Product Description
ASTM A193 GR.B7 B16 B7M cold drawn steel bar QT steel bar to make bolts&nuts
High strength bolts&nuts
Threaded bar
1.ASTM A193 GR.B7 QT cold drawn steel bar
QT steel bar 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
2.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.
3..ASTM A193 Gr.B7 Cold drawn steel bar Typical applications
Fastners,high strength bolts&nuts,thread rods
4.ASTM A193 Gr.B7 cold drawn steel bar main type and avaliable sizes
5.ASTM A193 Gr.B7 Cold drawn steel bar size tolerance
h9,h10,h11 or other tolerance according to client's requirement
6.ASTM A193 Gr.B7 Cold drawn steel bar chemical composition(%)
7.ASTM A193 Gr.B7 Alternative grade in different standard
9.Straightness: 1mm/m(max)
10. Steel bar Packing:
*Bars from different heats will not be mixed and dispatched.
*Bars will be bundles and securely metal strapped in 3 min places of the bar length and tagged properly.
*For further processing products such as cold drawn/peeled or heat treated goods, plastics bag wrapped or pallet loading is available according to customer's demands.
11.Delivery time of steel bar:
7-10days of stock,30 days after order confirmed of new material
12.Payment term:TT or LC
13.Free sample:Yes
14.steel bar Inspection: Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,UT test
15.Our cold drawn factory equipments
We adopt advanced production technology and first-class processing equipments, such as heat treatment furnace, straightening machine, centerless grinding machine, polishing machine, as well as lathing and milling machine etc.
15.Our steel bar mill's certificates
ISO901&ISO.TS16949,ISO4001,OHSAS18001
Special Equipment Manufacturing License of P.R.C for pipeline plate,steel plate for boiler&Vessel;
ISO/TS16949 2009 for Manufacturing of Special steel;
Europe CE Mark Certificate;JIS MARK,KS MARK.
We have Largest inventory of ASTM A193 Gr.B7 Round Bar. ASTM A193 Gr.B7 Bars, ASTM A193 Gr.B7 Alloy Steel Round Bar Suppliers, ASTM A193 Gr.B7 Steel Bars Exporter in Turkey, ASTM A193 Gr F92 Threaded Bars, ASTM A193 Gr.B7 Round Bars Dealer in Egypt, ASTM A193 Grade B7 Steel Bar, A193 B7 Alloy Steel Black Bars Suppliers in Mumbai, India, Alloy Steel A193 B7 Bars, ASTM A193 Grade B7 Rods, ASTM A193 Grade B7 Alloy Steel Bar, Alloy Steel Gr B7 Bars Stockholder in Singapore, ASTM A193 Gr.B7 Alloy Steel Bar, ASTM A193 Alloy Steel B7 Bars, ASTM A193 Gr.B7 Square Bars Distributors in Malaysia, ASTM A193 A193 B7 Bars, ASTM A193 Gr.B7 Alloy Steel Hex Bars in Oman, ASTM A193 Gr.B7 Round Bars Suppliers, Chrome Moly Grade B7 Bar in Qatar, ASTM A193 Gr.B7 Bright Bars Stockist in Indonesia, Alloy Steel B7 Polished Bar in Jordan, Alloy Steel ASTM A193 Gr.B7 Rectangle Bar in South Africa, Alloy Steel B7 Rod Suppliers in Italy, We are india's most trusted Manufacturer, Suppliers & Exporter of ASTM A193 Gr.B7 Alloy Steel Round Bars, ASTM A193 Gr.B7 Alloy Steel Rods are Available in Different Dimensions and Specifications in CHINA.
High strength bolts&nuts
Threaded bar
1.ASTM A193 GR.B7 QT cold drawn steel bar
QT steel bar 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
2.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.
3..ASTM A193 Gr.B7 Cold drawn steel bar Typical applications
Fastners,high strength bolts&nuts,thread rods
4.ASTM A193 Gr.B7 cold drawn steel bar main type and avaliable sizes
| Round bars | 5mm-130mm |
| Suqare bar | 6*6mm-100*100mm |
| Flat bars | 3mm*20mm-50mm*100mm |
| Hex bars | 6mm-100mm |
| Bar Finsihe | Peeled, Cold Drawn, TurnedTurned & Polished, Centreless Ground |
5.ASTM A193 Gr.B7 Cold drawn steel bar size tolerance
h9,h10,h11 or other tolerance according to client's requirement
6.ASTM A193 Gr.B7 Cold drawn steel bar chemical composition(%)
| Grade | C | Cr | Si | S | Mn | P | Mo |
| ASTM A193 Gr.B7 | 0.37 - 0.49 | 0.80 - 1.10 | 0.15 - 0.35 | 0.04 max | 0.65 - 1.10 | 0.035 | 0.15 - 0.25 |
7.ASTM A193 Gr.B7 Alternative grade in different standard
| GB | 42CrMo |
| ASTM | 4140 |
| JIS | SCM440 |
| DIN | 1.7225 |
8.ASTM A193 Gr.B7 Typical Mechanical Properties
| Grade | Tensile Strength Mpa | Yield Strength Mpa | Elongation % | Reduction % | -40ºCAkv2/J | Hardness |
| 10.9 | ≥1040 | ≥940 | ≥9 | ≥48 | ≥50 | HRC32-39 |
| 8.8 | ≥830 | ≥660 | ≥12 | ≥52 | ≥70 | HRC23-34 |
9.Straightness: 1mm/m(max)
10. Steel bar Packing:
*Bars from different heats will not be mixed and dispatched.
*Bars will be bundles and securely metal strapped in 3 min places of the bar length and tagged properly.
*For further processing products such as cold drawn/peeled or heat treated goods, plastics bag wrapped or pallet loading is available according to customer's demands.
11.Delivery time of steel bar:
7-10days of stock,30 days after order confirmed of new material
12.Payment term:TT or LC
13.Free sample:Yes
14.steel bar Inspection: Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,UT test
15.Our cold drawn factory equipments
We adopt advanced production technology and first-class processing equipments, such as heat treatment furnace, straightening machine, centerless grinding machine, polishing machine, as well as lathing and milling machine etc.
15.Our steel bar mill's certificates
ISO901&ISO.TS16949,ISO4001,OHSAS18001
Special Equipment Manufacturing License of P.R.C for pipeline plate,steel plate for boiler&Vessel;
ISO/TS16949 2009 for Manufacturing of Special steel;
Europe CE Mark Certificate;JIS MARK,KS MARK.
We have Largest inventory of ASTM A193 Gr.B7 Round Bar. ASTM A193 Gr.B7 Bars, ASTM A193 Gr.B7 Alloy Steel Round Bar Suppliers, ASTM A193 Gr.B7 Steel Bars Exporter in Turkey, ASTM A193 Gr F92 Threaded Bars, ASTM A193 Gr.B7 Round Bars Dealer in Egypt, ASTM A193 Grade B7 Steel Bar, A193 B7 Alloy Steel Black Bars Suppliers in Mumbai, India, Alloy Steel A193 B7 Bars, ASTM A193 Grade B7 Rods, ASTM A193 Grade B7 Alloy Steel Bar, Alloy Steel Gr B7 Bars Stockholder in Singapore, ASTM A193 Gr.B7 Alloy Steel Bar, ASTM A193 Alloy Steel B7 Bars, ASTM A193 Gr.B7 Square Bars Distributors in Malaysia, ASTM A193 A193 B7 Bars, ASTM A193 Gr.B7 Alloy Steel Hex Bars in Oman, ASTM A193 Gr.B7 Round Bars Suppliers, Chrome Moly Grade B7 Bar in Qatar, ASTM A193 Gr.B7 Bright Bars Stockist in Indonesia, Alloy Steel B7 Polished Bar in Jordan, Alloy Steel ASTM A193 Gr.B7 Rectangle Bar in South Africa, Alloy Steel B7 Rod Suppliers in Italy, We are india's most trusted Manufacturer, Suppliers & Exporter of ASTM A193 Gr.B7 Alloy Steel Round Bars, ASTM A193 Gr.B7 Alloy Steel Rods are Available in Different Dimensions and Specifications in CHINA.