGS
OEM
Yes
Delivery Time
5~10 Working Days
Yield Strength
225
Transport Package
Woven Bag, Wooden Box
Specification
ISO SGS
Trademark
Taixie
Origin
Wuxi, Jiangsu
HS Code
7507120000
Production Capacity
10000tons/Y

Product Description

Product Description
SAE 5140 40Cr SCR440 Steel Round Bar for 8.8 grade bolt
SAE 5140 40Cr SCR440 Steel Round Bar for 8.8 grade bolt

We company are specialized to export kind grades of steel round bar to fastener manufacturer and fastener manufacturing field .our main grade for fasteners are :A36,SAE 5140,40Cr,Grade 55,Grade 60,B7,AISI 4140,10B21,10B33, and so on,.
If you have any inquiry, please feel free to contact me, we will be happy if we can solve problems and save your cost in your production.

SAE 5140 40Cr SCR440 Steel Round Bar for 8.8 grade bolt
1.Size range:
Sizes detailsdiameter16-300mm
length1-12m(canbe customerized)
Sizes tolerancelength-0/+50mm
Straightness3mm/m(max)

2.40cr sae 5140 for 8.8 grade fasteners--equal grades
GBASTMJISDINBSNF
40Cr5140SCr44041Cr4(1.7035)530A4042C4

3.Chemical composition
CSiMnCrNi(≤)Cu(≤)P(≤)S(≤)
0.37-0.440.17-0.370.5-0.80.8-1.00.30.030.0350.035

4.Mechanical property
Tensile strengthYild strengthElongationreduction of area
Min (%)Min (%)Min (%)Min (%)
MpaMpaMpaMpa
980785945

5.Quality control
1.Processing Line:
Iron - hot metal pretreatment - Converter - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
Electric Furnace - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
2.Gas content level:O2 - <20 ppm H2 - <2 ppm N2- <100 ppm
3.Grain Sizes:5-8
4. non-metallic inclusions contorlling level
 ABCD
 MAXMAXMAXMAX
Thin2222
Thick1111

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