B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts
China B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts, Find details about China B7 Steel Bar, Steel Bar from B7 4140 5140 Gr10.9 Steel Bar for High Tensile Bolts
Basic Info.
Model NO.
alloy steel bar
Special Use
Cold Heading Steel
Application
Structural Steel Bar
Grade
ASTM A193 B7 B16 4140 5140 42CrMo
Material
Alloy Steel Bar
Surface
Smooth Surface or Black Surface
Usage
Bolts and Nuts
Main Shape
Round Bar and Hex Steel Bar
Trademark
dajin
Transport Package
Anti-Rust Packaging
Specification
5-200mm
Origin
China
Model NO.
alloy steel bar
Special Use
Cold Heading Steel
Application
Structural Steel Bar
Grade
ASTM A193 B7 B16 4140 5140 42CrMo
Material
Alloy Steel Bar
Surface
Smooth Surface or Black Surface
Usage
Bolts and Nuts
Main Shape
Round Bar and Hex Steel Bar
Trademark
dajin
Transport Package
Anti-Rust Packaging
Specification
5-200mm
Origin
China
Product Desciption
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.
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 | Min Temperature | Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation | Reduction of Area | Hardness |
| Below 65mm | 593ºC | 860 | 720 | 16 | 50 | 35HRC |
| 65-100mm | 593ºC | 795 | 655 | 16 | 50 | 35HRC |
| 100-160mm | 593ºC | 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)
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.
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
You Might Also Like
Plastic Paving Concrete Mold DIY Walkway Stones Mould Landsc......
Baroque Freshwater Pearl Necklace fashion Jewelry Jewellery ......
China Professional Made Super Big Size Ductile Iron Flange P......
Supermarket Storage Container Plastic Folding Stackable Coll......
Plastic Disposable Hitachi Beckman Sample Cup
Bulk Pen Drive Wood USB Flash Drive
Debo 5 Years Warranty HPL Toilet Cubicle Board
Luxury Hotel 1500 Supreme Collection Bed Sheet Set
Sodium Hyaluronic Acid Gel Injection for Lip, Face, Nose, Br......
Fenugreek Seed Extract 4-Hydroxyisoleucine for Improve Insul......
Rechargeable Battery 25ah 3.2V LiFePO4 Battery Cell
Radial Truck Tyre 10.00r20 11.00r20 12.00r20, TBR