
ASTM A193 B7 Chemical Composition / ASTM A193 B7 Qt Round Steel Bar Manufacturer
Laiwu Xincheng Metal Co., Ltd.- Type:Alloy Steel Bar
- Standard:ASTM, A193 B7 B7m B16
- Technique:Quenched and Tempered
- Application:Die Steel Bar, High Strength Bolts, Stud, Threaded Rods
- Surface Treatment:Oiled
- Alloy:Alloy
Base Info
- Model NO.:AISI 4140 , A193 B7
- Special Use:Mold Steel, Cold Heading Steel, Oil&Gas
- Grade:ASTM A193 B7
- MOQ:2 Tons
- Straightness:Max 1mm,M
- Length:3m 12FT, 6m
- Raw Material:AISI 4140
- Heat Treatment:Quenched and Tempered
- Sizes:Metic or Pitch Size
- Transport Package:Anti-Rust Packing
- Specification:M5-M100
- Origin:China
- HS Code:72283090
- Production Capacity:3000tons,Month
Description

1.Supply Condition and Size range
Hot Rolled 4140 steel bar: Ø16mm-310mm
Forging 4140 steel bar: Ø250mm-1000mm
Cold drawn 4140 steel bar:Ø12-100mm
Q&T 4140 steel bar:Ø16-310mm
2.A193 B7 Material AISI 4140 Chemical composition:%
3.Property of ASTM A193 B7 Q&T steel round bars
Dia | Minimum temperature | Tensile strength | Yield strength | Elongation | Reduction of area | Hardness |
Below 65mm | 593 ° C | 860 | 720 | 16 | 50 | 35 HRC |
65mm to 100mm | 593 ° C | 795 | 655 | 16 | 50 | 35 HRC |
100mm to 160mm | 593 ° C | 690 | 510 | 18 | 50 | 29 HRC |
4.MOQ : 2tons per size
5.Delivery time : 7-20 days after order confirmation
6.Payment term: TT , LC ,CASH
7.Quality control of our factory:
Our factory have good QC inspection tear and full set of inspect equipment including: UT test machine, Tensile testing machine, Hardness testing machine, Dimensional measuring instrument, f, spectrometer, Metallographic microscope and so on, so that we can always supply good mateterials for various projects and industries, if you have any need for our producrs, please contact us freely.
Contact: MS Phoebe


