S144
2015-06-04 10:07:28 Origin： Remark：0 Click：
BS S144 is generally supplied with special melting process ESR/VAR Aerospace quality, S144 offers high tensile and hardness. S144 Round bar, flat bar, and forgings. Ultrasonic testing.
TECHNICAL SPECIFICATION - Grade BS S144
MATERIAL CATEGORY - Aerospace "S" Series alloy steel
MATERIAL SPECIFICATIONS: BS EN 3890-2002, BS EN 2344-2001, BS EN 3146-2001
MELTING PROCESS - Consumable electrode remelted
HS code for Customs: 72201100 / 72202030 / 72221100
CHEMICAL COMPOSITIONS (mass weight - %)
Carbon, C (％): ≤ 0.07
Silicon, Si (％): ≤ 0.60
Manganese, Mn (％): ≤ 1.00
Phosphorus, P (％)≤: 0.025
Sulfur, S (％)≤: 0.020
Chromium, Cr (％): 13.2 ~ 14.7
Nickel, Ni (％): 5.00 ~ 5.80
Molybdenu, Mo (％): 1.20 ~ 2.00
Niobium, Nb (%): 0.10 ~ 0.40
Copper, Cu (％): 1.20 ~ 2.00
HEAT TREATMENT AND MECHANICAL PROPERTIES
Heat treatment temperature and cooling: Final Heat treatment
Tensile strength, σb≥/MPa: 1130 ~ 1330
Yield strength, σ0.2≥/MPa: 1030
Elongation, δ5 (%)≥: 12.0
Immpact, AKv ≥: 40J
Hardness ≤HBW: 352 ~ 401
PRODUCT DESCRIPTION
The alloy is usually produced by AOD / EAF 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 + aged.
ADVANTAGE & SUPERIOR SERVICE
20+ years Focus On Special Steel Manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.
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Marking by stamping or printing.
Third party inspection service.
Export packing / Export documents.
Transport by Track, Sea, Courier (FedEx, UPS, DHL) and Air Cargo.
We closely cooperate with the professional inspection partners to strictly control the quality and improve the quality manage system, and guarantee the goods delivery each time. It is proved that we are worth of trusting and will be the strategic partner of the supplying chains in the special steels field.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to EMAIL our resident team of qualified production engineers, Email:sales@ccsteels.com
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