menu

4340 Alloy Bar Suppliers | 4340 Alloy Bar Price in india

HomeRound Bars4340 Alloy Bar
HomeRound Bar/Rods

4340 round bar price, 4340 bar sizes, 4340 steel bar properties, Round Bar Latest Price in India

Comprehensive range of 4340 alloy bar for automotive, textile, fabrication, construction, cement, ship building, paper and pulp, defence, heavy earth moving equipments or aerospace.., For More About 4340 bar sizes, 4340 steel bar properties, 4340 High Tensile Steel round bar price, 4340 round bar specification, 4340 round bar weight Plz Visit Us

25 years of world class manufacturing of 4340 alloy bar, 4340 bar suppliers, 4340 bar sizes, 4340 bar ams 6414, 4340 bar stock houston, 4340 bar houston, 4340 bar stock, 4340 flat bar, 4340 steel bar suppliers, 4340 square bar, 4340 annealed bar, renowed & trusted manufacturer, exporter in india of 4340 bar. manufacturing 4340 round bar as per international standards

Supplying 4340 aq bar, aisi 4340 bar, 4340 forged bar, 4340 steel flat bar, 4340 ht flat bar, 4340 hollow bar, 4340 hex bar In India At Factory Price

4340 Alloy Bar Suppliers| 4340 Alloy Bar Price in india

High Tensile Steel Bar Price in India

High Tensile Steel 300M Bars Price in India
US $1000-2000 / Price Per Ton
US $1-15 / Price Per Kg (Kilogram)
High Tensile Steel 4140 Bars Price in India
US $500-2000 / Price Per Ton
US $1-15 / Price Per Kg (Kilogram)
High Tensile Steel 4145H Bars Price in India
US $500-12000 / Price Per Ton
US $1-8 / Price Per Kg (Kilogram)
High Tensile Steel 4340 Bars Price in India
US $700-1800 / Price Per Ton
US $1-8 / Price Per Kg (Kilogram)
High Tensile Steel EN25 Bars Price in India
US $700-1200 / Price Per Ton
US $2-4 / Price Per Kg (Kilogram)
High Tensile Steel EN26 Bars Price in India
US $800-1200 / Price Per Ton
US $2-4 / Price Per Kg (Kilogram)


Give us a call today to get all the information, +91-98210 71212, If you're looking to buy or sell 4340 Alloy Bar, we can help., call to our Distributor in India or mail us to sales@technicalmetalcorp.com for instant free quote of 4340 Alloy Bar

Bar Properties

Grade 4340 Bars: Annealed / Normalized & Tempered Properties

GRADE
SHAPE
SIZE RANGE
CONDITION OF STEEL
SPECIFICATION
RELATIVE MACHINABILITY BASED ON AISI 1212 100%
 4340  ROUNDS  1/2"- 11"
 HOT ROLLED M.S. & ANNEALED 235 HBW MAX
ASTM A29/A322
 57%
 10" - 30"
 FORGED & ROUGH TURNED & ANNEALED 240 HBW MAX
 ASTM A29/A322
 57%
 1/2" - 3 1/2"
 COLD FINISHED & ANNEALED 241 HBW MAX
 ASTM A29/A108
 57%
E4340 AQ
ROUNDS


1/4" - 11/2"
COLD FINISHED, ANNEALED 255 HBW MAX
AMS 6415/2301
57%
1" - 10 1/2"
HOT ROLLED M.S., ANNEALED 235 HBW MAX
57%
HEXAGONS
5/8" - 2"
COLD FINISHED & ANNEALED 255 HBW MAX
57%
SQUARES
1/2" - 2" 
COLD FINISHED & ANNEALED 255 HBW MAX
57%
FLATS


1/4"X1" MIN. 
1 1/2"X6" MAX
COLD FINISHED & ANNEALED 255 HBW MAX
57%
1 3/4"X 2" MIN
4" X 6" MAX
HOT ROLLED M.S., ANNEALED 235 HBW MAX
57%
E4340 
PREMIUM 
AQ (VAR)
ROUNDS


1 3/8" - 7 1/2"
HOT ROLLED M.S., ANNEALED 235 HBW MAX
AMS 6414/2300


57%
1" - 8 1/2"
NORMALIZED & TEMPERED 269 HBW MAX
57%
E4340 300

PREMIUM
AQ (VAR)
ROUNDS
1" - 7"
HOT ROLLED M.S., NORMALIZED, & TEMPERED - 311 HBW MAX
AMS 6417/2300
57%

Castle 4340 annealed hot roll bars are 80% minimum lamellar pearlite for improved machinability.

Grade 4340 Quenched and Tempered "Stress Free" Bar: Minimum Properties 

SPEC
SIZE RANGE
TENSILE-KSI
YIELD-KSI
ELONGATION-%
RED. OF AREA-%
285/341 HBW
ASTM A434-
CLASS BD
HR ROUNDS & 
COLD FINISHED
(1-6")

TO 1.5" 
155
130
14
35
 >1.5" TO 2.5"
150
120
14
35
 >2.5" TO 4"
140
110
14
35
 >4" TO 7"
135
105
14
35
 >7" TO 9.5"
130
100
14
35
285/341 HBW
ROUNDS
 >9.5" TO 12"
REPORTED
REPORTED
REPORTED
REPORTED

Grade 4340 Quenched and Tempered, Forged, Rough Turned Bar Properties

SPEC
SIZE RANGE
TENSILE- KSI
YIELD- KSI
ELONGATION- %
RED. OF AREA-%
300/340 HBW
FORGED& RT

10-1/2" TO 30"
NA
NA
NA
NA

4340 High Tensile Steel

4340 is a 1.8% nickel - chromium - molybdenum high hardenability high tensile steel - generally supplied hardened and tempered in the tensile range of 930 - 1080 Mpa (condition U) - (Rc 28 - 36).. Characterised by high strength and toughness in relatively large sections. Pre hardened and tempered 4340 can be further surface hardened by flame or induction hardening and by nitriding. 4340 is used in most industry sectors for applications requiring higher tensile/yield strength than 4140 can provide. Typical applications are: Heavy Duty Shafts, Gears, Axles, Spindles, Couplings, Pins etc
Colour Code Stocked Sizes
Green & Yellow (Bar End)

4340 Alloy Bar Suppliers| 4340 Alloy Bar Price in india
Rounds 36 mm to 500 mm Diameter
Bar Finish
Peeled, Turned and Polished, or Hot Rolled.
Related Specifications
Australia AS 1444-1996-4340
Germany W.Nr 1.6565 40NiCrMo6
Great Britain BS970-1955 EN24

BS970 Part 3:1991 - 817M40
Japan JISG 4103 SNCM439

JISG 4103 SNCM8
USA AISI 4340

ASTM A29/A29M-1991 4340 ASTM A322 4340 ASTM A331 4340 Cold Finished SAE 4340 UNS G43400
Chemical Composition (Base Material)
Min. % Max. %
Carbon 0.37 0.44
Silicon 0.10 0.35
Manganese 0.55 0.90
Nickel 1.55 2.00
Chromium 0.65 0.95
Molybdenum 0.20 0.35
Phosphorous 0 0.04
Sulphur 0 0.04
Mechanical Property Requirements for Steels in the Heat-Treated Condition for Black,Turned, Peeled or Ground Finish to AS1444-1996 4340
Mechanical Property Designation T *U V W X Y Z
Limited Ruling Section (mm) 150 100 63 30 30 30 30
Tensile Strength (Min.) 850 930 1000 1080 1150 1230 1550
Tensile Strength (Max.) 1000 1080 1150 1230 1300 1380
0.2% Proof Stress Mpa (Min.) 665 740 835 925 1005 1080 1125
Elongation on 5.65√S0 % 13 12 12 11 10 10 5
Izod Impact J (Min.) 54 47 47 41 34 24 10
Charpy Impact J (min.) 50 42 42 35 28 20 9
Brinell Hardness HB (Min.) 248 269 293 311 341 363 444
Brinell Hardness HB (Max.) 302 331 352 375 401 429
*Material stocked generally in condition U.

Check test certificate if critical for end use.
Forging
Heat to 1150 oC - 1200 oC maximum, hold until temperature is uniform throughout the section.

Do not forge below 850 oC.Following forging operation the work piece should be cooled as slowly as possible in sand or dry lime etc...
Heat Treatment
Annealing
Heat to 800 oC - 850 oC, hold until temperature is uniform throughout the section and cool in furnace.
Flame or Induction Hardening
4340 hardened and tempered bar can be further surface hardened by either the flame or induction hardening methods resulting in a case hardness in excess of Rc 50. Parts should be heated as quickly as possible to the austenitic temperature range (830 oC - 860 oC) and required case depth followed by an immediate oil or water quench, depending upon hardness required, workpiece size/shape and quenching arrangements.

Following quenching to hand warm, most components should be tempered between 150 oC - 200 oC to remove quenching stresses in the case. This will have little effect on case hardness..
Hardening
Heat to 830 oC - 860 oC, hold until temperature is uniform throughout the section, soak for 10 - 15 minutes per 25 mm section, and quench in oil, water, or polymer as required.*Temper immediately while still hand warm.
Nitriding
4340 hardened and tempered bar can also be successfully nitrided, giving a surface hardness of up to Rc 60. Nitriding is carried out at 490 oC - 530 oC, followed by slow cooling (no quench) reducing the problem of distortion. Parts can therefore be machined to near final size, leaving a grinding allowance only. The tensile strength of the core is usually not affected since the nitriding temperature range is generally below the original tempering temperature employed.

N.B. Nickel is inert to the action of nitrogen and in general resists its diffusion into steel. This can result in lower case hardness or longer nitriding cycle times for steels containing nickel such as 4340.
Stress Relieving
Heat to 600 oC - 650 oC, hold until temperature is uniform throughout the section, soak for 1 hour per 25 mm section, and cool in still air.
Tempering
Re-heat to 450 oC - 660 oC as required, hold until temperature is uniform throughout the section, soak for 1 hour per 25 mm of section, and cool in still air.

N.B. Tempering should be avoided if possible within the range 250 oC - 450 oC due to temper brittleness.
Notes on Heat Treatment
Heating temperatures, rate of heating and soaking times will vary due to factors such as work piece size/shape also furnace type employed, quenching medium and work piece transfer facilities etc..Please consult your heat treater for best results.
Machining
4340 in the hardened and tempered as supplied condition is still regarded as being readily machinable and operations such as sawing, turning, drilling, etc. can be carried out satisfactorily using machine manufacturers recommendations for suitable tool type - feeds and speeds.
Welding
Welding of 4340 in the hardened and tempered condition (as normally supplied), is not recommended and should be avoided if at all possible, as the mechanical properties will be altered within the weld heat affected zone. It is preferred that welding be carried out on 4340 while in the annealed condition, and that the work piece, immediately on cooling to hand warm, is then stress relieved at 640 oC - 660 oC prior to hardening and tempering. If welding in the hardened and tempered condition is really necessary, then the work piece, immediately on cooling to hand warm, should be if possible stress relieved at 15 oC below the original tempering temperature (if known).
Welding Procedure
Welding of 4340 in whatever condition should always be carried out using low hydrogen electrodes - please consult your welding consumables supplier.
Suggested pre-heat temperature
Section 25 mm 40 mm 50 mm 75 mm 150 mm 200 mm +
oC 370 400 425 455 510 550
Post Welding
Maximum cooling rate 95 oC per hour down to 95 oC, follow by cooling in still air. N.B. No draught. It is recommended that the work piece if possible is wrapped in an heat resistant blanket or buried in sand etc..
Technical Metal Corporation believes the information provided is accurate and reliable. However no warranty of accuracy, completeness or reliability is given, nor will any responsibility be taken for errors or omissions.

 

Give us a call today to get all the information, +91-98210 71212, If you're looking to buy or sell Stainless Steel Round Rod/Bar, we can help., call to our Distributor in India or mail us to sales@technicalmetalcorp.com for instant free quote of Stainless Steel Round Rod/Bar

INDUSTRY WE SERVE mm

  • » 4340 Alloy Bar uses in Oil and Gas Pipeline
  • » 4340 Alloy Bar uses in Chemical Industry
  • » 4340 Alloy Bar uses in Plumbing
  • » 4340 Alloy Bar uses in Heating
  • » 4340 Alloy Bar uses in Oil & Gas Industry
  • » 4340 Alloy Bar uses in Water Supply Systems
  • » 4340 Alloy Bar uses in Paper & Pulp Industry
  • » 4340 Alloy Bar uses in Power Plant
  • » 4340 Alloy Bar uses in Fabrication Industry
  • » 4340 Alloy Bar uses in General purpose applications
  • » 4340 Alloy Bar uses in Food Processing Industry
  • » 4340 Alloy Bar uses in Structural Pipe
  • » 4340 Alloy Bar uses in Heat Exchangers
  • » 4340 Alloy Bar uses in also used for other industrial purpose etc.

OUR CLIENTS IN Mumbai, Chennai, Bengaluru, Pune, Ahmedabad, Houston, Dubai, Singapore, Hyderabad, Navi Mumbai, Bangkok, Jakarta, Vadodara, Seoul, London, Kuala Lumpur, New Delhi, Abu Dhabi, Tehran, Doha, Madrid, Calgary, Riyadh, Istanbul, Kolkata, Coimbatore, Pimpri-Chinchwad, Dammam, Perth, Busan, Santiago, Noida, Milan, Mexico City, Al Jubail, Sydney, Gurgaon, Sao Paulo, Karachi, Sharjah, Edmonton, Jeddah, Lahore, Melbourne, Ho Chi Minh City, Surabaya, Lagos, Toronto, Bogota, Hong Kong, Kochi, Osaka, Montreal, Cairo, Ajman, Manama, New York, Warsaw, Surat, Buenos Aires, Indore, La Victoria, Chicago, Baku, Ulsan, Tiruchirappalli, Islamabad, Pattaya City, Rio de Janeiro, Chandigarh, Vung Tau, Ankara, Los Angeles, Thane, Medan, Lucknow, Bhopal, Shah Alam, Baton Rouge, Minato, Vasai, Batam, Brisbane, Jaipur, Vancouver, Aberdeen, Faridabad, Yokohama, Monterrey, Dallas, San Antonio, Hanoi, Nashik, Paris, Zagreb, Tel Aviv-Yafo, Quezon City, Bhubaneswar, Mississauga, Alexandria, Kobe, Bucharest, Tunis, New Cairo City, Budapest, Visakhapatnam, San Donato Milanese, Rome, Johor Bahru, Tulsa, Quito, Hamilton, Ciudad del Carmen, Saint Petersburg, Cape Town, Ankleshwar, Vienna, Gimhae-si, Amsterdam, Auckland, Chuo, The Woodlands, Sofia, Seville, Tangerang, Petaling Jaya, Cebu City, Krakow, Gdansk, Sandton, Al Khobar, Adelaide, Berlin, Giza, Mashhad, Genoa, Rotterdam, Makati, Dhahran, Izmir, Phoenix, New Orleans, Belgrade, Laem Chabang, Ras Al-Khaimah, Quebec City, Regina, Prague, Copenhagen, Barcelona, Kuantan, Muntinlupa, Moscow, Washington, Seattle, Milwaukee, Caracas, Tallinn, Minsk, Brno, Frankfurt, Lyon, Birmingham, Sheffield, Cilegon, Patna, Anand, Rajkot, Baghdad, Chiyoda, Colombo, Casablanca, Kota Kinabalu, Lisbon, Kyiv, Pasadena, Kalyan, Stavanger, Vaughan, Essen, Guwahati, Kolhapur, Nagpur, Haifa, Atyrau, Ansan-si, Santiago de Queretaro, Kuching, The Hague, Plock, Port-of-Spain, Cleveland, Portland, Pittsburgh, Austin, Johannesburg, Puchong, Vapi, Ambernath, Thoothukudi, Kaunas, Accra, Pengerang, Oslo Municipality, Rosario, Wednesbury, Bekasi, Rawalpindi, Ploiesti, Denver, Boston, Greenville

Cities We Deliver To


Countries We Deliver To


4340 bar suppliers, 4340 bar sizes, 4340 bar ams 6414, 4340 bar stock houston, 4340 bar houston, 4340 bar, 4340 bar stock, 4340 round bar, 4340 flat bar, 4340 steel bar suppliers, 4340 square bar, 4340 alloy bar

4340 annealed bar, 4340 aq bar, aisi 4340 bar, 4340 forged bar, 4340 steel flat bar, 4340 ht flat bar, 4340 hollow bar, 4340 hex bar, 4340 round bar houston tx, 4340 round bar houston
4340 hr ht bar, 4340 steel hollow bar, 4340 steel bar properties, 4340 round bar price, 4340 rectangular bar, 4340 round bar sizes, 4340 round bar suppliers, 4340 round bar specification, 4340 round bar weight, grade 4340 round bar, 4340 square bar stock, 4340 round bar stock, 4340 heat treated bar