SNB23-1
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Technical specifications of JIS alloy steel bolting materials for high temperature service SNB23-1 data sheet,SNB23-1 Chemical compositions,SNB23-1 Mechanical property from Steelmaking, ESR melted, Blooming, Hot forging,Hot rolling, Heat treatment, Straightening, 100% Ultrasonic test, Cold working, Peeled or rough turned machining. Technical specification JIS G4108-2007. We also possess the advanced precision machining equipments for catering for your different special requirements.
MATERIAL TECHNICAL DATA SHEET - JIS SNB23-1
MATERIAL CATEGORY: Alloy steel bolting materials for high temperature service
MATERIAL SPECIFICATIONS: JIS G4108 -2007
MATERIAL SPECIFICATIONS: JIS G4108 -2007
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.37 ~ 0.44
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.37 ~ 0.44
Si (%): 0.20 ~ 0.35
Mn (％): 0.60 ~ 0.95
Mn (％): 0.60 ~ 0.95
P (％) ≤: 0.025
S (％) ≤: 0.025
Cr (%): 0.65 ~ 0.95
Ni (%): 1.55 ~ 2.00
Mo (%): 0.20 ~ 0.30
MECHANICAL PROPERTY
Diam.: 75mm Max.
σb/≥ MPa: 1140
σ0.2/≥ MPa: 1030
δ ≥(％): 10
ф ≥ (％): 35
Hardness | HBW ≤: 321 ~ 415
σ0.2/≥ MPa: 1030
δ ≥(％): 10
ф ≥ (％): 35
Hardness | HBW ≤: 321 ~ 415
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
Round bar (Diameter): 0.30mm to 650mm
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
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
Round bar (Diameter): 0.30mm to 650mm
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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