15CrMoG 12Cr1MoVG GB5310 High Pressure Alloy Steel Pipe

15CrMoG 12Cr1MoVG GB5310 High Pressure Alloy Steel Pipe | Boiler Heat Resistant Alloy Pipe

Excellent high‑temperature creep strength, stable performance under long‑term high pressure & high temperature
Outstanding oxidation & corrosion resistance for boiler steam pipeline service
Strict GB5310 standard manufacturing, full‑range non‑destructive testing
Multiple shape options: round, square, rectangular & custom special profiles
Custom cutting & length service, fast delivery for power station & thermal projects

Product Overview

15CrMoG and 12Cr1MoVG are premium grade high‑pressure seamless alloy steel pipes manufactured complying with GB5310 standard, widely adopted for power‑station boiler superheater, reheater, main steam pipeline and high‑temperature pressure‑bearing components. These Cr‑Mo‑V series alloy grades are specially engineered to sustain continuous high‑temperature and high‑pressure working environments. Alloying elements chromium, molybdenum and vanadium significantly improve high‑temperature mechanical performance, anti‑oxidation and anti‑creep property. Our factory strictly controls raw material melting, hot piercing, hot‑rolling / cold‑drawing and full‑process heat‑treatment. We supply standard round pipes, square, rectangular alloy tubes and custom special‑shaped pipes according to client technical drawings. Wall thickness, fixed cutting length can be fully customized. Products are exported to Southeast Asia, Middle East for thermal‑power, boiler and petrochemical high‑temperature piping projects.

High Pressure Alloy Steel Pipe

Chemical & Mechanical Property Snapshot

Grade	C (%)	Si (%)	Mn (%)	Cr (%)	Mo (%)	V(%)	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)
15CrMoG	0.12~0.18	0.17~0.37	0.40~0.70	0.80~1.10	0.40~0.55	—	≥245	440~640	≥21
12Cr1MoVG	0.08~0.15	0.17~0.37	0.40~0.70	0.90~1.20	0.25~0.35	0.15‑0.30	≥255	470~640	≥21

Detailed Technical Specifications

Item	Specification
Product Name	GB5310 High Pressure Heat‑resistant Alloy Seamless Steel Pipe
Material Grades	15CrMoG, 12Cr1MoVG
Executive Standard	GB 5310‑2017
Product Form	Seamless pipe: Round / Square / Rectangular / Custom special shape
Manufacturing Process	Hot‑rolled seamless / Cold‑drawn seamless
Heat Treatment	Normalizing + Tempering
Outer Diameter Range	21.3mm ‑ 325mm
Wall Thickness Range	2.0mm ‑ 45mm
Available Length	Random length: 4‑12m; Fixed custom length: 1‑12m
Surface Condition	Black hot‑rolled surface / Anti‑rust oil / Varnish / Black painting
Pipe End Treatment	Plain end / Bevel end for welding; plastic end caps protection
Mandatory Inspection	Hydrostatic test, Ultrasonic test(UT), chemical composition analysis, tensile test, hardness test, metallographic inspection
Optional Inspection	Magnetic particle test(MT), Penetrant test(PT)
Document & Certificate	Mill Test Certificate(MTC), Inspection report, Heat number traceability document
MOQ(Minimum Order Quantity)	5 Ton; mixed sizes acceptable upon negotiation
Trade Terms	FOB, CFR, CIF, EXW
Payment Terms	T/T, L/C at sight
Packaging Detail	Both ends fitted with waterproof plastic caps; wrapped with waterproof kraft paper; bundled by high‑strength steel strips; wooden crate / pallet packaging for special‑shaped pipe optional
Lead Time	15‑25 working days against deposit
Additional Available Service	Saw cutting, length cutting, surface blasting, marking printing, custom‑shape fabrication per drawing

Shape Options

Available Pipe Shapes
Round High‑Pressure Alloy Pipe: Main product for boiler, heat‑exchanger, high‑pressure process pipeline, full Sch40‑Sch160 heavy wall sizes
Square Alloy Steel Pipe: Custom seamless square alloy tube for high‑pressure structural frame, pressure equipment support
Rectangular Alloy Steel Pipe: Custom seamless rectangular alloy profile for heavy‑duty industrial structural components
Special‑Shaped Alloy Pipe: Oval, hexagon and other special cross‑section, non‑standard dimension upon customer drawing

Dimension Reference Table

Outer Diameter	OD (inch)	Wall Thickness	WT (inch)
21.3 mm	0.84″	2.0 ~ 4.0 mm	0.079″ ~ 0.157″
33.7 mm	1.33″	2.5 ~ 6.0 mm	0.098″ ~ 0.236″
42.4 mm	1.67″	3.0 ~ 8.0 mm	0.118″ ~ 0.315″
48.3 mm	1.90″	3.0 ~ 10 mm	0.118″ ~ 0.394″
60.3 mm	2.37″	3.5 ~ 12 mm	0.138″ ~ 0.472″
88.9 mm	3.50″	4.0 ~ 16 mm	0.157″ ~ 0.630″
114.3 mm	4.50″	4.5 ~ 20 mm	0.177″ ~ 0.787″
168.3 mm	6.63″	6.0 ~ 25 mm	0.236″ ~ 0.984″

Product Comparison Table

Grade	Standard	Equivalent Grade	Main Application
15CrMoG	GB5310	A213 T12, 13CrMo44	Boiler superheater, high‑temp steam pipeline
12Cr1MoVG	GB5310	A213 T11, 10CrMo910	Power boiler reheater, main steam pipe

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Coal Chemical Syngas Pipeline

High-Pressure Piping for Hydrocracking Units

Main Steam Pipeline of Thermal Power Plant Boilers

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What is the difference between 15CrMoG and 12Cr1MoVG alloy pipe?

12Cr1MoVG contains vanadium element, delivers better high‑temperature creep resistance, applied for higher‑temperature boiler reheater. 15CrMoG is widely used for superheater and general high‑temperature steam pipe.

What is your MOQ for high pressure alloy pipe?

MOQ is 5 tons. Mixed different sizes can be negotiated.

Can we get cut‑to‑length service?

Yes, we can cut pipe into required fixed length as customer request.

What payment terms can you accept?

T/T and L/C at sight are acceptable.

Can you produce special shaped alloy pipe for boiler equipment?

Yes. Square, rectangular and special profiles can be customized based on engineering drawings.

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15CrMoG 12Cr1MoVG GB5310 High Pressure Alloy Steel Pipe | Boiler Heat Resistant Alloy Pipe