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AISI Steel
Production specification
Square-shape steel: 1mm to 4000mm
Plate steel:0.1mm to 4000mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-1800mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
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AISI Steel
At Longhai Steel we can supply you with AISI steel grades and also AISI equivalent grades to British & European standards. Please contact us with your specific requirements and we shall endeavour to help. AISI steel grades (American Iron & Steel Institute) are becoming increasingly popular around the world, primarily due to their use in the oil and gas industry. We hold a comprehensive range of stock in AISI material and AISI equivalent specifications. Of AISI steel grades available the majority are as carbon steels and steel/" target="_blank" class="keylink">alloy steels. AISI carbon steels and steel/" target="_blank" class="keylink">alloy steels are usually given a four digit number, the first two digits indicate the alloying element in the AISI specification and the last two digits indicate the amount of carbon in the specification. AISI materials grades are shown in the table below, as to how the four digit number indicates the type it refers to. |
Carbon Steel |
10XX |
|
|
11XX |
Resulphurised free cutting |
|
12XX |
Resulphurised - Rephosphorised free cutting |
|
15XX |
|
Manganese Steel |
13XX |
Mn 1.75% |
Nickel Steel |
23XX |
Ni 3.50% |
|
25XX |
Ni. 5.00% |
Nickel Chromium Steel |
31XX |
Ni 1.25%, Cr 0.65-0.80% |
|
32XX |
Ni 1.75%, Cr 1.07% |
|
33XX |
Ni 3.50%, Cr 1.50-1.57% |
|
34XX |
Ni 3.00%, Cr 0.77% |
Molybdenum Steel |
40XX |
Mo 0.20-0.25% |
|
44XX |
Mo 0.40-0.52% |
Chromium Molybdenum Steel |
41XX |
|
Nickel Chromium Molybdenum Steel |
43XX |
|
|
47XX |
|
Nickel Molybdenum Steel |
46XX |
|
|
48XX |
Ni 0.85-1.82%, Mo 0.20-0.25% |
Chromium Steel |
50XX |
Ni 3.50%, Mo 0.25% |
|
51XX |
Cr 0.27-0.65% |
|
50XXX |
Cr 0.80-1.05% |
|
51XXX |
Cr 0.50% C 1.00% min |
|
52XXX |
|
Chromium Vanadium Steel |
61XX |
Cr 0.60-0.95%, V 0.10-0.15% |
Tungsten Chromium Steel |
72XX |
W 1.75%, Cr 0.75% |
Nickel Chromium Molybdenum Steel |
81XX |
|
|
86XX |
|
|
87XX |
|
|
88XX |
|
Silicon Manganese Steel |
92XX |
|
Nickel Chromium Molybdenum Steel |
93XX |
|
|
94XX |
|
|
97XX |
|
|
98XX |
It is possible that AISI grades are quoted as SAE grades and it is often that AISI/SAE have the same steel identification number. The AISI range of steel specifications also includes stainless steels which are 3 digit numbers starting with either a 2, 3, 4, or 5. The most popular of these being the 300 series austenitic stainless grades, followed by the 400 series martensitic grades. Also stocked are AISI equivalent grades of steel/" target="_blank" class="keylink">tool steel and high speed steel. AISI steel/" target="_blank" class="keylink">tool steel and high speed steel specifications are usually designated with a letter followed by 1 or 2 digits.
Mechanical properties
Heat treatment
Machining
Welding performance
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