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Alloy Steel Tube & Pipe Supplier

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Alloy Steel Pipe Supplier

SA179 Tube proudly offers a broad spectrum of Alloy Steel pipes, commonly known as Chrome Moly Steel pipes. These pipes are alloyed with elements like chrome, molybdenum, and vanadium, typically ranging between 1.00% to 0.50%. Representing seamless steel pipes, Alloy Steel pipes exhibit superior performance compared to standard seamless steel pipes.

Key Features of Alloy Steel Pipes:

  • Versatile Alloying Elements: Alloy Steel pipes are crafted with a mix of chrome, molybdenum, and vanadium, giving them exceptional properties.
  • Enhanced Performance: High-temperature resistance, low-temperature resilience, and corrosion resistance make Alloy Steel pipes suitable for diverse applications.
  • Widespread Utility: Alloy tubes find extensive use in industries such as petroleum, aerospace, chemical, electric power, boiler manufacturing, military applications, and more.

Types of Alloy Steel Pipes:

  1. Low Alloy Steel Pipes:
    • Incorporating elements to enhance strength and hardenability, Low Alloy Steel pipes meet specific application requirements.
  2. High Alloy Steel Pipes:
    • Known for resistance to corrosion, high-temperature sustainability, and exceptional yield and impact results, High Alloy Steel pipes are tailored for specialized applications.
  3. Alloy Steel Seamless Pipes:
    • Providing seamless performance, Alloy Steel Seamless Pipes offer reliability and efficiency in various industrial processes.
  4. Alloy Steel Welded Pipes:
    • Crafted for durability and resilience, Alloy Steel Welded Pipes cater to applications preferring a welded construction.

Apart from chrome, molybdenum, and vanadium, Alloy Steel pipes can be enriched with carbon elements like cobalt, nickel, niobium, titanium, tungsten, and zirconium. These additions contribute to specific alloying effects, each chosen for its unique benefits.

In the piping industry, every steel pipe is essentially an alloy pipe, whether it’s a carbon alloy pipe or a chrome moly alloy steel pipe. The term ‘alloy steel pipe’ is used when the content of Manganese surpasses 1.65%, Silicon exceeds 0.6%, and copper is elevated beyond 0.6%.

Alloy Steel pipes undergo essential heat treatment processes to fine-tune mechanical properties in alignment with specific alloying elements. Several heat treatment methods play a pivotal role in shaping the performance of Alloy Steel pipes:

  1. Normalize Quench and Tempering:
    • This method involves normalizing the steel, followed by quenching and tempering. It aims to strike a balance between hardness and toughness, enhancing the overall mechanical attributes of the alloy.
  2. Quench and Tempering:
    • In this process, Alloy Steel pipes are quenched and subsequently tempered to optimize hardness and strength. This treatment imparts superior resistance to wear and fatigue, making the pipes suitable for demanding applications.
  3. Normalizing & Hardening:
    • Normalizing precedes hardening, where the steel is heated to a specific temperature and then cooled in the air. The subsequent hardening step further enhances the hardness and strength of Alloy Steel pipes, ensuring robust and durable performance.

SA179 Tube, based in Mumbai, India, stands as a reliable stockist and supplier of Alloy Steel pipes. Our seamless pipes range from ½ to 24 inches, offering length variations from 4-7 meters (single random length) to 7-13 meters (double random lengths).

Featuring a black varnished finish and plain or beveled ends, our pipes can be customized to meet unique client requirements. We specialize in providing cut-to-length pipes, ensuring tailored solutions for diverse industrial applications. Rely on SA179 Tube for top-notch Alloy Steel pipes that undergo strategic heat treatments, delivering unmatched performance and reliability in every application.

Alloy Steel Pipe Specifications

Specifications ASTM A 335 ASME SA 335
Dimensions ASTM, ASME and API
Size 1/8″NB TO 30″NB IN
Tubing Size 1 / 2” OD up to 5” OD, customs diameters also available
Outer Diameter 6-2500mm; WT:1-200mm
Schedule SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Grade STM A335 Gr. P5, P9, P11, P12, P21, P22 & P91, ASTM A213 – T5, T9, T11, T12, T22, T91, ASTM A691
Length Within 13500mm
Type Seamless / Fabricated
Form Round, Hydraulic Etc
Length Single Random, Double Random & Cut Length.
End Plain End, Beveled End, Treaded

Alloy Steel Chemical Composition

Alloy Steel C Cr Mn Mo P S Si
0.05 – 0.15 1.00 – 1.50 0.30 – 0.60 0.44 – 0.65 0.025 max 0.025 max 0.50 – 1.00

Alloy Steel Mechanical Property

Tensile Strength, MPa Yield Strength, MPa Elongation, %
415 min 205 min 30 min

Alloy Steel Outside Diameter & Tolerance of ASME SA335 Alloy Pipe

ASTM A450 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
ASTM A530 & ASTM A335 NPS Outside Diameter, inch Tolerance, mm
1/8≤OD≤1-1/2 ±0.40
1-1/2<OD≤4 ±0.79
4<OD≤8 +1.59/-0.79
8<OD≤12 +2.38/-0.79
OD>12 ±1%

ASME SA335 Alloy Steel Custom Pipes Wall thickness

STM A450 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 A530 NPS Outside Diameter, inch Tolerance, %
1/8≤OD≤2-1/2 +20.0/-12.5
3≤OD≤18, WT/OD≤5% +22.5/-12.5
3≤OD≤18, WT/OD>5% +15.0/-12.5
OD≥20, WT/OD≤5% +22.5/-12.5
OD≥20, WT/OD>5% +15.0/-12.5

Alloy Steel Grade Pipes Heat Treatment

P5, P9, P11, and P22
Grade Heat Treatment Type Normalizing Temperature Range F [C] Subcritical Annealing  or Tempering Temperature Range F  [C]
P5 (b,c) Full or Isothermal Anneal
Normalize and Temper ***** 1250 [675]
Subcritical Anneal (P5c only) ***** 1325 – 1375 [715 – 745]
P9 Full or Isothermal Anneal
Normalize and Temper ***** 1250 [675]
P11 Full or Isothermal Anneal
Normalize and Temper ***** 1200 [650]
P22 Full or Isothermal Anneal
Normalize and Temper ***** 1250 [675]
P91 Normalize and Temper 1900-1975 [1040 – 1080] 1350-1470 [730 – 800]
Quench and Temper 1900-1975 [1040 – 1080] 1350-1470 [730 – 800]

Supply and Exporter of Alloy Steel Pipe & Tube in Cities like

Pimpri-Chinchwad, Chandigarh, Kuwait City, Ulsan, Ankara, Geoje-si, Hanoi, Noida, Secunderabad, Sharjah, Los Angeles, Ahmedabad, Caracas, Al Khobar, Mexico City, Jaipur, New York, Tehran, Gimhae-si, Muscat, Jakarta, Montreal, Perth, Chiyoda, Madrid, Pune, Baroda, Nagpur, Ludhiana, Surat, Melbourne, Lagos, Bengaluru, Kuala Lumpur, Algiers, Ernakulam, Haryana, Courbevoie, London, Dammam, Brisbane, Thane, Aberdeen, Hong Kong, Doha, Houston, Ahvaz, Bogota, Bangalore, Cochin, Anand, Nadiad, ankleshwar, Bharuch, vapi, Valsad, Medak, Godavari, Mumbai, Dallas, Santiago, Bangkok, New Delhi, Ranchi, Hyderabad, Lahore, Indore, Jeddah, Singapore, Kanpur, Moscow, Coimbatore, Seoul, Navi Mumbai, Granada, Chennai, Sydney, Istanbul, Colombo, Faridabad, Dubai, Howrah, Toronto, Rajkot, Karachi, Milan, Bhopal, Nashik, Cairo, Riyadh, Edmonton, Rio de Janeiro, Kolkata, La Victoria, Vung Tau, Gurgaon, Ho Chi Minh City, Thiruvananthapuram, Visakhapatnam, Petaling Jaya, Atyrau, Vadodara, Jamshedpur, Abu Dhabi, Al Jubail, Manama, Busan, Calgary, Port-of-Spain.

Supply and Exporter of Alloy Steel Pipe & Tube in Countries like

Taiwan, Mexico, Iran, Namibia, Afghanistan, Netherlands, Nepal, Ireland, Libya, Morocco, Iran, Switzerland, Finland, Slovakia, Pakistan, Australia, Serbia, Angola, China, Philippines, Czech Republic, Belgium, Estonia, Costa Rica, Croatia, Sweden, Venezuela, Colombia, India, Belarus, Jordan, Azerbaijan, Mongolia, Vietnam, Ghana, Iraq, Algeria, Puerto Rico, New Zealand, Singapore, Indonesia, Ukraine, Israel, Mexico, Hong Kong, Bhutan, Germany, Brazil, Plan, Yemen, Malasiya, USA, Cambodia, Laos, Uganda, Tanzania, Sudan, Democratic Republic of Congo, zambia, Ethiopia, Brunei, Madagascar, Niger, Mali, Bangladesh, Bolivia, United States, Ecuador, Lebanon, Italy, South Korea, Denmark, Norway, Sri Lanka, Zimbabwe, Japan, Yemen, Oman, Portugal, Lithuania, Canada, Macau, Bahrain, Austria, Bulgaria, Spain, Kenya, United Kingdom, United Arab Emirates, Kazakhstan, Egypt, Saudi Arabia, Gambia, Argentina, Romania, Tibet, France, Chile, Gabon, South Africa, Trinidad & Tobago,Tunisia, Turkey, Nigeria, Peru, Russia, Chile, Nigeria, Hungary, Qatar, Greece, Malaysia, Kuwait, Poland, Thailand, Poland.

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