SNB5
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JIS G4108 Technical specifications of Bolting Steel SNB5 Round bar, Flat bar, Plate Stock Available, Steelmaking, ESR melted, Heat treatment
TECHNICAL DATA SHEET - JIS SNB5
MATERIAL CATEGORY: Alloy steel bolting materials for high temperature service
MATERIAL SPECIFICATIONS: JIS G4107 -2007
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
CHEMICAL COMPOSITION (WEIGHT %)
Carbon, C (％): ≥ 0.10
Silicon, Si (%): ≤ 1.00
Manganese, Mn (％): ≤ 1.00
Phosphorus, P (％) ≤: 0.040
Sulfur, S (％) ≤: 0.030
Chromium, Cr (%): 4.00 ~ 6.00
Nickel, Ni (%): -
Molybdenum, Mo (%): 0.40 ~ 0.65
Silicon, Si (%): ≤ 1.00
Manganese, Mn (％): ≤ 1.00
Phosphorus, P (％) ≤: 0.040
Sulfur, S (％) ≤: 0.030
Chromium, Cr (%): 4.00 ~ 6.00
Nickel, Ni (%): -
Molybdenum, Mo (%): 0.40 ~ 0.65
TYPICAL MECHANICAL PROPERTY
Diam.: 100mm Max.
Tensile strength, σb ≥ MPa: 690
Yield strength, Rp0.2 ≥ MPa: 550
Elongation, A5 ≥ (％): 16
Reduction of area, Z ≥ (％): 50
Hardness | HBW ≤: -
MELTING PROCESS AND FEATURES
The steels shall be manufactured by melting process EF + ESR, EAF+ LF + VD, EAF+ LF + VD + ESR, IFF + ESR Melted or by agreement.
Spring steel should possess excellent combination property, such as mechanical property (limit of elasticity, ultimate strength, yield ratio), relaxation resistant, fatigue property, hardenability, physical and chemical property (heat resistance,low temperature resistant, antioxidation, corrosion resistance). To meet the above performance requirement, Spring steel has fine metallurgical quality ( high purity, homogeneity), excellent surface quality ( specially on surface defect and decarbur-ization), precise external form and dimensions.
PRODUCT PROFILE & DIMENSIONS
Round bar (Diameter): 5.50mm to 300mm
Square bar / Flat bar (Width X Thickness): 10mm to 1000mm
Length: random length, fixed length or based on the customer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 2000mm X Coil
Steel sheet / plate: T0.50 ~ 50mm X W10 ~ 2000mm X random length or in coil form.
TECHNICAL SALES ASSISTANCE & SERVICE
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If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers.
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