Welding Connection Alloy Stainless Steel Fittings Tee 310S Tee Round Head Code

Welding Connection Alloy Stainless Steel Fittings Tee 310S Tee Round Head Code

1.Introduction

Grade 310 is a medium carbon austenitic stainless steel, for high temperature applications

such as furnace parts and heat treatment equipment. It is used at temperatures up to 1150°C

in continuous service, and 1035°C in intermittent service. Grade 310S is a low carbon version

of grade 310.

2.Chemical compositions(%)

3.Fabrication

Grades 310/310S are forged in the temperature range 975 ~1175°C. Heavy work is

carried out down to 1050°C and a light finish is applied to the bottom of the range.

After forging annealing is recommended to relieve all stresses from the forging

process. The alloys can be readily cold formed by standard methods and equipment.

4.Application

Grade 310/310S is used in fluidised bed combustors, kilns, radiant tubes, tube hangers for

petroleum refining and steam boilers, coal gasifier internal components, lead pots,

thermowells, refractory anchor bolts, burners and combustion chambers, retorts, muffles,

annealing covers, saggers, food processing equipment, cryogenic structures.

5.Properties

These grades contain 25% chromium and 20% nickel, making them highly resistant to

oxidation and corrosion. Grade 310S is a lower carbon version, less prone to embrittlement

and sensitisation in service. The high chromium and medium nickel content make these steels

capable for applications in reducing sulphur atmospheres containing H2S. They are widely

used in moderately carburising atmospheres, as encountered in petrochemical environments.

For more severe carburising atmospheres other heat resisting alloys should be selected.

Grade 310 is not recommended for frequent liquid quenching as it suffers from thermal shock.

The grade is often used in cryogenic applications, due to its toughness and low magnetic

permeability.

In common with other austenitic stainless steels, these grades cannot be hardened by heat

treatment. They can be hardened by cold work, but this is rarely practiced.

TOBO GROUP sales head offce in Shanghai.

We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicians.

We have five branch factories which can supply the best quality pipes, tubes, fittings flanges and related accessories. Now, it owns a number of advanced pipe production equipments, metal, forging, machining, cold forming, hot extrusion, such as heat treatment process, producing 60, 000 tons of pipe fittings. Company with a variety of detection devices, such as nondestructive testing, chemical analysis, metallographic examination, physical experiments. The technical is very strength, our main products contain fittingsforged socket welding fittings and threaded fittings, pipe weld and the materials of the products contain stainless steel ,duplex-stainless steel alloy steel.

In addition, we are authorized by more than 120 top-class mills from South Korea,Japan and China like JFE,SUMITOMO,POSCO,BAOSTEEL, TISCO,LISCO,.TPCO,HENGYANG VALIN and so on .

Our main products as follows:

• Stainless steel pipe & tube

(seamless pipe / welded pipe / square pipe / rectangular tube,duplex stainless / inconel tube)

• Carbon / alloy steel pipe & tube

(seamless pipe / ERW / SSAW / LSAW / UOE / hollow section pipe / Galvanized Pipe)

• Tubing and casting

(line pipe,water pipeline,gas pipeline,oil pipeline)

• Special steel tube

(copper tube/titanium tube/aluminium tube/nickel alloy )

• steel bar

(round bar/angle steel /flat steel/channel steel/steel wire)

• Pipe Fittings

(eblows, equal / reducing tees, concentric/eccentric reducers, caps, crosses, bends, dish end/end cup, stub ends, unions, couplings / hex couplings, swage nipples , nipples, hex. plug, sockolet, weldolet, thredolet, etc)

• Flange

(DIN flange/ AISI flange/blind flange/welding flange/stainless flange/slip on flange)

• steel sheet / coil

(stainless steel/carbon steel/alloy steel/galvanized steel/aluminium )

• Valve

(ball valve/gate valve/butterfly valve/globe valve/swing check valve/ check valve)

In order to comply with the global modernization services development trends and eliminating the varieties distress of the global enterprise‘s purchase in the consumables.. We coordinate the pressure pipe manufacturer which with the scale of production,quality control and high cost performance (has passed ISO 9001 quality series attestation, ccs, DNV,PED/97/23/EC,AD2000-WO,special equipment manufacturing license,ASME-SA182.through a variety of effective assort mechanism to make up the shortage of supply and Post-processing of VAT enterprise, and to supply high quality pipe fittings, because of the superior quality and good service, we have established long term business cooperation with more than 60 countries and areas,which covers Europe, Africa, South America, North America, Middle East, Taiwan and South East Asia and so on.

With many years effort and support from our valuable customers, these products have obtained a big market share in the world.

Our business principle is "Superior quality, Competitive price, Timely delivery and Considerate service " Standing to the principle of “Enterprises focus on the core business”, TOBO will actively promotes the globalization of business strategy approach, using advanced supply chain management technology to service for clients with higher quality and more competitiveness ‘ s products. At the same time, we sincerely reply your inquiry, honesty waiting for your visiting and wish to have cooperation with you at the any time. We welcome all the customers to contact us for more information. We assure you, with our technical knowledge and experience, our company will be one of your Stable, Continuate business parters in China.

info@tobo-group.com