AISI 4130, 4140, 4340, 1045, 8620 Round Bar
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DETAILED INFORMATION
As an alloy steel bar, AISI/SAE 4340 round bars are widely used in various industries for their strength, toughness, and wear resistance. Round bars are highly sought after in aerospace, automotive, and machinery industries due to their versatility and ability to withstand high-stress applications.
AISI/SAE 4340 refers to the specific composition of the steel. The alloy steel contains approximately 0.40% carbon, 0.70% to 0.90% chromium, 0.20% to 0.30% silicon, 1.65% to 2.00% nickel, 0.70% to 0.90% manganese, and small amounts of phosphorus and sulfur. Due to these alloying elements, AISI/SAE 4340 round bars have unique properties.
High tensile strength refers to the maximum stress a material can withstand before breaking. The combination of chromium, nickel, and manganese in AISI/SAE 4340 enhances the steel’s hardenability and overall mechanical properties. Round bars with high tensile strength are suitable for crankshafts, axles, and gears.
AISI/SAE 4340 round bars are adamant. A material’s toughness is determined by its ability to absorb energy without fracturing. Aircraft landing gears and transmission shafts require this property to withstand impact and shock loads. Even under high-stress conditions, AISI/SAE 4340 maintains integrity and resists deformation.
AISI/SAE 4340 round bars are also known for their exceptional wear resistance. A material’s wear resistance refers to its ability to resist surface damage caused by friction or abrasion. A combination of chromium and nickel in AISI/SAE 4340 enhances its hardness, improving wear resistance. As a result, round bars can be used in applications where they are in contact with other surfaces, such as bearings, gears, and tooling. AISI/SAE 4340 provides extended service life and lower maintenance costs due to its enhanced wear resistance.
Heat treatment can further enhance the mechanical properties of AISI/SAE 4340 round bars. Steel is heated to a specific temperature and then cooled rapidly or gradually to achieve desired hardness, strength, and toughness. Quenching and tempering are standard methods for AISI/SAE 4340 round bars. Tempering reduces brittleness and imp,roves toughness while quenching increases hardness. Round bars can be tailored to meet specific application requirements.
To conclude, AISI/SAE 4340 round bars are alloy steel bars known for their high tensile strength, toughness, and wear resistance. Diverse industries use these bars for their strength, durability, and reliability. AISI/SAE 4340’s unique alloy composition and proper heat treatment ensure optimal performance in high-stress environments. A reliable and versatile solution for demanding applications, AISI/SAE 4340 round bars can be found in aerospace, automotive, or machinery.
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Adoni, Amaravati, Anantapur, Chandragiri, Chittoor, Dowlaiswaram ,Eluru, Guntur, Kadapa, Kakinada, Kurnool, Machilipatnam, Nagarjunakoṇḍa, Rajahmundry, Srikakulam, Tirupati, Vijayawada, Visakhapatnam, Vizianagaram, Yemmiganur, Itanagar, Dhuburi, Dibrugarh, Dispur, Guwahati, Jorhat, Nagaon, Sivasagar, Silchar, Tezpur, Tinsukia, Ara, Barauni, Begusarai, Bettiah, Bhagalpur, Bihar, Sharif, Bodh Gaya, Buxar, Chapra, Darbhanga, Dehri, Dinapur Nizamat, Gaya, Hajipur, Jamalpur, Katihar, Madhubani, Motihari, Munger, Muzaffarpur, Patna, Purnia, Pusa, Saharsa, Samastipur, Sasaram, Sitamarhi, Siwan, Chandigarh, Ambikapur, Bhilai, Bilaspur, Dhamtari, Durg, Jagdalpur, Raipur, Rajnandgaon, Daman, Diu, Silvassa, Delhi, New Delhi, Madgaon, Panaji, Ahmadabad, Amreli, Bharuch, Bhavnagar, Bhuj, Dwarka, Gandhinagar, Godhra, Jamnagar, Junagadh, Kandla, Khambhat, Kheda, Mahesana, Morbi, Nadiad, Navsari, Okha, Palanpur, Patan, Porbandar, Rajkot, Surat, Surendranagar, Valsad, Veraval, Ambala, Bhiwani, 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Siuri, Tamluk, Titagarh
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Afghanistan, Albania, Algeria, Andorra, Angola, Antigua-Barbuda Argentina, Armenia, Australia, Austria, Azerbaijan, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bhutan, Bolivia, Bosnia-Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Burkina-Faso, Burundi, Côte d’Ivoire, Cabo Verde, Cambodia, Cameroon, Canada, Central African Republic, Chad, Chile, China, Colombia, Comoros, Congo (Congo-Brazzaville), Costa-Rica, Croatia, Cuba, Cyprus, Czechia (Czech Republic), Democratic Republic of the Congo, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Eswatini (fmr. “Swaziland”), Ethiopia, Fiji, Finland, France, Gabon, Gambia, Georgia, Germany, Ghana, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Holy See, Honduras, Hungary, Iceland, India, Indonesia, Iran, Iraq, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Mauritania, Mauritius, Mexico, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Myanmar (formerly Burma), Namibia, Nauru, Nepal, Netherlands, New Zealand, Nicaragua, North Korea, North Macedonia, Norway, Oman, Pakistan, Palau, Palestine-State, Panama, Papua, New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Romania, Russia, Rwanda, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Korea, South Sudan, Spain, Sri Lanka, Sudan, Suriname, Sweden, Switzerland, Syria, Tajikistan, Tanzania, Thailand, Timor-Leste, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda, Ukraine, United Arab Emirates, United Kingdom, United States of America, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe.
AISI 4130, 4140, 4340, 1045, 8620 Steel round Bars Specification
Grade |
DIN |
UNS |
SUS |
AISI 4130 |
1.7218 |
G41300 |
25CrMo4 |
AISI 4140 |
1.7225 |
G41400 |
42CrMo4 |
AISI 4340 |
1.6565 |
G43400 |
40NiCrMo6 |
AISI 52100 |
1.3505 |
G52986 |
100Cr6 |
AISI 4145 |
UNS G41450 |
Grade |
Condition |
Shape |
Finish |
4130 |
Annealed |
Round Bars |
Cold Rolled |
4130 |
Annealed |
Round Bars |
Ground |
4130 |
Annealed |
Round Bars |
Hot Rolled |
4130 |
Annealed |
Round Bars |
Rough Turned |
4130 |
Heat Treated |
Round Bars |
Cold Rolled |
4130 |
Heat Treated |
Round Bars |
Ground |
4130 |
Heat Treated |
Round Bars |
Hot Rolled |
4130 |
Heat Treated |
Round Bars |
Rough Turned |
4130 |
Normalised |
Round Bars |
Cold Rolled |
4130 |
Normalised |
Round Bars |
Ground |
4130 |
Normalised |
Round Bars |
Hot Rolled |
4130 |
Normalised |
Round Bars |
Rough Turned |
Chemical Composition Standard Of UNS G41300 Square Bar
Grade |
C |
Mn |
Si |
P |
S |
Fe |
Mo |
Ni |
Cr |
AISI 4130 |
0.28-0.33 |
0.40-0.60 |
0.15-0.35 |
0.035 max |
0.025 MAX |
97.3-98.22 |
0.15-0.25 |
0.50 max |
0.80-1.10 |
Mechanical And Physical Properties Of AISI 4130 Round Bars & Rods Chart
Density |
Melting Point |
Tensile Strength |
Yield Strength (0.2%Offset) |
Elongation |
S | Fe | Mo | Ni | Cr |
7.85 g/cm3 |
1432 ℃ |
560 |
460 |
21.50% |
0.025 MAX | 97.3-98.22 | 0.15-0.25 | 0.50 max | 0.80-1.10 |
Equivalent Grades Of AISI 4130 Steel Round Bars
STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
BS |
EN |
AISI 4130 |
1.7218 |
G41300 |
JIS G4105 |
BS 970 |
25CrMo4 |
ASTM A276 AISI 316 Ti Stainless Steel Bar Equivalent Grades
STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
BS |
GOST |
AFNOR |
EN |
SS 316TI |
1.4571 |
S31635 |
SUS 316Ti |
320S31 |
08Ch17N13M2T |
Z6CNDT17‐12 |
X6CrNiMoTi17-12-2 |
Why Buy AISI 4130 Bars & Rods From Us?
AISI 4130 Round Bar |
Chrome Moly 4140 Round Bar |
Alloy Steel 4340 Bright Bar |
AISI 8620 Alloy Steel Polish Bar |
Carbon Steel 1045 Hex Bars |
AISI UNS G41300 Forged Bar |
Chrome Moly 4130 Bars & Rods |
Alloy Steel UNS G41400 Square Bars |
AISI UNS G43400 Flat Bar Distributor |
AISI 1045 Carbon Steel Rectangular Bar |
AISI 4130 Cold Finish Round Bar Manufacturer |
Alloy Steel DIN 1.7218 Black Bar |
AISI DIN 1.7225 Square Bars |
Alloy Steel 4140 Threaded Bar |
SAE 8620 Rods Supplier |
SAE 1045 Carbon Steel Half Round Bar |
4130 Alloy Steel Hexagonal Bar |
Alloy Steel 4140 Cold Drawn Round bar |
AISI 4340 Pump Shaft Quality Bar Stockist |
4130 Chrome Moly Round Bar |
Alloy Steel 8620 Rod Exporter |
Alloy Steel 4130 Round Bar Dealer |
AISI 4130, 4140, 4340, 1045, 8620 Steel round Bars price list
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AISI Alloy Steel / Carbon Steel Round Bar / Rods other Available Types
AISI 4130 Round Bar |
Chrome Moly 4140 Round Bar |
Alloy Steel 4340 Bright Bar |
AISI 8620 Alloy Steel Polish Bar |
Carbon Steel 1045 Hex Bars |
AISI UNS G41300 Forged Bar |
Chrome Moly 4130 Bars & Rods |
Alloy Steel UNS G41400 Square Bars |
AISI UNS G43400 Flat Bar Distributor |
AISI 1045 Carbon Steel Rectangular Bar |
AISI 4130 Cold Finish Round Bar Manufacturer |
Alloy Steel DIN 1.7218 Black Bar |
AISI DIN 1.7225 Square Bars |
Alloy Steel 4140 Threaded Bar |
SAE 8620 Rods Supplier |
SAE 1045 Carbon Steel Half Round Bar |
4130 Alloy Steel Hexagonal Bar |
Alloy Steel 4140 Cold Drawn Round bar |
AISI 4340 Pump Shaft Quality Bar Stockist |
4130 Chrome Moly Round Bar |
Alloy Steel 8620 Rod Exporter |
Alloy Steel 4130 Round Bar Dealer |
Industry Applications Of AISI 4130, 4140, 4340, 1045, 8620 Steel Round Bar :
- Electronic Industries
- Chemical Industries
- Soap Industries
- Aerospace Industries
- Food Industries
- Caustic handling equipment
- Fabrication Industries
- Cement Industries
- Sugar Industries
- Power Plant
- Steel Plant