Ramanuj Metal Industry

Pipes And Tubes

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We follow a strict quality control system for our products and supply all our products with test certificates, and perfect after-sales service system are always our top concern which can guarantee and track the quality of our products from raw materials procurement, production processes, finish products as well as after-sales service. We mainly sell stainless steel sheet, stainless steel pipes, pipe fittings, coils, bands, section bars and so on which are applied in decoration, medical industry, food industry, construction industry etc, and have gained good feedback and establish mutual trust with our clients.

STAINLESS STEEL

304/304L Stainless Steel Pipe belongs to the same 300 series stainless steel pipe, 304/304L stainless steel pipe is the most widely used a chromium-nickel stainless steel, as a widely used steel, has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; stamping, bending and other hot workability, no heat treatment hardening phenomenon (use temperature -196 ℃ ~ 800 ℃).The main difference between 304 and 304L is that 304L stainless steel pipe contains much less carbon than 304 and is more resistant to corrosion. 304L is better than 304 in terms of resistance to pitting at welded points or other treatments.

Specification

ASTM A 312

A 213

A 249

A 269

A 358

A 268

A 276

Grade

202

304

304L

304

304H

316

316L

316Ti

321

321H

317

317L

310

310S

409

410

420

430 etc.

CARBON STEEL

Carbon steel pipe is the most common use piping material in different industries served for construction, structural, liquid transmissions for water, oil and gas. Typical carbon steel pipe material grades in API 5L Grade B, X42 to X70, ASTM A106 B, ASTM A53 B, ASTM A252 Grade 3 and ASTM A333 Grade 6 etc.

Specification & Grade

ASTM A 106

A 53

API A 5L

Gr A, B, C

ASTM A 333

Gr 1 to 6

IBR & NON IBR

ALLOY STEEL

An Alloy Steel Pipe is used in applications which require moderate corrosion resistance properties with good durability and at an economical cost. To simply put it, alloy pipes are preferred in those areas where carbon steel pipes may fail. There are two classes of alloy steels - high alloys and low alloy steels. Pipes that constitute low alloy steels have an alloying content that ranges below 5%. Whereas the alloying content of a high alloy steel would range between 5% to about 50%.

Specification & Grade

ASTM A 335

GR P1

P11

P22

P91

NICKEL ALLOYS

Nickel alloy pipes and tubes come in a range of specifications, with varying thickness and dimensions. Pipe sizes range from 1/8”NB (Nominal Bore Diameter, ie the inner diameter of the pipe) to 30”NB. They can be manufactured seamless, welded, fabricated, Electric Resistance Welded (ERW) or LSAW, depending on need, and can take the form of Round, Rectangular, Hydraulic or Square.