Architects wrap buildings with Stainless Steel

With the pollen-rich landscapes of spring we discussed in our last post behind us and the sweltering days of summer beating down on our heads, the draw of cool shoreline breezes is tempting. What the casual beachgoer may not know, however, is that these waterfront locales often present challenging conditions that require special material applications to stand up to Mother Nature and ensure the longevity of coastal designs. Stainless steel plays a starring role in this success.

A popular medium in many design fields, stainless steel’s sleek finish and sharp lines appeal to both modern and contemporary sensibilities. Architects wrap buildings with it, industrial designers cloak gadgets in it, jewelry designers fashion accessories from it, and interior designers select it for kitchen sinks. Its corrosion-resistant properties also make it the best option for exterior applications in waterfront environments, compared to other metals (steel, galvanized steel, CORTEN steel, aluminum, iron, and bronze),— especially for brackish and saline waterways such as those of New York City’s coastal areas.

For our Hudson River Park Tribeca Section project, we designed a stainless steel railing at the pier’s edge, contributing to the installation’s longevity while enhancing the finish and aesthetic of this safety feature. Other cost-effective metals, like powder-coated or galvanized steel, were used for the park’s interior spaces. When designing with stainless steel, it is important that all attached metals, including connectors, fasteners, and anchors, are of the same material. Dissimilar metals in contact with stainless steel will accelerate corrosion and reduce the strength and lifespan of the product. This reaction is known as galvanic corrosion—a topic we’ll cover in a future post.

Steel Plate Product:

Stainless steel is available in a multitude of grades, each classified based on the percentages of the various alloy components present in the product. Altering the alloy content affects the metal’s characteristics, including its strength, corrosion resistance, brittleness, magnetism, etc. For example, Type 304 is the most widely used grade of the metal in landscape applications, whereas Type 420 is utilized for cutlery. Type 316 stainless steel, which has greater nickel content than Type 304, offers enhanced corrosion resistance in saline environments and is therefore typically specified for marine and waterfront landscape installations. Type 316 is slightly more expensive compared to Type 304, due to its alloy content, but its durability makes it a valuable investment. Type 316 stainless steel was used at our Hunts Point Landing project in the Bronx due to its proximity to Long Island Sound—a brackish waterway—whereas Type 304 was used at noteworthy non-marine projects including St. Louis’s Gateway Arch and New York City’s Unisphere.

Beyond the corrosion resistance and notable strength of stainless steel, the breadth of available finishes and forms is another appealing aspect of this metal for designers. It is available in multiple finishes ranging from the highly polished look often used for interior applications or jewelry, to brushed finishes that more easily camouflage fingerprints and light debris, to a bead blast—almost matte—finish. Bead blast finish works well in exterior applications, as it retains far less heat than polished surfaces—no one wants to sit on a scalding hot bench as they catch a summer breeze off the water! At our Fulton Landing Pier, a number of forms and finishes were integrated into the project’s decorative railing, including polished or blasted stainless steel pipes, plates, cables and anchors, which enhanced its aesthetic appeal.

Thanks to improved technology, stainless steel plate can be cut to almost any shape, freeing the designer from right angles, straight edges, or measured radii. Designers can provide their design drawings to fabricators who can then perfectly transform their 2D schematics into 3D forms via laser and water jet cutters. Our West Thames Park in Battery Park City incorporates stainless steel mesh and rods into a colorfully painted steel shade structure that provides dappled shade for now—until its twining vines are able to provide a dense canopy, woven throughout the overhead structure.

Appropriate material selection is integral to the success and longevity of built environments. Also crucial to the success of a landscape, yet seldom discussed, is soil. Hidden out of sight below plants, mulch, and pavement, this vital material will be addressed in our next post.

Source:  metropolismag.com

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Terrie Brightman, RLA, ASLA is a practicing landscape architect at Mathews Nielsen Landscape Architects in New York City with nine years of professional experience. Since receiving her BLA from the Pennsylvania State University, she has worked on riverfronts in Pittsburgh, private residences in California and Florida, a sustainable community in Turkey, and multiple public parks, plaza and waterfronts throughout New York City. 

Stainless Steel 304

Dear valued customers,

Beyond-Steel menjual Stainless Steel 304 acerinox,Jindal, Heisei, Outokumpu import plat, sheet, roundbar dan chanel dengan ukuran dan ketebalan bervariasi. Untuk informasi stock dan harga silahkan hubungi kami:

Tel  : +62-021-2986 1684

Fax : +62-021-2986 1684

Mobile: +62-0819 0804 5114

E-mail: sales@beyond-steel.com

Characteristic Grades 304

Stainless steel grade 304 is the most versatile and widely used stainless steel. It is still sometimes referred to by its old name 18/8 which is derived from the nominal composition of type 304 being 18% chromium and 8% nickel. Stainless steel types 1.4301 and 1.4307 are also known as grades 304 and 304L respectively.

Stainless steel 304 is an austenitic grade that can be severely deep drawn. This property has resulted in 304 being the dominant grade used in applications like sinks and saucepans.

Stainless steel 304L is the low carbon version of 304. It is used in heavy gauge components for improved weldability. Some products such as plate and pipe may be available as “dual certified” material that meets the criteria for both 304 and 304L. 304H, a high carbon content variant, is also available for use at high temperatures.

Property data given in this document is typical for flat rolled products covered by ASTM A240/A240M. ASTM, EN or other standards may cover products sold. It is reasonable to expect specifications in these standards to be similar but not necessarily identical to those given in this datasheet.

Availability

Stainless steel 304 is available in Sheet, Bar, Wire, Rod, Strip, tube, pipe, and Channel, For all stock availability contact Sales.

Stainless steel 304 Sheet

Stainless steel 304 Plate

Stainless steel 304 Rod

Stainless steel 304 Tube

Stainless steel 304 Pipe

Stainless steel 304 Channel

Stainless Steel 304 Technical Data

Chemical Composition (%)

C : 0.05 – 0.08

Si : <= 1.0

Mn: <= 2.00

Ni : 8.00 – 11.00

Cr : 18.00 – 20.00

Tensile Strength (0.2%) : >= 53 Kgf/MM2

Yield Strength : >= 21 Kgf/MM2

Elongation : >= 40%

Hardness (HB) : <= 187 HB

Corrosion Resistance

304 has excellent corrosion resistance in a wide variety of environments and when in contact with different corrosive media. Pitting and crevice corrosion can occur in environments containing chlorides. Stress corrosion cracking can occur at temperatures over 60°C.
 
Heat ResistanceJustify Full304 has good resistance to oxidation in intermittent service up to 870°C and in continuous service to 925°C. However, continuous use at 425-860°C is not recommended if corrosion resistance in water is required. In this instance 304L is recommended due to its resistance to carbide precipitation.Where high strength is required at temperatures above 500°C and up to 800°C, grade 304H is recommended. This material will retain aqueous corrosion resistance.
 
Fabrication

Fabrication of all stainless steels should be done only with tools dedicated to stainless steel materials. Tooling and work surfaces must be thoroughly cleaned before use.These precautions are necessary to avoid cross contamination of stainless steel by easily corroded metals that may discolour the surface of the fabricated product.

Cold Working

304 stainless steel readily work hardens. Fabrication methods involving cold working may require an intermediate annealing stage to alleviate work hardening and avoid tearing or cracking. At the completion of fabrication a full annealing operation should be employed to reduce internal stresses

Hot Working

Fabrication methods, like forging, that involve hot working should occur after uniform heating to 1149-1260°C. The fabricated components should then be rapidly cooled to ensure maximum corrosion resistance.

Heat Treatment

304 stainless steel cannot be hardened by heat treatment. Solution treatment or annealing can be done by rapid cooling after heating to 1010-1120°C.

Machinability

304 stainless steel has good machinability. Machining can be enhanced using the following rules:

  • Cutting edges must be kept sharp. Dull edges cause excess work hardening.
  • Cuts should be light but deep enough to prevent work hardening by riding on the surface of the material.
  • Chip breakers should be employed to assist in ensuring swarf remains clear of the work
  • Low thermal conductivity of austenitic alloys results in heat concentrating at the cutting edges. This means coolants and lubricants are necessary and must be used in large quantities.
Welding

Fusion welding performance for type 304 stainless steel is excellent both with and without fillers. Recommended filler rods and electrodes for stainless steel 304 is grade 308 stainless steel. For 304L the recommended filler is 308L. Heavy welded sections may require post-weld annealing. This step is not required for 304L. Grade 321 may be used if post-weld heat treatment is not possible.

 

Tabel Ukuran dan Berat Plat stainless steel 304 4’x8′ Beyond-steel Indonesia:

Stainless Steel Size  Berat (Kg)
Plate 304 1 mm x 4′ x 8′ 23.6 Kg
Plate 304 2 mm x 4′ x 8′ 47.2 Kg
Plate 304 3 mm x 4′ x 8′ 70.8 Kg
Plate 304 4 mm x 4′ x 8′ 94.4 Kg
Plate 304 5 mm x 4′ x 8′ 118 Kg
Plate 304 6 mm x 4′ x 8′ 141.6 Kg
Plate 304 8 mm x 4′ x 8′ 188.8 Kg
Plate 304 10 mm x 4′ x 8′ 236 Kg
Plate 304 12mm x 4′ x 8′ 283.2 Kg

Applications

304 stainless steel is typically used in:

  • Sinks and splashbacks
  • Saucepans
  • Cutlery and flatware
  • Architectural panelling
  • Sanitaryware and troughs
  • Tubing
  • Brewery, dairy, food and pharmaceutical production equipment
  • Springs, nuts, bolts and screws
  • Medical implants

Related Stainless Steel:

Stainless Steel Grade Comparison

Comparison of Grade Specification:

Grade

Japanese

UNS No

Old British

Euronorm

Swedish

JIS

BS

No

Name

SS

301

SUS 301

S30100

301S21

1.431

X10CrNi18-8

2331

302

SUS 302

S30200

302S25

1.4319

303

SUS 303

S30300

303S31

1.4305

X8CrNiS18-9

2346

303Se

SUS 303Se

S30323

303S42

304

SUS 304

S30400

304S31

1.4301

X5CrNi18-10

2332

304L

SUS 304L

S30403

304S11

1.4306

X2CrNi18-11

2352

304H

S30409

1.4948

X6CrNi18-11

304N

SUS 304N1

S30451

2371

(302HQ)

SUS XM7

S30430

394S17

1.4567

X3CrNiCu18-9-4

305

SUS 305

S30500

305S19

1.4312

309S

SUS 309S

S30908

309S24

1.4833

X12CrNi23-13

310

SUH 310

S31000

310S24

1.484

X15CrNi25-20

310S

SUS 310S

S31008

310S16

1.4845

X8CrNi25-21

2361

314

S31400

1.4841

X15CrNiSi25-21

316

SUS 316

S31600

316S31

1.4401

X5CrNiMo17-12-2

2347

316L

SUS 316L

S31603

316S11

1.4404

X2CrNiMo17-12-2

2348

316H

S31609

316S51

1.4919

316N

SUS 316N

S31651

1.4406

X2CrNiMoN17-11-2

2375

316Ti

SUS 316Ti

S31635

320S31

1.4571

X10CrNiMoTi18-10

2350

317L

SUS 317L

S31703

317S12

1.4438

X2CrNiMo18-16

2367

321

SUS 321

S32100

321S31

1.4541

X6CrNiTi18-10

2337

329

SUS 329J1

S32900

1.446

X8CrNiMo27-5

2324

347

SUS 347

S34700

347S31

1.455

X6CrNiNb18-10

2338

403

SUS 403

S40300

403S17

1.4

X7Cr13

2301

405

SUS 405

S40500

405S17

1.4002

X7CrAl13

409

SUH 409

S40900

409S19

1.4512

X6CrTi12

410

SUS 410

S41000

410S21

1.4006

X12Cr13

2302

416

SUS 416

S41600

416S21

1.4005

X12CrS13

2380

416Se

S41623

416S41

420

SUS 420J1

S42000

420S37

1.4021

X20Cr13

2303

420F

SUS 420F

S42020

416S29

430

SUS 430

S43000

430S17

1.4016

X8Cr17

2320

430F

SUS 430F

S43020

1.4104

X12CrMoS17

2383

431

SUS 431

S43100

431S29

1.4057

X17CrNi16-2

2321

434

SUS 434

S43400

434S17

1.4113

X6CrMo17-1

2325

440C

SUS 440C

S44004

1.4125

X105CrMo17

444

SUS 444

S44400

1.4521

X1CrMoTi18-2

2326

630

SUS 630

S17400

1.4542

X5CrNiCuNb16-4

631

SUS 631

S17700

460S52

1.4568

X7CrNiAl17-7

2388

(904L)

N08904

904S13

1.4539

X1NiCrMoCuN25-20-5

2562

(2111HTR)

S30815

1.4835

X9CrNiSiNCe21-11-2

2368

-2205

SUS 329J3L

S31803

318S13

1.4462

X2CrNiMoN22-5-3

2377

-2304

S32304

1.4362

X2CrNiN23-4

2327

-2507

S32750

1.441

X2CrNiMoN25-7-4

2328

(4565S)

S34565

1.4565

X2CrNiMnMoN24-17-6-4

(Zeron100)

S32760

1.4501

X2CrNiMoCuWN25-7-4

(UR52N+)

S32520

1.4507

X2CrNiMoCuN25-6-3

Related Stainless Steel: