PETROL STEEL CO., LTD is a leading stockist and supplier of Alloy Steel Pipe in China.
The size ranges of PESCO ASTM A333 low-temperature alloy steel tubes: 1″ – 47″
The ASTM A333 low-temperature alloy steel tubes are available in the following schedules: standard (STD), extra heavy (XH), 100, 120, 160, and XXH.
Seamless alloy steel tube is fit for power stations, nuclear, boilers, heat exchangers, power generation, high-pressure vessels, petrochemicals, and other energy-related applications. It has excellent characteristics for high-pressure applications and high corrosion resistance, making it suitable for a wide range of industrial sectors.
The designations and the heat treatment methods of alloy steel tubes we can supply:
Quenched, tempered alloy steel tubes,
The cold finished (hard) BK (C),
The cold finished (soft) BKW (LC),
Cold finished and stress-relief BKS (SR),
annealed GBK (A),
Normalized NBK (N)
The types of ASTM A333 low-temperature alloy steel tubes we can supply are:
ASTM A333 Gr.3
ASTM A333 Gr.6
ASTM A333 Gr.7
ASTM A335 specifications of our pipe items:
The piping size:
OD: 14-1200 mm; WT: 1-47 mm.
Forging steel tubing, hot rolling of Alloy Steel Pipes, and extrusion of alloy pipes.
ASTM A 335 P11 forging pipes:
shafts with flanks, slugs, doughnuts, cubes, and other shapes
ASTM A 335 alloy pipes P11 finished goods condition:
hot forging, hot rolling + annealing, normalising, tempering, quenching + tempering, any conditions based on the customer’s requirement
ASTM A 335 P11 pipe surface conditions:
scaled (hot working finish), ground, rough machining, fine machining, based on the customer’s requirement
ASTM A 335 alloy P11 furnaces for metallurgical processing:
electrode arc + LF, VD, Vod, ESR, and vacuum consumable electrode.
ASTM A 335 p11 ultrasonic inspection:
100% ultrasonic inspection for any imperfections or based on the customer’s requirement.
ASTM A 335 Alloy Steel Pipes p22 specification: The pipes ordered to this specification shall be suitable for bending.
flanging (vanstoning) and similar forming operations, and for fusion welding.
Selection will depend upon design, service conditions, mechanical properties,
and high-temperature characteristics.
ASTM A 335 P22 equivalent standards: EN 10216-2, ASTM A213, ASME SA213, GOST 550-75, NBR 5603
ASTM A 335 alloy P22 Equivalent Material: T22, 10CrMo910, 10CrMo9-10, 1.7380, 11CrMo9-10, 1.7383
ASTM A 335 P22 tube manufacture process and heating
The pipe may be either hot-finished or cold-drawn, with the finishing heat treatment noted below.
ASTM A 335 alloy P22 pipe heat treatment
A, N+T
N+T, Q+T
N+T
ASTM A 335 alloy steel P22 tube Chemical Composition:
C, % Mn, % P, % S, % Si, % Cr, % Mo, %
0.05-0.15 0.30-0.60 0.025 max 0.025 max 0.50 max 1.90-2.60 0.87-1.13
ASTM A335/ASME A335 P22 Alloy Pipe Mechanical Properties:
Tensile Strength, MPa, Yield Strength, MPa, Elongation, %
415 min 205 min 30 min
ASTM A 335 alloy P1 tube with IBR certified (ASTM A335, A335M – 11 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service)
This specification covers seamless ferritic alloy steel with a nominal wall and minimum wall thickness intended for high-temperature service. Pipe ordered to this specification shall be suitable for bending, flanges (vanishing), and similar forming operations, as well as for fusion welding. The steel pipes shall be reheated and furnished in the fully annealed, isothermal annealed, or normalized and tempered condition. If furnished in the normalized and tempered condition, the minimum tempering temperature for Grades P5, P5b, P9, P21, and P22 shall be 1250°F and 675°C, respectively, and the minimum tempering temperature for Grades P1, P2, P11, P12, and P15 shall be 1200°F and 650°C. ASTM SA335 alloy steel tubes for boilers, superheaters and heat exchangers.
Seamless Alloy Steel Pipe Supplier & Manufacturer for Oil & Gas, Petrochemical & Power Projects
It is not common for an EPC material take-off to have an Alloy Steel Pipe as a commodity purchase. The grade, wall thickness, heat treatment, manufacturing route, inspection scope and documentation can all influence the fabrication, welding, installation and long-term service performance. PETROL STEEL CO., LTD. offers seamless alloy steel pipes for challenging oil & gas, petrochemical, refinery, power generation and industrial piping projects, with a procurement strategy that is driven by the real needs of international EPC contractors, project buyers and piping engineers. “We’re not just quoting a pipe price. “Our job is to help customers source specification-matched piping materials with controlled quality, traceability and project documentation.
ASTM A335 / ASME SA335 Chrome Moly Pipe for Critical Service
One of the most commonly specified material families for high-temperature and high-pressure piping is ASTM A335 / ASME SA335 Seamless Alloy Steel Pipe. International buyers also know these products as Chrome Moly Pipe, Chrome-Moly Steel Pipe, Cr-Mo Pipe or P-Grade Pipe. PETROL STEEL can accommodate commonly requested grades such as P11, P22 and P91 as per engineering specification. Other alloy grades are available depending on project requirements and qualified supply sources. These materials are widely used in steam systems, refinery process piping and boiler and power generation applications requiring high temperature strength, creep resistance and controlled metallurgical properties. Overseas piping suppliers also cite P5, P9, P11, P22 and P91 as core chrome-moly grades for power, refinery and petrochemical service.
Built Around EPC MTOs, Not Generic Product Lists
The project buyer typically begins with an MTO, line class, piping material specification or purchase requisition and not a generic product name. That’s why we’re able to develop our alloy steel pipe supply around the information procurement and engineering teams really need: ASTM A335 P11 / P22 / P91 seamless pipe, ASTM A213 T11 / T22 / T91 alloy tubes, ASTM A333 Grade 6 low-temperature pipe, EN 10216-2 alloy steel grades, nominal pipe size, OD, wall thickness, SCH 80, SCH 160 or XXS, pipe length, end preparation, heat-treatment condition, testing requirements and certification level. Where required, specifications can also include beveled ends for welding, special dimensional requirements, NDT, hydrostatic testing, PMI and third-party inspection. This approach helps to reduce the risk of receiving a technically incomplete quotation that needs to be clarified later during technical evaluation.
Heavy Wall, Large Diameter and Precision Alloy Steel Products
Different parts of a process or energy facility have different requirements for materials and dimensions. PETROL STEEL provides project support for Heavy Wall Seamless Alloy Steel Pipe, SCH 80 / SCH 160 / XXS Alloy Pipe, Large Diameter Alloy Steel Pipe, hot-finished alloy steel pipe and cold-drawn precision alloy steel tubes with grade, size and applicable standard. Plain or beveled ends can be provided for welding and fabrication as per the approved purchase specification for end preparation. For large or nonstandard dimensions, the technical review will concentrate on the applicable manufacturing standard, dimensional tolerances, heat treatment, testing, and production capability, rather than treating each alloy pipe as an interchangeable commodity. This is especially true for P91 and other creep-strength-enhanced materials where processing, heat treatment and documentation require more exacting control than ordinary carbon steel piping.
From Individual Pipes to Complete Piping Procurement
For EPC contractors and international project buyers, an alloy steel pipe inquiry is often commercially valuable beyond the pipe itself. So PETROL STEEL offers an integrated supply of seamless alloy pipes with matching butt weld fittings and forged flanges, allowing customers to consolidate related piping materials under one procurement channel. Typical combinations could be A335 P11/P22/P91 seamless pipe + A234 WP11/WP22/WP91 butt weld fittings + A182 alloy steel forged flanges, per project specification. This integrated approach offers a simplified approach to MTO-based purchasing, document control, packing and shipment coordination and reduces the need for an EPC buyer to manage multiple suppliers for technically related piping components. Similarly, global alloy piping suppliers position chrome-moly pipes, fittings and flanges as complementary products within project supply.
Quality Documentation and International Project Support
Material availability is just one facet of the supply decision for project procurement. PETROL STEEL works with qualified production partners and organizes technical review, quality inspection, documentation and export logistics as per purchase requirements. The documentation package may include Mill Test Certificates, EN 10204 3.1 or 3.2 certification if applicable, chemical and mechanical test results, heat-treatment records, dimensional inspection, hydrostatic or NDT reports, heat-number traceability and third-party inspection documentation based on the specification. Inspection requirements should always be defined in the purchase order and applicable material specification. They are not generic additions to every order. This discipline is especially true for EPC procurement, where traceability and document completeness may be as important as the physical material.
A Project-Oriented Alloy Steel Pipe Supply Partner
PETROL STEEL CO., LTD. is a leading international supplier of piping materials & equipment to oil & gas, petrochemical, refinery, LNG, power, marine and other energy intensive industrial projects. Our alloy steel pipe service is for customers who need more than a catalog quote: MTO, RFQ, line list or material specification can be submitted by EPC contractors, engineering companies, project procurement teams, piping fabricators, distributors and industrial buyers for technical review and commercial quotation. Whether it’s a standard ASTM A335 P11/P22 seamless pipe, a P91 Chrome Moly piping package, heavy wall alloy pipe for high-pressure service, or a coordinated supply of pipe, fittings and flanges, PETROL STEEL views every inquiry from the perspective of project compliance, material traceability and dependable international delivery. Send the grade, size, wall thickness, quantity, standard, inspection requirements and destination to our team for a specification-based quotation for your next alloy steel piping requirement.
ASTM A 519 pipes are mechanical tubes. SAE 1010 Mechanical Tubing Specifications:
ASTM A 519 alloy steel SAE 1010 mechanical tubing OD: 4-47 mm, WT: 0.5-60 mm
ASTM A 519 alloy pipes SAE 1010 Mechanical Tubing Standard: DIN2391, EN10305
Material: ST37, ST45, ST52, 09G2S, E355, SAE1010, SAE1020, SAE1045, SAE4130, SAE4140, SAE4150
ASTM A 519 steel pipes SAE 1010 Mechanical Tubing Delivery Condition: NBK (bright annealing without oxidization)
ASTM A 519 pipes SAE 1010 Mechanical Tubing Length: 5800 mm, 6000 mm.
Package: Bundles or wooden cases.
Surface Anti-rust: Both outside and internal tube surfaces are flushed with anti-rust oil.
Surface quality: very smooth and bright without oxide scale, pock, starch, crack and other defects.
Surface Cleanness: clean without iron scrap or dust, better for hydraulic system life. Mechanical Properties: Better extending rate and strength property after bending with no deformation, after flattening and flaring with no crack.
Tests: Tensile Strength Test, Flaring and Flattening Test, Hardness Test, Chemical Composition Test
The production process of ASTM A 519 alloy steel mechanical tubes SAE 1020
ASTM A 519 alloy steel mechanical tubes SAE 1020 Synopsis of Process Routing: Quality Carbon steel — Cold Drawn — Heat Treatment Without Oxidization (NBK Status) — Nondestructive Testing — Flushing The Internal Hole With Special Equipment Under The High Pressure — Dealing With Antirust Oil On Surface — Plastic Capping On Both Ends.
ASTM A 519 alloy pipes and mechanical tubes SAE 1020: The raw material we choose is high quality, and physical and chemical inspections will be conducted to ensure each batch is within the qualified range. After piecing, each piece of tube is checked to be in permitted size deviation; this procedure can guarantee higher thickness tolerance and concentricity.
ASTM A 519 alloy pipes, mechanical tubes, SAE 1020: Production process quality control: We use the domestic first-class drawing machine; the production process is controlled with a high-hardness alloy internal and external matrix, so the product dimensions tolerance and ovality are strictly controlled at a high level. Through the first, middle, and last process inspections, we ensure product quality.
ASTM A 519 mechanical tubes SAE 1020 Inner and Outer Surface Cleaning: We adopt an automatic inner surface cleaning machine, rotating brush cleaning and high-pressure oil flushing to clean the inner and outer surfaces. The new process for producing steel tubes can effectively remove all particulates attached to the inner and outer surfaces of the tubes, thus achieving the utmost surface cleanness and polish.
ASTM A 519 mechanical tubes SAE 1020 Finished tube anti-rust oil plating: We adopt a high-pressure spray plating method; the antirust oil is plated by a high-pressure jet after ten passes of filtering and one pass of precipitation to safeguard the tubes’ outer and inner surface cleanness and polish.
To get the exact quotations of alloy steel pipe and for more details of mechanical properties and chemical composition, please contact us freely; you will have instant feedback.https://www.petrolsteel.com/Contact-us
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Related References:
Forged Steel Pipe
Seamless Steel Pipe
Forged Pipe Fitting
High-Pressure Pipe Fitting
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https://www.petrolsteel.com/Seamless-Steel-Pipe-p
https://www.petrolsteel.com/Forged-Steel-Pipe-p
https://www.petrolsteel.com/Stainless-Steel-Pipe
https://www.petrolsteel.com/API-5CT-Casing-Tubing-OCTG-p
