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Alloy Steel P12 Pipes | ASTM A335 Grade P12 Pipe Supplier & Stockist

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ASTM A335 Alloy Steel P12 Pipe

Alloy Steel P12 Pipes are chromium-molybdenum ferritic alloy steel pipes manufactured according to ASTM A335 Grade P12 Pipe and ASME SA335 Gr P12 Seamless Pipe specifications. These pipes offer excellent high-temperature strength, oxidation resistance, creep resistance, and pressure-handling capability, making them suitable for boilers, superheaters, heat exchangers, refineries, petrochemical plants, and power generation industries. Available in Schedule 40, Schedule 80, and Sch 160, P12 pipes are supplied in seamless construction with IBR and NACE MR0175 compliance for demanding industrial applications.

Detailed Information

Alloy Steel P12 Pipes | ASTM A335 Grade P12 Pipe & ASME SA335 Gr P12 Seamless Pipe 

Alloy Steel P12 Pipes are widely used in industries where elevated temperatures and high-pressure services demand superior mechanical performance. Manufactured from chromium-molybdenum alloy steel, these pipes provide outstanding creep resistance, oxidation resistance, and long service life.

We supply premium-quality ASTM A335 Grade P12 Pipe manufactured according to international quality standards. Every ASME SA335 Gr P12 Seamless Pipe is thoroughly inspected to ensure dimensional accuracy, strength, corrosion resistance, and reliable performance under demanding operating conditions.

Our inventory includes A335 P12 Chrome Moly Pipe in multiple sizes, wall thicknesses, schedules, and lengths to meet project requirements across power plants, petrochemical facilities, chemical processing units, oil & gas industries, and industrial boilers.

Whether customers require ASTM A335 P12 Ferritic Alloy Steel Pipe, SA335 Grade P12 Pipe Stockist services, or project quantities of IBR Approved ASTM A335 P12 Pipe, we offer dependable supply backed by complete mill documentation and third-party inspection support.

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New York City, Los Angeles, Chicago, Houston, Phoenix, Philadelphia, San Antonio, San Diego, Dallas, San Jose, Austin, Jacksonville, Fort Worth, Columbus, Charlotte, San Francisco, Indianapolis, Seattle, Denver, Washington, Boston, El Paso, Nashville, Detroit, Oklahoma City, Portland, Las Vegas, Memphis, Louisville, Baltimore, Milwaukee, Albuquerque, Tucson, Fresno, Mesa, Sacramento, Atlanta, Kansas City, Colorado Springs, Omaha, Raleigh, Miami, Long Beach, Virginia Beach, Oakland, Minneapolis, Tulsa, Tampa, Arlington, New Orleans, Wichita, Bakersfield, Cleveland, Aurora, Anaheim, Honolulu, Santa Ana, Riverside, Corpus Christi, Lexington, Henderson, Stockton, Saint Paul, Cincinnati, St. Louis, Pittsburgh, Greensboro, Lincoln, Anchorage, Plano, Orlando, Irvine, Newark, Durham, Chula Vista, Toledo, Fort Wayne, St. Petersburg, Laredo, Jersey City, Chandler, Madison, Lubbock, Scottsdale, Reno, Buffalo, Gilbert, Glendale, North Las Vegas, Winston-Salem, Chesapeake, Norfolk, Fremont, Garland, Irving, Hialeah, Richmond, Boise, Spokane, Baton Rouge, Tacoma, San Bernardino, Modesto, Fontana, Des Moines, Moreno Valley, Santa Clarita, Fayetteville, Birmingham, Oxnard, Rochester, Port St. Lucie, Grand Rapids, Huntsville, Salt Lake City, Frisco, Yonkers, Amarillo, Glendale, Huntington Beach, McKinney, Montgomery, Augusta, Aurora, Akron, Little Rock, Tempe, Columbus, Overland Park, Grand Prairie, Tallahassee, Cape Coral, Mobile, Knoxville, Shreveport, Worcester, Ontario, Vancouver, Sioux Falls, Chattanooga, Brownsville, Fort Lauderdale, Providence, Newport News, Rancho Cucamonga, Santa Rosa, Peoria, Oceanside, Elk Grove, Salem, Pembroke Pines, Eugene, Garden Grove, Cary, Fort Collins, Corona, Springfield, Jackson, Alexandria, Hayward, Clarksville, Lakewood, Lancaster, Salinas, Palmdale, Hollywood, Springfield, Macon, Kansas City, Sunnyvale, Pomona, Killeen, Escondido, Pasadena, Naperville, Bellevue, Joliet, Murfreesboro, Midland, Rockford, Paterson, Savannah, Bridgeport, Torrance, McAllen, Syracuse, Surprise, Denton, Roseville, Thornton, Miramar, Pasadena, Mesquite, Olathe, Dayton, Carrollton, Waco, Orange, Fullerton, Charleston, West Valley City, Visalia, Hampton, Gainesville, Warren, Coral Springs, Cedar Rapids, Round Rock, Sterling Heights, Kent, Columbia, Santa Clara, New Haven, Stamford, Concord, Elizabeth, Athens, Thousand Oaks, Lafayette, Simi Valley, Topeka, Norman, Fargo, Wilmington, Abilene, Odessa, Columbia, Pearland, Victorville, Hartford, Vallejo, Allentown, Berkeley, Richardson, Arvada, Ann Arbor, Rochester, Cambridge, Sugar Land, Lansing, Evansville, College Station, Fairfield, Clearwater, Beaumont, Independence, Provo, West Jordan, Murrieta, Palm Bay, El Monte, Carlsbad, North Charleston, Temecula, Clovis, Springfield, Meridian, Westminster, Costa Mesa, High Point, Manchester, Pueblo, Lakeland, Pompano Beach, West Palm Beach, Antioch, Everett, Downey, Lowell, Centennial, Elgin, Richmond, Peoria, Broken Arrow, Miami Gardens, Billings, Jurupa Valley, Sandy Springs, Gresham, Lewisville, Hillsboro, Ventura, Greeley, Inglewood, Waterbury, League City, Santa Maria, Tyler, Davie, Lakewood, Daly City, Boulder, Allen, West Covina, Sparks, Wichita Falls, Green Bay, San Mateo, Norwalk, Rialto, Las Cruces, Chico, El Cajon, Burbank, South Bend, Renton, Vista, Davenport, Edinburg, Tuscaloosa, Carmel, Spokane Valley, San Angelo, Vacaville, Clinton, Bend, Woodbridge.

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ASTM A335 Alloy Steel P12 Pipe Specifications

Specifications

:

ASTM A 335 / ASME SA 335

Dimensions

:

ASTM, ASME and API

Range

:

1/2” OD up to 5” OD, customs diameters also available

Size

:

6.35mm o.d to 101.60mm o.d

Schedule

:

SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules, upto 12mm thk

Type

:

Seamless / Fabricated

Form

:

Round, Square, Rectangular, Hydraulic Etc.

Length

:

Single Random, Double Random & Cut Length.

Piping End

:

Plain End, Beveled End, Treaded.

ASTM A335/ASME SA335 P12 High-Pressure Steel Pipe Chemical Composition :

Grade

UNS

C, %

Mn, %

P, %

S, %

Si, %

Cr, %

Mo, %

P12

K11597

0.15 max

0.30-0.60

0.025 max

0.025 max

0.50-1.00

1.00-1.50

0.44-0.65

Seamless Heat Exchange Alloy Steel P12 Pipes Mechanical properties:

Tensile Strength , MPa

Yield Strength, MPa

Elongation, %

Hardness, HB

415 min

205 min

30 min

179 max

Alloy Steel A335 P12 Seamless Piping Tolerance

Outside Diameter

OD Tolerance

WT Tolerance

Ovality Tolerance

Cut Length Tolerance

OD≤ 12, 7 mm

± 0, 13 mm

± 15 %

–

+ 3, 18 mm, – 0 mm

12, 7 mm < OD ≤ 38, 1 mm

± 0, 13 mm

± 10 %

max, 1, 65 mm

+ 3, 18 mm, – 0 mm

38, 1 mm < OD ≤ 88, 9 mm

± 0, 25 mm

± 10 %

max, 2, 41 mm

+ 4, 76 mm, – 0 mm

 

Alloy Steel P12 Outside Diameter

Hot rolled

Outside Diameter, mm

Tolerance, mm

OD≤101.6

+0.4/-0.8

101.6＜OD≤190.5

+0.4/-1.2

190.5＜OD≤228.6

+0.4/-1.6

Cold Drawn

Outside Diameter, mm

Tolerance, mm

OD＜25.4

±0.10

25.4≤OD≤38.1

±0.15

38.1＜OD＜50.8

±0.20

50.8≤OD＜63.5

±0.25

63.5≤OD＜76.2

±0.30

76.2≤OD≤101.6

±0.38

101.6＜OD≤190.5

+0.38/-0.64

190.5＜OD≤228.6

+0.38/-1.14

Wall thickness of Grade P12 Pipe

Hot rolled

Outside Diameter, mm

Tolerance, %

OD≤101.6, WT≤2.4

+40/-0

OD≤101.6, 2.4＜WT≤3.8

+35/-0

OD≤101.6, 3.8＜WT≤4.6

+33/-0

OD≤101.6, WT>4.6

+28/-0

OD>101.6, 2.4＜WT≤3.8

+35/-0

OD>101.6, 3.8＜WT≤4.6

+33/-0

OD>101.6, WT>4.6

+28/-0

Cold Drawn

Outside Diameter, mm

Tolerance, %

OD≤38.1

+20/-0

OD>38.1

+22/-0

 

ASTM A335 Gr P12 Pipe Weight & Schedule Chart

Size NPS

Pipe O.D.

Wall Thickness

Pipe I.D.

Weight per Foot

Standard to XXHY

Schedule

Pipe #

Section Modulus

Gallon Capacity Per Linear Foot

1/2

0.84

0.109

0.622

0.85

STD

40

.0407

.0158

0.147

0.546

1.09

XHY

80

.0478

.0122

0.188

0.464

1.31

160

.0528

.0088

0.294

0.252

1.72

XXHY

.0577

.0026

3/4

1.05

0.113

0.824

1.13

STD

40

.0705

.0277

0.154

0.742

1.48

XHY

80

.0853

.0225

0.219

0.612

1.95

160

.1006

.0153

0.308

0.434

2.44

XXHY

.1103

.0077

1

1.315

0.133

1.049

1.68

STD

40

.1328

.0449

0.179

0.957

2.17

XHY

80

.1606

.0374

0.250

0.815

2.85

160

.1904

.0271

0.358

0.599

3.66

XXHY

.2136

.0146

1 1/4

1.66

0.140

1.380

2.27

STD

40

.2346

.0777

0.191

1.278

3.00

XHY

80

.2913

.0666

0.250

1.160

3.77

160

.3421

.0549

0.382

0.896

5.22

.4110

.0328

1 1/2

1.90

0.145

1.610

2.72

STD

40

.3262

.1058

0.200

1.500

3.63

XHY

80

.4118

.0918

0.281

1.338

4.86

160

.5079

.0730

0.400

1.100

6.41

.5977

.0494

2

2.375

0.109

2.157

2.64

10

.4205

.1898

0.154

2.067

3.66

STD

40

.5606

.1743

0.218

1.939

5.03

XHY

80

.7309

.1534

0.250

1.875

5.68

.8045

.1434

0.281

1.813

6.29

.8666

.1344

0.344

1.687

7.47

160

.9806

.1161

0.436

1.503

9.04

XXHY

1.1043

.0922

2 1/2

2.875

0.120

2.635

3.53

10

.6870

.2833

0.203

2.469

5.80

STD.

40

1.0640

.2487

0.216

2.443

6.14

1.1169

.2435

0.250

2.375

7.02

1.2468

.2301

0.276

2.323

7.67

XHY

80

1.3386

.2202

0.375

2.125

10.02

160

1.6371

.1842

0.552

1.771

13.71

XXXHY

1.9971

.1280

3

3.50

0.120

3.260

4.34

1.0411

.4336

0.156

3.188

5.58

1.3122

.4147

0.172

3.156

6.12

1.4265

.4064

0.188

3.124

6.66

1.5342

.3984

0.216

3.068

7.58

STD.

40

1.7241

.3840

0.250

3.000

8.69

1.9372

.3672

0.281

2.938

9.67

2.1207

.3521

0.300

2.900

10.26

XHY

80

2.2253

.3431

0.438

2.624

14.34

160

2.8774

.2811

0.600

2.300

18.6

XXHY

3.4243

.2158

3 1/2

4.0

0.120

3.760

4.98

10

1.3776

.5768

0.226

3.548

9.12

STD.

140

2.3939

.5136

0.250

3.500

10.02

2.6001

.4998

0.281

3.438

11.17

2.8562

.4821

0.318

3.364

12.52

XHY

80

3.1400

.4617

0.636

2..728

22.87

XXHY

4.8795

.3085

4

4.5

0.120

4.260

5.62

10

1.7612

.7404

0.156

4.188

7.24

2.2354

.7156

0.188

4.124

8.67

2.6296

.6942

0.203

4.094

9.32

2.8173

.6838

0.219

4.062

10.02

3.0184

.6725

0.237

4.026

10.80

STD.

40

3.2145

.6613

0.250

4.000

11.36

3.3611

.6528

0.281

3.938

12.67

60

3.7021

.6326

0.312

3.876

13.97

4.0273

.6126

0.337

3.826

15.00

XHY

80

4.2713

.5972

0.438

3.624

19.02

120

5.1790

.5361

0.531

3.438

22.53

160

5.8997

.4822

0.674

3.152

27.57

XXHY

6.7927

.4054

5

5.563

0.188

5.187

10.80

4.1161

1.0979

0.219

5.125

12.51

4.7279

1.0716

0.258

5.047

14.63

STD.

40

5.4500

1.0391

0.281

5.001

15.87

5.8644

1.0204

0.312

4.939

17.51

6.4074

.99647

0.344

4.875

19.19

6.9358

.9696

0.375

4.813

20.80

XHY

80

7.4300

.9449

0.500

4.563

27.06

120

9.2534

.8495

0.625

4.313

32.99

160

10.7976

.7590

0.750

4.063

38.59

XXHY

12.0954

.6734

6

6.625

0.109

6.407

7.59

5

3.5769

1.6748

0.134

6.357

9.30

10

4.3475

1.6488

0.156

6.313

10.79

5.0107

1.6260

0.188

6.249

12.94

5.9351

1.5937

0.203

6.219

13.94

6.3804

1.5780

0.219

6.187

15.00

6.8261

1.5620

0.250

6.125

17.04

7.6905

1.5306

0.280

6.065

18.99

STD.

40

8.4958

1.5008

0.312

6.001

21.06

9.3416

1.4688

0.344

5.937

23.10

10.111

1.4391

0.375

5.875

25.05

10.893

1.4082

0.432

5.761

28.60

XHY

80

12.224

1.3541

0.500

5.625

32.74

13.711

1.2909

0.562

5.501

36.43

120

14.9806

1.2346

0.625

5.375

40.09

16.1821

1.1787

0.719

5.187

45.39

160

17.8243

1.0977

0.864

4.897

53.21

XXHY

20.025

.9784

1.000

4.625

60.13

21.7719

.8727

1.125

4.375

66.14

23.1237

.7809

Types of Alloy Steel P12 Chrome Moly Pipe

Alloy Steel P12 Pipe P12 Alloy Steel A335 Pipe
ASTM A335 Grade P12 Pipe ASTM A335 P12 Alloy Steel Seamless Pipe
High-Pressure P12 Boiler Pipe ASME SA335 P12 Alloy Steel Rectangular Pipe
Alloy Steel P12 Seamless Pipe Alloy Steel Gr P12 Heater Pipe
ASME SA 335 Alloy Steel P12 Seamless Pipe IBR Alloy Steel P12 Pipe
Alloy Steel P12 Custom Pipe ASME SA / ASTM A335 P12 Pipe
Alloy Steel Grade P12 Round Pipe P12 Pipe Dealer
Alloy A335 P12 Seamless Square Pipe ASME SA335 P12 Alloy Steel Seamless Pipe
AISI P12 ERW Pipe ASTM A335 P12 Pipe
Alloy Steel P12 EFW Pipe Alloy Steel P12 Square Pipe
sA335 P12 material Pipe Alloy Steel P12 Round Pipe
Alloy Gr. P12 Pipe SA335 P12 Alloy Steel High-Pressure Pipe
ASME SA335 P12 Pipe SA335 P12 Boiler Pipe
ASTM SA335m P12 square Pipe Alloy Steel P12 Electropolish Pipe
Alloy Steel P12 Custom Pipe Alloy Steel P12 Pipe
ASME SA335 P12 Alloy Steel Pipe ASME SA335 P12 square cylinder Pipe
ASTM A335 P12 Pipe Material ASTM A335 P12 Pipes
SA335 P12 Thermal Conductivity Pipes ASTM A335 P12 Piping
ASTM A335 Grade P12 Pipes ASTM A335 P12 Pipes
SA335 P12 Material ASME SA335 Grade P12 Pipes
ASTM SA335 P12 Pipes ASTM A335 Gr P12 Pipes
SA335 P12 Pipes Tubo A335 P12 Pipes
SA335 P12 Seamless Alloy Pipe ASTM A335 P12 Boiler Pipe
ASTM A335 P12 Pipes SA335 P12 Piping
SA335-P12 ASTM A335 P12 Steel
SA 335 Gr P12 Pipes SA335 P12 Pipes
ASME SA335 P12 Pipes ASTM A335 P12 Boiler Pipe
ASTM A335 Grade P12 Pipe
 ASME SA335 Gr P12 Seamless Pipe
ASTM A335 P12 Ferritic Alloy Steel Pipe A335 P12 Chrome Moly Pipe
IBR Approved ASTM A335 P12 Pipe
 NACE MR0175 A335 P12 Pipe
EN 13CrMo4-5 / WERKSTOFF NR. 1.7335 Pipe UNS K11562 Pipe
1Cr-1/2Mo Low Alloy Steel Pipe
 ASME SA335 P12 Schedule 40 Pipe
ASME SA335 P12 Schedule 80 Pipe ASME SA335 P12 Sch 160 Pipe

Applications of ASTM A335 P12 Ferritic Alloy Steel Pipe

The excellent high-temperature properties of ASTM A335 P12 Ferritic Alloy Steel Pipe make it suitable for demanding industrial environments.

Typical applications include:

  • Thermal power plants
  • Boiler installations
  • Superheater tubes
  • Heat exchangers
  • Pressure vessels
  • Steam pipelines
  • Petrochemical plants
  • Oil & gas processing
  • Refineries
  • Fertilizer plants
  • Chemical processing industries
  • Sugar plants
  • Offshore platforms
  • Process piping
  • Industrial manufacturing plants

Related Alloy Steel Pipes Grades

Why Choose Our Alloy Steel P12 Pipes?

We focus on delivering reliable piping solutions that meet international quality requirements for critical industrial applications.

Our advantages include:

  • Large inventory of SA335 Grade P12 Pipe Stockist
  • Complete range of ASTM A335 P12 seamless pipes
  • Competitive pricing
  • Fast worldwide delivery
  • Third-party inspection available
  • EN 10204 3.1 Test Certificates
  • IBR Approved ASTM A335 P12 Pipe
  • NACE MR0175 compliant material
  • Custom cutting and machining
  • Secure export packaging
  • Experienced technical support
  • Strict quality control procedures

Every A335 P12 Chrome Moly Pipe undergoes rigorous inspection including dimensional verification, hydrostatic testing, ultrasonic testing, PMI, and mechanical testing before dispatch.

    Request a Quote for Alloy Steel P12 Pipes

    Looking for a reliable supplier of Alloy Steel P12 Pipes? We offer a complete range of ASTM A335 Grade P12 Pipe, ASME SA335 Gr P12 Seamless Pipe, A335 P12 Chrome Moly Pipe, and ASTM A335 P12 Ferritic Alloy Steel Pipe in multiple sizes and schedules. Contact us today for competitive pricing, mill test certificates, project support, and fast global delivery.

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