SNB21-4
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JIS G4108 Material Specifications Bolting Materials for high temperature service SNB21-4 Round bar, Flat bar, SNB21-4 Stock available
MATERIAL TECHNICAL DATA SHEET - JIS SNB21-4
MATERIAL CATEGORY: Alloy steel bolting materials for high temperature service
MATERIAL SPECIFICATIONS: JIS G4108 -2007
STOCK AVAILABLE - Round bar Diam. 18 ~ 220mm
HEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.36 ~ 0.44
Silicon, Si (%): 0.20 ~ 0.35
Manganese, Mn (％): 0.45 ~ 0.70
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.025
Chromium, Cr (%): 0.80 ~ 1.15
Nickel, Ni (%): -
Molybdenum, Mo (%): 0.50 ~ 0.65
Vanadium, V (%): 0.25 ~ 0.35
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Diameter.: 75mm Max.
Tensile strength, Rm ≥ MPa: 930
Yield strength, Rp0.2 ≥ MPa: 825
Elongation, A5≥ (％): 13.0
Reduction of area, Z ≥ (％): 45.0
Hardness | HBW ≤: 269 ~ 331
Diameter.: 75 ~ 150mm Max.
Tensile strength, Rm ≥ MPa: 930
Yield strength, Rp0.2 ≥ MPa: 825
Elongation, A5≥ (％): 13.0
Reduction of area, Z ≥ (％): 45.0
Hardness | HBW ≤: 277 ~ 352
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.
PRODUCT PROFILE & DIMENSIONS
Round bar & Disc (diameter): 5.50mm to 350mm
Square bar / Flat bar (Width X Thickness): 10mm to 600mm
Length: random length, fixed length or based on the customer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 300mm X Coil
Steel sheet / plate: T0.50 ~ 50mm X W10 ~ 1200mm X Lmm.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry. pleased to EMAIL (sales@ccsteels.com.) our resident team of qualified production engineers.
Tensile strength, Rm ≥ MPa: 930
Yield strength, Rp0.2 ≥ MPa: 825
Elongation, A5≥ (％): 13.0
Reduction of area, Z ≥ (％): 45.0
Hardness | HBW ≤: 277 ~ 352
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.
PRODUCT PROFILE & DIMENSIONS
Round bar & Disc (diameter): 5.50mm to 350mm
Square bar / Flat bar (Width X Thickness): 10mm to 600mm
Length: random length, fixed length or based on the customer's special requirement.
Steel strip: T0.20 ~ 3mm X W10 ~ 300mm X Coil
Steel sheet / plate: T0.50 ~ 50mm X W10 ~ 1200mm X Lmm.
TECHNICAL SALES ASSISTANCE & SERVICE
If you meet further on any technical enquiry. pleased to EMAIL (sales@ccsteels.com.) our resident team of qualified production engineers.
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