254SMo Stainless Steel Seamless Pipe Cold Rolled with Bright Surface Hollow Bar

証明	ISO, AISI, ASTM
最小注文数量	50 kg
価格	US $2.55-9.85 / kg

商品の詳細

モデル番号	1.4547/S31254 254SMO	形	ラウンド
技術	冷間圧延	表面処理	明るい
外径	6-630mm	鉄の含有量	55.69%
クロムの内容	20%	ニッケル含有量	18%
モリブデン含有量	60.1%	窒素含有量	0.20%
炭素含有量	0.010%	抗張力	680MPa
降伏強さ	300 MPa	破断伸び	50%
Brinell硬度	210
ハイライト	254SMo Stainless Steel Pipe , Cold Rolled Seamless Pipe , Bright Surface Hollow Bar

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製品の説明

254SMo Stainless Steel Tubes & Bars

254SMo is an austenitic stainless steel specifically developed for use in halide-containing environments such as seawater. This steel demonstrates superior performance particularly in halide-containing acids while also providing excellent resistance to uniform corrosion. With carbon content below 0.02%, it qualifies as pure austenitic stainless steel, and when carbon content falls below 0.01%, it can be classified as super austenitic stainless steel.

Key Features of 254SMo Stainless Steel

As a super stainless steel, 254SMo represents a high-alloy stainless steel containing elevated levels of nickel, chromium, and molybdenum. The 6% molybdenum content provides exceptional local corrosion resistance, including excellent resistance to pitting corrosion (PI ≥ 40) and stress corrosion in demanding conditions like seawater, aeration, gap environments, and low-speed scouring. This makes it a viable alternative to nickel-based alloys and titanium alloys.

Superior high-temperature and corrosion resistance compared to standard 304 stainless steel
Stable austenitic metallurgical structure for consistent performance
High crevice corrosion resistance in seawater, even at elevated temperatures
Strong corrosion resistance in acidic solutions and oxidizing halide solutions
Enhanced mechanical strength due to high nitrogen content
High ductility, impact strength, and excellent weldability

Technical Specifications

Material Standards

Standard	UNS	Werkstoff Nr.	EN	SS	AFNOR
254 SMO	S31254	1.4529	X1CrNiMoCuN20-18-7	2378*	Z1 CNDU 20.18.06AZ*

Chemical Composition

Element	Content (%)
Iron, Fe	55.69
Chromium, Cr	20
Nickel, Ni	18
Molybdenum, Mo	6.1
Nitrogen, N	0.20
Carbon, C	0.010

Mechanical Properties

Properties	Metric	Imperial
Tensile strength	680 MPa	98600 psi
Yield strength	300 MPa	43500 psi
Modulus of elasticity	195 GPa	28300 ksi
Shear modulus	75 GPa	10900 ksi
Poisson's ratio	0.30	0.30
Elongation at break	50 %	50 %
Hardness, Brinell	210	210

Applications

Ocean: Marine structures in sea environments, seawater desalination, marine aquaculture, seawater heat exchange
Environmental Protection: Flue gas desulfurization for thermal power generation, wastewater treatment
Energy: Atomic power generation, comprehensive coal utilization, ocean wave power generation
Petrochemical Industry: Refining operations, chemical processing equipment
Food Industry: Salt production, soy sauce brewing processes
High Chloride Environments: Paper industry applications, various bleaching devices
Other specialized industrial applications