AISI ASTM 4330 Engineering Steel
1: AISI 4330 steel introduction
Alloy Steel 4330, also sold as AISI 4330, is a high-strength, chromium, nickel, and molybdenum alloy. Alloy Steel 4330 is heat-treatable, and offers good formability. The alloy is machinable in the annealed, normalized, and tempered conditions, but not as easily in a hardened condition. Users will find that welding is possible by most conventional methods.
2: AISI 4330 Steel equivalent
| Country |
China |
Japan |
Germany |
USA |
British |
| Standard |
GB/T 3077 |
JIS G4105 |
DIN (W-Nr.)
EN 10250 |
AISI/ASTM
ASTM A29 |
BS 970 |
| Grade |
/ |
/ |
/ |
4330 |
/ |
3: AISI 4330 steel chemical composition
| Grade |
C |
Si |
Mn |
Cr |
Mo |
Ni |
| 4330 |
0.20-0.30 |
≤0.80 |
≤ 1.0 |
0.40-0.60 |
0.30-0.50 |
1.0-1.50 |
4: AISI 4330 steel mechanical properties(for guidance only)
| Grade |
Tensile strength
σb(MPa) |
Yield strength
σs (MPa) |
Elongation
δ5 (%) |
Hardness, Brinell |
| 4330 |
≥ 860 MPa |
≥ 690 MPa |
≥ 15.0 % |
285 |
5: AISI 4330 steel overviews
| Size |
Round |
Dia 6-1200mm |
| Plate/Flat/Block |
Thickness
6mm-500mm |
Width
20mm-1000mm |
| Heat treatment |
Normalized ; Annealed ; Quenched ; Tempered |
| Surface condition |
Black; Peeled; Polished; Machined; Grinded; Turned; Milled |
| Delivery condition |
Forged; Hot rolled; Cold drawn |
| Test |
Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. |
| Payment terms |
T/T;L/C;/Money gram/ Paypal |
| Trade terms |
FOB; CIF; C&F; etc.. |
| Delivery time |
30-45 days |
| Application |
AISI 4330 steel are used in aircraft landing gears, shafts or axels for power transmission and gears. |
6: Delivery condition
For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
Hunan Qilu Industrial Co., Ltd has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.
Hunan Qilu Industrial Co., Ltd were already engaged in exporting steel for 11 years, could supply a great variety of hot forged,
hot rolled and
cold drawn Steels, including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.
Since 2008 year, Hunan Qilu Industrial has the right to export all
FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.
Qilu Industrial is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.
The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.
Any interests in our company and products, please feel free to contact us for quotation. We warmly welcome you to our factory.
Hunan Qilu Industrial CO., LTD
Web: qilusteel.en.made-in-china.com
Tel: 86-731-85185769
Fax: 86-0731-85185771
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