STF8
2017-08-03 10:16:48 Origin： Remark：0 Click：
Material technical specifications of KS D3753 -2004 alloy tool steel STF8 data sheet, STF8 Chemical compositions, STF8 Mechanical properties from Steelmaking, ESR melted, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test, Cold working, Peeled or rough turned machining. Technical specification - KS D3753 -2004. 100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
TECHNICAL DATA SHEET: KS STF8
MATERIAL CATEGORY: alloy tool steel
MATERIAL SPECIFICATIONS: KS D3753 - 2004
CHEMICAL COMPOSITIONS (WEIGHT - %)
C (％): 0.35 ~ 0.45
Si (％): ≤ 0.50
Mn (％): ≤ 0.60
P (％)≤: 0.030
S (％)≤: 0.025
Cr (%): 4.00 ~ 4.70
Mo (%): 0.30 ~ 0.50
W (%): 3.80 ~ 4.50
V (%): 1.70 ~ 2.20
Co (%): 3.80 ~ 4.50
MECHANICAL PROPERTY AND HARDNESS
Annealing temperature /℃: 820 ~ 870
Annealed hardness, ≤ HB: 241
Quenching temperature /℃: 1070 ~ 1170
Cooling medium: Oil
Tempering temperature /℃: 600 ~ 700
Hardness under tempered condition ≥HRC: 55
Tempering temperature /℃: 600 ~ 700
Hardness under tempered condition ≥HRC: 55
MELTING PROCESS
This alloy is generally smelt in Electric Arc Furnace (EAF), EAF+LF+VD, LF + Electroslag remelting (ESR).
For a purpose of superior quality, it should be smelt via technology of vacuum refining or by agreement.
PRODUCT PROFILE AND AVAILABLE FORMS
Round bar (Diameter): 0.50 to 600mm
Square bar / Flat bar: T3 to 500mm X W3 ~ 1200mm
This alloy is generally smelt in Electric Arc Furnace (EAF), EAF+LF+VD, LF + Electroslag remelting (ESR).
For a purpose of superior quality, it should be smelt via technology of vacuum refining or by agreement.
PRODUCT PROFILE AND AVAILABLE FORMS
Round bar (Diameter): 0.50 to 600mm
Square bar / Flat bar: T3 to 500mm X W3 ~ 1200mm
Steel strip: THK0.5 ~ 2.50 X W8.0 ~ 185mm
Length: Fixed length or random length or based on the customer's special requirement.
Length: Fixed length or random length or based on the customer's special requirement.
Other different shapes based on OEM.
REMARKABLE ITEMS FOR OVERSEAS MARKETS
German series: 1.2083, 1.4021, 1.4028, 1.2344, 1.2343, 1.2379, 1.2312, 1.2738, 1.2767, 1.2360, 1.2581
1.2316, 1.2085, 1.2510, 1.2367, 17CrNiMo6, 34CrNi3Mo, 36CrNiMo8, 718, 718V, WB36 and so on.
American series: 420, 410, H13, H13ESR, D2, P20+Ni, P20+S, O1, O2, H10, H11, 4145H, 4340, P91, P92 and so on.
Japan-Korea series: SUS420J2, SKD11, SKD61, SKD6, DC53, SKS3, SKS31, SKT4, NAK80, HMD, KP4, KP4M
American series: 420, 410, H13, H13ESR, D2, P20+Ni, P20+S, O1, O2, H10, H11, 4145H, 4340, P91, P92 and so on.
Japan-Korea series: SUS420J2, SKD11, SKD61, SKD6, DC53, SKS3, SKS31, SKT4, NAK80, HMD, KP4, KP4M
TECHNICAL SALES ASSISTANCE & SERVICE
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