51Si7
2015-11-10 16:52:06 Origin： Remark：0 Click：
Technical specification of French standard Spring steel 51Si7 datasheet,51Si7 Chemical compositions, mechanical property from Steelmaking, ESR melted, Blooming, 51Si7 Forging, Hot rolling, 51Si7 Heat treatment, Straightening, Ultrasonic test, Cold working or Machined. Technical specification - NF A36-571.We also possess the advanced precision machining equipments for further processing. Please just let us know what you inquire.
Official Test Certificate: issued by TUV - SGS - BV
TECHNICAL SPECIFICATION / DATASHEET - NF 51Si7
MATERIAL TYPE: Spring steel
MATERIAL STANDARDS: NF A36-571
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.48~0.54
Si (％): 1.50~2.00
Mn (％): 0.50~0.80
P (％)≤: 0.025
S (％)≤: 0.025
P (％)≤: 0.025
S (％)≤: 0.025
Cr (%): -
Mo (%): -
Other(％): -
MECHANICAL PROPERTY
Tensile strength σb≥/MPa: 1350~1600
Yield strength σs≥/MPa: 1150
Yield strength σs≥/MPa: 1150
Elongation δ5 ≥(%): 6
Reduction of area ψ(％) ≥: -
PRODUCT DESCRIPTION
PRODUCT DESCRIPTION
Alloy structural steel is provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0.85 generally ) enough plasticity and toughness.
The concentration of alloy element of this kind of steel is quite high, mainly are corrosion resistant steel, heat resistant steel, wear resistant steel, and other special steels of physical and chemical properties. Alloy structural steel has preferable mechanical property than that of carbon structural steel, high performance of heat treatment especially.
The alloy is usually produced by EAF + VD /LF + IFF + VD followed by electroslag refining (ESR) if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the annealed condition, or bright annealing specially.
Final heat treatment - heat treatment / QT
Forged - ring, discs, shaft
TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Power generation – turbine fasteners – boiler support rods
Process plant – fasteners
Process plant – fasteners
Mechanical gears, gear shaft, main axis, valve rods
Mechanical parts - connecting rod, bolt and nut
Multidiameter shafts
PRODUCT PROFILE
Round bar / Wire rod (Diameter): 0.50mm 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 / Wire rod (Diameter): 0.50mm to 800mm
Square bar / Flat bar: 3mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T6 - 200mm X W1000- 2500mm X L1000-12000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /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 engineer.
- Email: lh.steel@hotmail.com
Hot search：51Si7
Total list
Monthly rank
- 3438NCD4
- 3424CrMo5
- 3119CrNi5
- 2938B3
- 28ASTM A739 type B11
- 2826NiCrMoV11-5
- 2742Cr4Mo2
- 24S135
- 24EN 38
- 22EN20B