AISI 4140 / ASTM A193 B7 Cold Drawn and Q&T Steel Round Bars for Anchor Bolts / Threaded Rods

Model NO.
aisi 4140 / ASTM A193 B7
Sizes
Metric Size or Pitch Size
Straightness
Max 1mm/M
MOQ
2-3tons Per Size (One Bundle )
Delivery Condition
Quenched and Tempered
Grade
AISI 4140 /A193 B7
Transport Package
Standard Export Packing
Specification
M12-M100
Trademark
Laiwu Xincheng
Origin
China
HS Code
72283090
Production Capacity
3000tons/Month
Reference Price
$ 607.50 - 675.00
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Product Description

aisi 4140 / ASTM A193 B7 Cold Drawn and Q&T Steel Round Bars for Anchor Bolts / Threaded Rods

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.

1.Supplied size:
Delivery condition Diameter ranges
Hot rolled M12-M310
Hot rolled+Q&T(Quenched and tempered) M12-M310.
Cold drawn +Q&T(Quenched and tempered) M10-M100
Peeled / Peeled+Q&T M10-M100
Forged/Forged+Heat treatment. M250-M1000

2.Delivery condition
Hot rolled+Q&T
Cold drawn +Q&T
Peeled+Q&T

3.Raw material
Element B7 (AISI 4140)
Carbon 0.38 - 0.48%
Manganese 0.75 - 1.00%
Phosphorus, max 0.04%
Sulfur, max 0.04%
Silicon 0.15 - 0.35%
Chromium 0.80 - 1.10%
Nickel  
Molybdenum 0.15 - 0.25%

4.Property 
Grade Sizes Tensile ksi, min Yield, ksi, min Elong, %, min RA % min HBW HRC
A193 B7 Up to 2-1/2 125 105 16 50 321 max 35 max
2-5/8 - 4 115 95 16 50


AISI 4140 / ASTM A193 B7 Cold Drawn and Q&T Steel Round Bars for Anchor Bolts / Threaded Rods
5.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
6.Delivery time: within 7 days after your deposit or L/C.
7.Trade term: FOB CFR CIF
8.Mark: including steel material, heat No., pieces, weight, date and so on.
9.Quality control
1.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
2.Grain Sizes:5-8
3.Surface condition: The surface of the bar shall be free cracks, scar and wrinkles at affect the use of the billets. 
4.The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition 
shall be within the limit stipulated in the contract

AISI 4140 / ASTM A193 B7 Cold Drawn and Q&T Steel Round Bars for Anchor Bolts / Threaded Rods
AISI 4140 / ASTM A193 B7 Cold Drawn and Q&T Steel Round Bars for Anchor Bolts / Threaded Rods
AISI 4140 / ASTM A193 B7 Cold Drawn and Q&T Steel Round Bars for Anchor Bolts / Threaded Rods
AISI 4140 / ASTM A193 B7 Cold Drawn and Q&T Steel Round Bars for Anchor Bolts / Threaded Rods



 

 

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