SNB21-2 Stockist, SNB21-2 Equivalent Steel

SNB21-2
2024-06-04 14:01:44   Origin:   Remark:0 Click:

JIS G4108 Technical specifications of Bolting material for high temperature service SNB21-2 Round bar, Flat bar, Stock available, Heat treatment

MATERIAL DATA SHEET - JIS SNB21-2

MATERIAL CATEGORY: Alloy steel bolting materials for high temperature service  

MATERIAL SPECIFICATIONS: JIS G4108 -2007

STOCK AVAILABLE - Round bar Diam. 20 ~ 200mm

CHEMICAL 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.: 100mm Max.
Tensile strength, Rm ≥ MPa: 1070
Yield strength, Rp0.2 ≥ MPa: 960
Elongation, A5≥ (%): 11.0
Reduction of area, Z ≥ (%): 40
Hardness | HBW ≤: 311 ~ 401

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 350mm
Square bar / Flat bar (Width X Thickness): 10mm to 1000mm
Length: random length, fixed length or based on the customer's special requirement.
Steel sheet / plate: T0.50 ~ 50mm X W10 ~ 2000mm X random length or in coil form.

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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