SS 310/310S PIPES AND TUBES, Supplier of SS 310/310S PIPES AND TUBES India

Lanco Pipes & Fittings Co. is one of the leading exporter and supplier of Steel. Alloy Steels are basically carbon steels with certain chemical elements added to improve the properties of the metal for specific applications or end products. Alloying elements include carbon, copper, sulfur, manganese, phosphorus, and chromium, and the resulting material is called an alloy steel. All Metals & Forge provides alloy steel in all mill forms including sheet, strip, plate, foil, round bar, square bar, flat bar, hex bar, tube, pipe and wire.

Alloys of identical mechanical and chemical properties are available from other excellent and offer manufacturers alternatives to the various Hastelloy® brand alloys.

Stainless Steel

Stainless steel is a corrosion resistant steel alloy with a minimum of 10% chromium. There are different grades and surface finishes of stainless steel produced to accommodate the environment in which the material will be implemented. Unlike carbon steel, stainless steel does not rust when exposed to air and moisture due to the sufficient amount of chromium present. The chromium creates an invisible passive film of chromium oxide that will not let oxygen attack the surface and prevents rusting of the iron base.

Also, when the surface is scratched this layer quickly reforms. This phenomenon is called passivation by materials scientists, and is seen in other metals, such as aluminium. When stainless steel parts such as nuts and bolts are forced together, the oxide layer can be scraped off causing the parts to weld together.

Stainless steel, also known as inox steel is defined as a steel alloy with a minimum of 10.5 or 11% chromium content by mass. Stainless steel does not stain, corrode, or rust as easily as ordinary steel .] It is also called corrosion-resistant steel or CRES when the alloy type and grade are not detailed, particularly in the aviation industry.

Benefits of Stainless Steel :

Corrosion Resistance Hygiene Strength-To-Weight Advantage Lower Total Life Cycle Cost

Fire And Heat Resistance Aesthetic Appearance Impact Resistance 100%Recyclable

Specification

SS Round Bars as per ASTM A 484

SS Forged Bars as per ASTM A 182

SS pipe as per ASTM A 312 /249/270/269/213/358

SS plate as per ASTM A 240

Grades – Chemical Composition and Equivalent Standards :

AISI ASTM	EN DIN	C % Max	Mn % Max	Si % Max	S % Max	P % Max	Cr % Max	Ni % Max	Mo % Max	Others %
304	1.4301	0.08	2.00	1.00	0.030	0.045	18.00-20.00	8.00-11.00	-	-
310	1.4841	0.25	2.00	1.50	0.030	0.045	24.00-26.00	19.00-22.00	-	-
316	1.4401	0.08	2.00	1.00	0.030	0.045	16.00-18.00	10.00-14.00	2.00-3.00	-
321	1.4541	0.08	2.00	1.00	0.030	0.045	17.00-19.00	9.00-12.00	-	Ti : Min (5xC%)
410	1.4006	0.15	1.00	1.00	0.030	0.040	11.50-13.50	-	-	-
420	1.4021	0.15 Min	1.00	1.00	0.030	0.040	12.00-14.00	-	-	-
430	1.4016	0.12	1.00	1.00	0.030	0.040	16.00-18.00	-	-	-
431	1.4057	0.20	1.00	1.00	0.030	0.040	15.00-17.00	1.25-2.50	-	-

TOP

Duplex & Super Duplex Steel

 

Duplex alloys were originally created to combat corrosion problems caused by chloride-bearing cooling waters and other aggressive chemical process fluids.
Called Duplex because of its mixed microstructure with about equal proportions of ferrite and austenite, duplex stainless steels are a family of grades, which range in corrosion performance depending on their alloy content. The chemical composition based on high contents of Cr and Mo, improves intergranular and pitting corrosion resistance, respectively. Additions of nitrogen can promote structural hardening by interstitial solid solution mechanism, which raises the yield strength and ultimate strength values without impairing toughness. Moreover, the two-phase microstructure guarantees higher resistance to pitting and stress corrosion cracking in comparison with conventional stainless steels.

The various Alloys

The development of the Duplex stainless steels has continued, graded for their corrosion performance depending on their alloy content. Today, modern duplex stainless steel can be divided into four groups:

Composition of Duplex Stainless Steels :

The table lists the duplex stainless steels covered in ASTM specifications for plate, sheet, and bar products.

UNS Number Duplex Grades	Typeb	C	Mn	P	S	Si	Cr	Ni	Mo	N	Cu
S31200	-	0.030	2.00	0.045	0.030	1.00	24.0-26.0	5.5-6.5	1.20-2.00	0.14-0.20	-
S31260	-	0.03	1.00	0.030	0.030	0.75	24.0-26.0	5.5-7.5	2.5-3.5	0.10-0.20	0.20-0.80
S31803	-	0.030	2.00	0.030	0.020	1.00	21.0-23.0	4.5-6.5	2.5-3.5	0.08-0.20	-
S32001	-	0.030	4.0-6.0	0.040	0.030	1.00	22.0-23.0	1.00-3.00	0.60	0.05-0.17	1.00
S32205	2205	0.030	2.00	0.030	0.020	1.00	19.5-21.5	4.5-6.5	-	0.14-0.20	-
S32304	2304	0.030	2.50	2.50	0.030	1.00	21.5-24.5	3.0-5.5	0.05-0.60	0.05-0.20	0.05-0.60
S32520	-	0.030	1.50	0.035	0.035	0.80	24.0-26.0	5.5-8.0	3.0-4.0	0.20-0.35	0.50-2.00
S32550	255	0.04	1.50	0.040	0.030	1.00	24.0-27.0	4.5-6.5	2.9-3.9	0.10-0.25	1.5-2.5
S32750	2507	0.030	1.20	0.035	0.020	0.80	24.0-26.0	6.0-8.0	3.0-5.0	0.24-0.32	0.50
S32760	-	0.030	1.00	0.030	0.010	1.00	24.0-26.0	6.0-8.0	3.0-4.0	0.20-0.30	0.50-1.00
S32900	329 d	0.06	1.00	0.040	0.030	0.75	23.0-28.0	2.5-5.0	2.0		-
S32950	-	0.03	2.00	0.035	-		-		-		-

BENEFITS

TOP

Abrasion Resistant Steel Plates

 

Abrasion resistant steel plate such as AR400 and AR440 alloy is suitable for applications where resistance to wear is a critical demand. Examples of such applications may include resistance to hard particles grinding under a surface sliding over the top of the steel plate surface, or resistance to impact from rocks and other hard and heavy materials, or resistance to high velocity abrasive dust and other particles.

Wear resistant steel is used in areas where there is likely to be a high degree of abrasion or wear of the steel plate. Typical applications are in truck beds, attachments to diggers and earth movers and in processing applications in the mining industry.

ABRASION RESISTAN 200/400/450/500 wear-resistant steel. has a hardness of approximately 200/400/450/500 HB. It combines high wear resistance with toughness and good weldability. Brand name supplied by us are of TISCRAL / SAILHARD/ JISCRAL/ LAS07 / HARDOX / DILLIDUR / DUROSTAT / ABRASO / XAR AND Other well know brands.

Specifications