5140/520M40/41Cr4/SCRr440/42C4 High Quality Alloy Steel Plate
40Cr steel plate chemical composition:
|Unified Numeral Code||Grade||C||Si||Mn||Cr|
40Cr steel plate mechanical property:
1) The mechanical properties of steel plates delivered in annealed state shall be in accordance with the provisions of the table below.
2) The steel plates delivered in normalizing state, under the condition of elongation comply with the table, the upper limit of tensile strength is allowed to be increased by 50Mpa.
3) The steel plates with thickness above 20mm, when the thickness is increased by 1mm, the elongation is allowed to lower by 0.25% (absolute value) than that of the table, but it should not exceed 2% (absolute value).
|Unified Numeral Code||Brand No.||Tensile Strength [Mpa]||Elongation [%,min]|
Heat treatment of 40Cr steel:
1) Annealing of 40Cr steel plate:
Slowly heated to 850 ℃ and allow enough times, let the steel to be thoroughly heated, Then cool slowly in the furnace. The 40CR alloy steel will get MAX 250 HB (Brinell hardness).
2) Hardening of 40Cr steel plate:
Heated slowly to 880-920°C, Then after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature.
|Standard||AISI, ASTM, SAE, JIS, DIN, BS, NF|
|Product name||BAOSHAN IRON&STEEL ANSTEEL Hot Rolled 40Cr 5140/520M40/41Cr4（1.7035）/530A40/SCRr440（SCr4）/42C4 Alloy Steel Plate|
|Width||1250mm,1500mm, 1800mm, 2000mm, 2200mm, 2500mm, etc|
|Length||1000mm, 1500mm, 2000mm, 3000mm, 6000mm,8000mm, 10000mm, etc|
|Certificate||ISO, BV, CE etc|
|Package||Standard export seaworthy package, or as customer’s requirement.|
|Trade term||Ex-Work, FOB, CFR, CIF, etc|
|Application||Widely used as boiler plate, container plate, and it is also widely used in building construction.|
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