B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts

Model NO.
alloy steel bar
Special Use
Cold Heading Steel
Application
Structural Steel Bar
Surface
Smooth Surface or Black Surface
Main Shape
Round Bar and Hex Steel Bar
Usage
Bolts and Nuts
Material
Alloy Steel Bar
Grade
ASTM A193 B7 B16 4140 5140 42CrMo
Transport Package
Anti-Rust Packaging
Specification
5-200mm
Trademark
dajin
Origin
China
Production Capacity
3000
Reference Price
$ 630.00 - 900.00
Contact Us

Product Description

ASTM A193 B7 4140  GR10.9 QT steel bar for high strength bolts

  Alloy Steel ASTM A193 Grade B7 Round Bars


QT steel bar B7 Used in the manufacture of shafts, connecting rods, gears and bolts
Harden ability is better, High overall mechanical properties, good low temperature impact toughness, low notch sensitivity, with temper brittleness

Process for Steel round bar
Blast Furnance→ Molten Iron Pretreatment→Converter→LF→VD/RH→ContinuousCasting→Hot Rolling(KOCKS)→ Heat Treatment→ UT Inspection→Finish Product
EAF→LF→VD/RH→ Continuous Casting→Hot Rolling(KOCKS)→ Heat Treatment→ UT Inspection→ Finish Product .
B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts
B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts
B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts
B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts

ASTM A193 Gr.B7     Cold drawn steel bar Typical applications

Fastners,high strength bolts&nuts,thread rods

Astm A193 B7/aisi4140/sae4140 steel Chemical composition
C Si Mn P S Cr Mo
0.37-0.48 0.15-0.35 0.7-1.10 Max0.03 Max0.03 0.75-1.20 0.15-0.25

Typical  properties of AISI / SAE 4140 Steel Q&T to ASTM A193 B7
 
Dia M in Temperature Tensile Strength(Mpa) Yield Strength(Mpa) Elongation Reduction of Area Hardness
Below 65mm 593 ºC 860 720 16 50 35HRC
65-100mm 593 ºC 795 655 16 50 35HRC
100-160mm 593 ºC 690 510 18 50 29HRC

ASTM A193 B7  4140 STEEL BAR Delivery condition :
Hot rolled 
Hot rolled+Q&T(Quenched and tempered)
Hot rolled+Annealed+Cold Drawn
Hot rolled+Annealed+Cold Drawn+Q&T(Quenched and tempered)
Hot rolled+Annealed+Peeled+Q&T(Quenched and tempered)


B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts
B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts
B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts

A193 Grade B7 Class Bolts are manufactured from AISI 4140/4142 low Carbon Alloy Steel Grades followed by quencing & tempering. We manufacture these Bolts with great precision & Quality. These grade bolts are also denoted as Grade 7 Bolts,B7 Bolts etc. We Also offer B7 Studs/B7 threaded bars/B7 Threaded rods.TorqBolt Stocks & Supply these Bolt Fasteners in various sizes & Coatings.
B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts
B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts
B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts


For quick Quote on A193 Grade B7 Bolts/Studs, please contact our Salesteam.
Related keywords for ASTM A93 B7 Bolts : A193 B7 Bolts,Grade B7 Bolts,A193 Grade B7,SA 193 B7 bolts,B7 Studs,B7 Studs Material,B7 Threaded Rod,B7 Threaded Bar etc

 

 

Alloy Steel

LEGALIS.IT, 2023