STR 31 datasheet,STR 31 chemical,STR 31 heat treatment

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.
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

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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