S131
2020-10-30 08:48:55 Origin： Remark：0 Click：
BS S131 Round bar, Flat bar, Forgings 2S131 ESR ingot, Hot forging, Hot rolling, Heat treatment, Cold working or machined.
TECHNICAL DATA SHEET - S131 & 2S131
MATERIAL CATEGORY - Aerospace "S" Series alloy steel
OFFICIAL TEST CERTIFICATE - issued by TUV - SGS - BV
MATERIAL SPECIFICATIONS - BS S131 -1977
CHEMICAL COMPOSITIONS (mass fraction - %)
Carbon, C (％): 0.55 ~ 0.70
Silicon, Si (％): 0.20 ~ 0.50
Manganese, Mn (％): 3.50 ~ 5.50
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 3.00 ~ 4.00
Niobium, Ni (％): 11.0 ~ 14.0
Molybdenum, Mo (％): ≤ 0.50
Niobium, Nb/Ti (%): -
Others (％): W ≤ 1.00, V ≤ 0.25
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Condition: solution annealed
Tensile strength, Rm ≥ MPa: 700
Yield strength, Rp0.2 ≥ MPa: 30.0
Elongation, A5 ≥ (%): 55.0
Impact strength, AKu ≥ J: 300 min.
Hardness HBS: -
Condition: work hardened
Tensile strength, Rm ≥ MPa: 950
Yield strength, Rp0.2 ≥ MPa: 740
Elongation, A5 ≥ (%): 30.0
Impact, AKv ≥ J: -
Hardness HBS: -
AVAILABLE FORMS & DIMENSIONS
Round bar (diameter): 5.5mm to 550mm
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Other different shapes based on OEM.
PRODUCT DESCRIPTION
The alloy is usually produced by AOD / BEF followed by electroslag refining (ESR) / VAR if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - solution treatment.
TECHNICAL SALES ASSISTANCE
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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