LC4140 Steel Round Bar Quench & Tempered to ASTM A193 B7 properties
SAES 4140 STEEL QUENCHED AND TEMPERED TO ASTM A193 B7 PROPERTIES, USED FOR THREADED ROD, ANCHOR BOLTS, STUD BOLTS AND SO ON.
Main Sizes:1/4'' to 4''
1.AISI / SAE 4140 chemical composition
| CHEMICAL ANALYSIS |
| C% |
Carbon 0.38 - 0.43 |
| Mn% |
Manganese 0.75 - 1.00 max |
| P% |
Phosphorus 0.035 max |
| S% |
Sulfur 0.040 max |
| Si% |
Silicon 0.20 - 0.35 |
| Cr% |
Chromium 0.80 - 1.10 |
| Mo% |
Molybdenum 0.15 - 0.25 |
2.AISI / SAE 4140 Steel Q&T to ASTM A193 B7 properties
| Grade |
Size |
Tensile ksi, min |
Yield, ksi, min |
Elong, %, min |
RA % min |
HBW |
HRC |
| B7 |
Up to 2-1/2 |
125 |
105 |
16 |
50 |
321 max |
35 max |
| 2-5/8 - 4 |
115 |
95 |
16 |
50 |
| 4-1/8 - 7 |
100 |
75 |
18 |
50 |
3.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)
4.ASTM A193 B7
ASTM A193 is alloy steel bolting material for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.
.
Material according to ASTM A193 B7 is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.
5.MOQ:1ton per size
6.Straightness: max 1mm/m , so that it can protect the moulds and gurantee smoothly producing during the threading and machining.
7.Payment terms: T/T or L/ C
(1)30% paid by T/T and rest 70% by T/T upon the copy of B/B.
(2)100% irrevocable L/C at sight
8.Delivery time:within 7 days after your deposit or L/C.
9.Trade term: FOB CFR CIF
10. Mark: including steel material, heat No., pieces, weight, date and so on.
11.Quality control:
We company 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.
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