Cr-Mo Low Alloy Heat Resistant Steel Plate

Superior high-temperature creep strength, stable mechanical performance under long-term heat & pressure.
Outstanding hydrogen embrittlement & hydrogen corrosion resistance for hydrogenation industrial environments.
Complete global standard grades, compatible with Chinese, American & European engineering specifications.
Wide thickness & size range, support customized fixed-length cutting and special processing.
Good welding & forming property, convenient for pressure vessel integral fabrication.

Product Overview

Cr-Mo Low Alloy Heat Resistant Steel Plate is a chromium-molybdenum alloyed pressure-bearing steel designed for high-temperature, high-pressure, hydrogen-rich, and corrosive industrial environments. It is manufactured according to GB/T713, GB/T150, ASTM A387, EN and DIN 17175 standards, with grade systems covering Chinese, American and European engineering requirements.

The product includes 15CrMo, 12Cr1MoV, 16Mo3, ASTM/ASME A387 Gr11, Gr12, Gr22, Gr91 (P91), Gr92 (P92) and European grades such as 13CrMo4-5, 16Mo3 and 10CrMo9-10. ASTM grades are available in CL1 and CL2 quality classes, providing options for different pressure-bearing applications.

With thicknesses from 6mm to 250mm, widths of 1500–4100mm, and standard lengths of 6–12 m, the plate can also be supplied with customized fixed lengths and irregular blanking for non-standard components. Upon specific tempering requirements, thickness can be extended to 300mm.

The combined effect of chromium and molybdenum provides high-temperature creep resistance, oxidation resistance and hydrogen corrosion resistance, while maintaining good welding performance and toughness after high-temperature service. It is used for boiler drums, header boxes, heat exchanger tube sheets, reactor cylinders, hydrogenation equipment, ammonia synthesis converters and energy-storage heat exchangers.

Cr-Mo Low Alloy Heat Resistant Steel Plate

Chemical & Mechanical Property Snapshot

Grade	C Max (%)	Si (%)	Mn (%)	Cr (%)	Mo (%)	P Max (%)	S Max (%)	Yield Strength Rp0.2 (MPa, Min)	Tensile Strength Rm (MPa)	Elongation A (%) Min
15CrMo	0.18	0.17–0.37	0.40–0.70	0.80–1.10	0.40–0.55	0.030	0.030	295	440–640	21
12Cr1MoV	0.15	0.17–0.37	0.40–0.70	0.90–1.20	0.25–0.35	0.030	0.030	245	470–640	21
16Mo3	0.20	≤0.50	0.90–1.40	≤0.30	0.25–0.35	0.025	0.020	280	440–570	22
A387 Gr11	0.17	0.50–0.80	0.40–0.65	1.00–1.50	0.45–0.65	0.035	0.035	275	415–585	22
A387 Gr12	0.17	0.50–0.80	0.40–0.65	0.80–1.25	0.45–0.65	0.035	0.035	275	415–585	22
A387 Gr22	0.15	≤0.50	0.30–0.60	2.00–2.50	0.90–1.10	0.035	0.035	310	515–690	20
A387 Gr91 (P91)	0.12	0.20–0.50	0.30–0.60	8.00–9.50	0.85–1.05	0.020	0.010	415	585–760	18
A387 Gr92 (P92)	0.15	0.20–0.50	0.30–0.60	8.50–9.50	0.90–1.10	0.020	0.010	440	620–820	16
13CrMo4-5 (1.7335)	0.17	≤0.40	0.40–0.70	0.70–1.15	0.45–0.65	0.025	0.020	290	440–590	20
10CrMo9-10 (1.7380)	0.17	≤0.50	0.40–0.80	2.00–2.50	0.90–1.10	0.025	0.020	310	510–660	18

Detailed Technical Specifications

Specification Category	Details
Chinese Standards	GB/T713-2014, GB/T150, GB/T12228, GB/T3274
American Standards	ASTM A387, ASTM A387M-25, ASME SA-387, ASTM A20
European Standards	EN 10028-2
DIN Standard	DIN 17175
Chinese Grades	15CrMo, 12Cr1MoV, 16Mo3
ASTM / ASME Grades	A387 Gr11 CL1/CL2, A387 Gr12 CL1/CL2, A387 Gr22 CL1/CL2, A387 Gr91 (P91), A387 Gr92 (P92)
EN Grades	13CrMo4-5 (1.7335), 16Mo3 (1.5415), 10CrMo9-10 (1.7380), 12CrMo91
Thickness	6–250 mm; up to 300 mm upon specific tempering request
Width	1500, 1800, 2000, 2200, 2500, 3800, 4100 mm
Standard Length	6000, 8000, 10000, 12000 mm
Maximum Customized Fixed Length	Up to 18800 mm
Processing	Fixed-length cutting and irregular blanking available
Inspection Documents	Third-party inspection reports and Mill Test Certificates (MTC)
MOQ	5 Ton
Payment Terms	T/T, L/C at Sight
Delivery Time	7–15 working days after receiving deposit
Package	Waterproof paper + plastic film + wooden pallet, seaworthy export packing

Product Comparison Table

Feature	Cr-Mo Low Alloy Heat Resistant Steel Plate	Ordinary Carbon Steel Plate
Alloy System	Chromium-molybdenum alloyed steel	Carbon steel
High-Temperature Service	Designed for high-temperature pressure-bearing conditions	More limited for demanding long-term high-temperature applications
Creep Resistance	High-temperature creep resistance	Not the primary material characteristic
Hydrogen Environment	Hydrogen corrosion resistance	Not specifically designed for hydrogen-rich service
Oxidation Resistance	Enhanced by chromium	Lower alloying-based protection
Pressure Equipment	Suitable for boilers, reactors, heat exchangers and other pressure-bearing components	Application depends on the specific carbon steel grade
Available Standards	GB/T, ASTM/ASME, EN, DIN	Depends on selected carbon steel grade
Typical Application	Thermal power, petrochemical, coal chemical and new energy equipment	General structural and fabrication applications

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Finished Products of Steam Turbine Cylinder Body and Steam Pipeline Header

Power plant boiler Alloy Sheet

High-pressure Heat Exchanger Tube Sheet + Oil and Gas High-pressure storage Tank Workshop

Large-scale Hydrogenation Reactor in the Refinery Alloy Sheet

Large-scale ammonia synthesis tower industry alloy sheet

Methanol pressure vessels, high-temperature cracking equipment

Hydrogen gas high-pressure hydrogen storage tank area

Thermal energy storage high-temperature heat exchange tank of photothermal power station

Assembly of Pressure-bearing components in the wellhead of an oilfield well

Finished products of air compressor air storage tank and boiler air collecting tank

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What is Cr-Mo Low Alloy Heat Resistant Steel Plate?

It is a chromium-molybdenum alloyed pressure-bearing steel designed for high-temperature, high-pressure, hydrogen-rich and corrosive industrial environments.

What grades of Cr-Mo heat resistant steel plate are available?

Available grades include 15CrMo, 12Cr1MoV, 16Mo3, A387 Gr11, Gr12, Gr22, Gr91/P91, Gr92/P92, as well as EN grades including 13CrMo4-5, 16Mo3 and 10CrMo9-10.

What thickness and sizes are available?

Thickness ranges from 6 to 250 mm, with up to 300 mm available upon specific tempering requirements. Widths include 1500–4100 mm, standard lengths are 6–12 m, and customized fixed lengths can reach 18800 mm.

Is Cr-Mo steel plate suitable for hydrogenation equipment?

Yes. Its chromium-molybdenum alloy system provides hydrogen corrosion resistance and is used in petrochemical hydrogenation reactors and related equipment.

Can inspection documents be provided with the steel plate?

Yes. The product documentation states that each batch is supplied with third-party inspection reports and Mill Test Certificates (MTC), supporting international pressure-vessel documentation requirements.

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Cr-Mo Low Alloy Heat Resistant Steel Plate