STR 31
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STR 31 Steel Ex-stock, Specifications STR 31 Suppliers & Manufacturers, STR 31 Forging Bar Plate machined, Alloy STR 31 Exporters Technical specifications - KS D3731 - 2002 / 2007. From Melting, ESR & VAR technique, Blooming, Hot forging, Hot rolling, Heat treatment, Straightening, Ultrasonic flaw detection test.
TECHNICAL DATA SHEET - KS D3731 Grade STR 31
TECHNICAL SPECIFICATIONS: KS D3731 - 2002/2007
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
MATERIAL CATEGORY: Heat resistant stainless steel bar and plate
CHEMICAL COMPOSITION (WEIGHT %)
C (％): 0.35 ~ 0.45
Si (％): 1.50 ~ 2.50
Mn (％): ≤ 0.60
P (％) ≤: 0.040
S (％) ≤: 0.030
Cr (％): 14.0 ~ 16.0
Ni (％): 13.0 ~ 15.0
Mo (%): -
W (%): 2.00 ~ 3.00
N (%): -
MECHANICAL PROPERTY UNDER ROOM TEMP.
Condition: Solution treated, 950 ~ 1050 Deg.C
Tensile strength, σb/ ≥ MPa: 686
Yield strength, σ0.2/ ≥ MPa: 314
Elongation, δ (％) ≥: 25.0
Reduction of area, ф (％) ≥: 35.0
Hardness ≤ (HBW): 248 Max.
N (%): -
MECHANICAL PROPERTY UNDER ROOM TEMP.
Condition: Solution treated, 950 ~ 1050 Deg.C
Tensile strength, σb/ ≥ MPa: 686
Yield strength, σ0.2/ ≥ MPa: 314
Elongation, δ (％) ≥: 25.0
Reduction of area, ф (％) ≥: 35.0
Hardness ≤ (HBW): 248 Max.
MELTING PROCESS
The alloy is usually produced by BEF + AOD / EAF, followed by electroslag refining (ESR or VAR ) if necessary for special purpose.
PRODUCT FORMS AVAILABLE
Round bar (Diameter): 5.50 ~ 600mm
Wire rod (Diameter): 0.15 ~ 15mm
Flat bar (width X thickness): 10 ~ 400 X 15 ~ 1000mm
Length: random length, fixed length or based on the customer's special requirement.
Form: wire or straightened bar
The alloy is usually produced by BEF + AOD / EAF, followed by electroslag refining (ESR or VAR ) if necessary for special purpose.
PRODUCT FORMS AVAILABLE
Round bar (Diameter): 5.50 ~ 600mm
Wire rod (Diameter): 0.15 ~ 15mm
Flat bar (width X thickness): 10 ~ 400 X 15 ~ 1000mm
Length: random length, fixed length or based on the customer's special requirement.
Form: wire or straightened bar
TECHNICAL SALES ASSISTANCE
If you meet further on any technical inquiry. pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.
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