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We supply and stock seamless and welded pipes from 1/8” upto 80” in all grade. Our delivery and stock program covers high specification standards, and includes following grades.
Manhattan Trading LTD / L.L.C

American Society for Testing:

ASTM A53 :

Standard Spec. for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless . 1. Scope: 1.1 This specification covers seamless and welded black and hot-dipped galvanized steel pipe in NPS 1/8 to NPS 26 [DN 6 to DN 650] (Note 1), inclusive, with nominal wall thickness (Note 2) as given in Table X2.2 and Table X2.3. It shall be permissible to furnish pipe having other dimensions provided that such pipe complies with all other requirements of this specification. Supplementary requirements of an optional nature are provided and shall apply only when specified by the purchaser. Note 1 . The dimensionless designators NPS (nominal pipe size) [DN (diameter nominal)] have been substituted in this specification for such traditional terms as "nominal diameter," "size," and "nominal size." Note 2. The term nominal wall thickness has been assigned for the purpose of convenient designation, existing in name only, and is used to distinguish it from the actual wall thickness, which may vary over or under the nominal wall thickness.

2. Referenced Documents:

A90/A90M Test Method for Weight [Mass] of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy CoatingsA370 Test Methods and Definitions for Mechanical Testing of Steel ProductsA530/A530M Specification for General Requirements for Specialized Carbon and Alloy Steel PipeA700 Practices for Packaging, Marking, and Loading Methods for Steel Products for ShipmentA751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel ProductsA865 Specification for Threaded Couplings, Steel, Black or Zinc-Coated (Galvanized) Welded or Seamless, for Use in Steel Pipe JointsB6 Specification for ZincE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE213 Practice for Ultrasonic Testing of Metal Pipe and TubingE273 Practice for Ultrasonic Examination of the Weld Zone of Welded Pipe and TubingE309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic SaturationE570 Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular ProductsE1806 Practice for Sampling Steel and Iron for Determination of Chemical

ASTM A106 :

Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service 1. Scope ; 1. 1 This specification covers seamless carbon steel pipe for high-temperature service (Note 1) in NPS 1/8 to NPS 48 [DN 6 to DN 1200] (Note 2) inclusive, with nominal (average) wall thickness as given in ASME B36.10. It shall be permissible to furnish pipe having other dimensions provided such pipe complies with all other requirements of this specification. Pipe ordered under this specification shall be suitable for bending, flanging, and similar forming operations, and for welding. When the steel is to be welded, it is presupposed that a welding procedure suitable to the grade of steel and intended use or service will be utilized. Note 1: It is suggested, consideration be given to possible graphitization. Note 2 : The dimensionless designator NPS (nominal pipe size) [DN (diameter nominal)] has been substituted in this standard for such traditional terms as "nominal diameter", "size", and "nominal size".1.2 Supplementary requirements of an optional nature are provided for seamless pipe intended for use in applications where a superior grade of pipe is required. These supplementary requirements call for additional tests to be made and when desired shall be so stated in the order.1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents. Therefore, each system is to be used independently of the other.1.4 The following precautionary caveat pertains only to the test method portion, Sections 11, 12, and 13 of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Carbon Steel :

A53 grade A + grade B P235 A106 grade B + grade C P265 Wst. 1.4301 A333 grade 3 + grade 6 P265NLWst. 1.4401 API 5L grade B / X42 /X52 /X60 / X65 /X70 P355 - P460 Wst. 1.4541

Carbon steel is more commonly used :

Than any other metal, and has long been admired for its versatility and low cost. Federal Steel stocks a complete selection of carbon steel pipe and steel tubing in an extraordinary range of grades and specifications. Seamless steel pipe and tubing is stocked in outer diameters (OD’s) through 36”, ERW (Electric Resistance Welded) pipe, including rolled and welded pipe and spiral weld pipe, is stocked in OD’s through 60”. As a specialist in schedule and non-schedule heavy wall pipe and tubing, Federal Steel inventories multiple specifications, including API 5L (X- grades), ASTM (A106 , A53 , A519, A513 Type 5 DOM), and ASME specifications.

Alloy Steel:

A335 grade P1 16 Mo3 A335 grade P5 13CrMo45 A335 grade P9 10CrMo9-10 A335 grade P11/P12 X10CrMoVNb9-1 A335 grade P22 A335 grade P91

The benefits of alloy steel pipe:

The benefits of alloy steel pipe include its tensile strength, yield strength, fatigue resistance, toughness, and wear resistance. As suppliers of seamless and welded alloy steel pipe, Federal Steel specializes in 'chrome moly' SA335 piping in grades P5, P9, P11, P22, and P91. Chrome moly power piping is used extensively in power plants throughout the world. In addition to SA335, other specifications we offer include A519 and rolled and welded pipe in A-691. Alloy piping products are available in outer diameters through 60” (OD) and up to 4” wall thickness. -

Stainless Steel:

A312 / A358 TP304 (L/H) UNS S 30400 WSt. 1.4301 A312 / A358 TP316 (L/H/Ti) UNS S 31600 WSt. 1.4401 A312 / A358 TP321 (H) UNS S 32100 WSt. 1.4541 A312 / A358 TP347 (H) UNS S 34700 WSt. 1.4550 A790 6 Mo UNS S 31254 WSt. 1.4529 A790 Duplex UNS 31803 WSt. 1.4462 A790 Super Duplex UNS S 32750 WSt. 1.4501 A790 Super Duplex UNS S 32760 WSt. 1.4501

To answer the question “Why Stainless Steel?

these and other beneficial properties of the Mo containing stainless

steels are summarized as follows:

Excellent corrosion resistance - SS are significantly more resistant to oxidation by water and biocides than carbon steel and cast or ductile iron. This results in longer life time for pipelines. Corrosion protection an internal and external coating is not required for SS, nor is cathodic protection. This reduces system cost and makes stainless steels more compatible with environment. Hygienic materials - due to their very high passive film stability, SS are basically inert in waters. Leaching of alloying elements (Cr and Ni) is within safe limits. As a result, they provide a better quality of drinking water.

Pipes :