DTD 551
2017-07-17 10:30:45 Origin： Remark：0 Click：
3.0%Cr - 1.0%Mo Nitriding steel DTD 551 Round bar, flat bar, plate Steelmaking, ESR melted, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test, Cold working,
MATERIAL TECHNICAL DATASHEET - Grade BS 551
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TYPE OF STEEL: Cr - Mo Nitriding steel
CHEMICAL COMPOSITION (mass weight %)
Carbon, C (％): 0.30 ~ 0.50
Silicon, Si (％): 0.10 ~ 0.40
Manganese, Mn (％): 0.40 ~ 0.80
Phosphorus, P (％)≤: 0.025
Sulfur, S (％)≤: 0.015
Chromium, Cr (％): 2.50 ~ 3.50
Silicon, Si (％): 0.10 ~ 0.40
Manganese, Mn (％): 0.40 ~ 0.80
Phosphorus, P (％)≤: 0.025
Sulfur, S (％)≤: 0.015
Chromium, Cr (％): 2.50 ~ 3.50
Nickel, Ni (%): ≥ 0.40
Molybdenum, Mo (％): 0.70 ~ 1.20
Molybdenum, Mo (％): 0.70 ~ 1.20
Vanadium, V (%): 0.10 ~ 0.30
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Tensile strength σb≥/MPa: 1320
Yield strength σs≥/MPa: 1080
Elongation δ5≥(%): 8.0
Yield strength σs≥/MPa: 1080
Elongation δ5≥(%): 8.0
Impact strength, AKV≥/J: 25
Annealed hardness HBS: 269 max.
Annealed hardness HBS: 269 max.
PRODUCT PROFILE
Round bar (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Round bar (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Steel strip via cold rolled: T0.1 - 3mm X W5 - 200mm X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
Forging piece: stepped shafts, other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers, Email: sales@ccsteels.com
If you meet further on any technical enquiry, pleased to EMAIL our resident team of qualified production engineers, Email: sales@ccsteels.com
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