Custom X3CrNiMo13-4 (1.4313) Forged Steel PartsMade to Your Specifications
As a leading custom forging manufacturer, Jiangsu Liangyi produces high-quality 1.4313 stainless steel components according to clients' technical drawings and specifications. This martensitic chromium-nickel molybdenum steel (also known as X3CrNiMo13-4) has excellent mechanical performance and corrosion resistance, making it a best choice material for the oil & gas, marine, power generation, and chemical plant.Get Custom Quotation
Available Forged Shapes & ComponentsOEM/ODM Available
We manufacture forged steel components in various custom shapes, strictly according to clients' technical specifications and international standards. Our capabilities include:
Bars & Rods: Round, square, and flat bars.
Seamless Rolled Rings: Highly forged and rolled rings for turbines, pumps, and valves.
Hollow Forgings: Hubs, housing shells, sleeves, and hollow bars.
Blocks & Plates: High quality forged steel discs and blocks.
Custom Machinery Parts: Shafts, spindles, and valve stems for pump and valve.
Global Industrial Applications
With superior corrosion resistance, high durability, and excellent mechanical properties, our X3CrNiMo13-4 forged products are widely used in many critical industrial areas worldwide.
Hydropower & Hydro Turbines
Our 1.4313 forgings are the best choice for hydro power plant spare parts that need to work in wet conditions for a long time. We could supply main parts, like hydro turbine wicket gates, guide vanes, runner discs, and pump parts and so on.
Application Case: We supplied open die forging components (turbine runner discs and wicket gates) for the Zala Hydropower Station’s 500MW impulse water turbine unit. Produced strictly as per EN 10222-5 standards, these parts finally have excellent corrosion resistance and impact toughness.
Nuclear Power
Application Case: We provided reactor coolant pump casing shells and trunnions for a domestic third-generation nuclear power unit. All 1.4313 forged components passed strict testing with full material traceability.
Oil, Gas & Downhole Drilling
For the harsh working conditions of oil gas industry, we supply frac pump parts, wellhead components, blowout preventers, and downhole drilling tools that are finally used in excellent corrosion and high-pressure resistance.
Application Case: For a Middle Eastern oilfield company we produced frac pump fluid end blocks and wellhead spool bodies via 1.4313 open die forgings and QT780 heat treatment. These components have maintained stable performance under high pressure for over 2 years.
Pumps & Compressors
We supply pump seal chambers, compressor rotors, impellers, shafts, and wear rings that require a long lifetime and high reliability.
Application Case: We cooperate with a European chemical pump manufacturer to supply custom pump impellers. Produced strictly as per EN 10272:2007 standards, these X3CrNiMo13-4 forgings greatly improve the service lifetime for chemical pump.
Ball Valve & Check Valve Production
Valve applications require excellent sealing. We produce custom parts for them, including valve balls, bonnets, bodies, stems, and seat rings.
Application Case: For a large petrochemical plant in the US, we provided 1.4313 seamless rolled rings for valve bodies, valve seats that ensure tight sealing and resist corrosion.
Steam & Gas Turbines
High-speed turbine operations need all components with high strength. Our open die forging products include turbine blades, disks, impellers, and guide rings.
Application Case: We provided 1.4313 material forged disks and seamless rolled guide rings (QT900 heat treatment) for a domestic gas turbine manufacturer, final machined parts work very well in high-speed operational requirements and reducing procurement costs for our clients.
Boilers, Heat Exchangers & Pressure Vessels
We manufacture seamless rolled rings, pipes, tube sheets, nozzles, and custom pressure vessel parts that need to work at extreme temperatures and pressures.
Marine And Shipyard
Marine requires high-reliability, corrosion-resistant materials to withstand harsh saltwater environments. Our product range includes marine propeller shafts, valve components, and pump parts designed for long-term stable working in saltwater environments.
X3CrNiMo13-4 (1.4313) Chemical Composition
Below is the detailed chemical composition of the material (values in weight %; according to the EN 10088-3:2005 standard):
Element
Content Range (wt%)
Iron (Fe)
78.5 - 84.2
Chromium (Cr)
12.0 - 14.0
Nickel (Ni)
3.5 - 4.5
Manganese (Mn)
0 - 1.5
Molybdenum (Mo)
0.3 - 0.7
Silicon (Si)
0 - 0.7
Carbon (C)
0 - 0.050
Phosphorus (P)
0 - 0.040
Nitrogen (N)
0 - 0.020
Sulfur (S)
0 - 0.015
Mechanical Properties & Specifications
In order to meet different clients' needs, we provide custom mechanical properties based on various delivery conditions. All properties as per international standards:
Delivery Condition
Tensile Strength (Rm)
Yield Point (Re)
Elongation (A)
Impact Resistance (KV)
Hardness (HBW)
+A (Annealed)
<1100 MPa
-
-
-
<320
+QT650 (Quenched & Tempered)
700 - 850 MPa
>520 MPa
>15%
>70 J
-
+QT780 (Quenched & Tempered)
780 - 980 MPa
>620 MPa
>15%
>70 J
-
+QT900 (Quenched & Tempered)
900 - 1100 MPa
>800 MPa
>12%
>50 J
-
Heat Treatment Processes
To make sure that all our forgings meet production standard of EN 10250-4 and EN 10088-3, we provide the following heat treatment as per clients' needs:
Jiangsu Liangyi is a trusted partner for buyers around the world. Our main strengths include:
20 year production experience: mainly produce 1.4313/X3CrNiMo13-4 forging with advanced equipment.
Custom Service: Different shape and size forging per clients' drawings.
International Quality: 100% according to EN/ASTM/AMS standards, full material traceability, and support for third-party inspections.
One-Stop Service: Our production process from melting and forging steel to heat treating, testing, and machining are all in our workshop.
Global Export Capability: Quick shipping and low prices for shipping around the world.
Frequently Asked Questions
1. Is 1.4313 the same as X3CrNiMo13-4?
Yes, 1.4313 is the European material number (W.Nr.) for the stainless steel grade designated as X3CrNiMo13-4 under the EN production standard of EN 10250-4 and EN 10088-3. Both refer to the same high-strength martensitic chromium-nickel-molybdenum stainless steel.
2. What are the main applications for these forgings?
Due to the fact that this material has excellent corrosion resistance and mechanical strength, it is widely used in hydropower (turbines, pump casings), oil & gas (wellhead components), nuclear power, and marine applications.
3. Can you provide custom heat treatment?
Yes. Normally all our heat treatment is as per +QT650, +QT780, and +QT900 based on production standard of EN 10250-4 and EN 10088-3 and we also could do heat treatments as per different clients' technical manual.
4. What international standards do your forgings meet?
Our X3CrNiMo13-4 forgings are fully produced as per EN 10088-3:2005, EN 10222-5:2000, EN 10272:2007. All material will have chemical composition test, mechanical property test, grain size test according to ASTM E10, A370, E23, E45, and E112 and have a final full testing report.
5. What forging shapes and sizes are available?
We produce round bars, seamless rolled rings, hollow forgings, blocks, plates, and final machining parts (shafts, spindles, valve stems) as per clients' drawings.
6. Do you support third-party inspection and material traceability?
Yes. We provide full material traceability from raw steel melting, forging, heat treatment, machining to final delivery. We also could accept third-party inspections from certified labs (SGS, BV, TÜV, etc.) and can supply full MTRs (Material Test Reports) for each shipment.
7. What is the normal lead time for custom forgings?
Lead time depends on clients' drawing and quantity. Normally, standard open-die forgings take 4–6 weeks, while special parts with custom heat treatment may require 8–12 weeks. When our clients place an order with us, we could give our final confirmed production time.
8. What certifications does Jiangsu Liangyi hold?
Jiangsu Liangyi holds CE, ISO 9001, and PED certifications. Our production facilities and quality management system meet the requirements for supplying components to the nuclear power, oil & gas, and marine sectors globally.
If you’re looking for a trusted manufacturer and supplier for high-quality forged steel parts, Jiangsu Liangyi is your best choice. Send us your drawing or technical manual, and we will provide a competitive price and fast delivery time.
📍 Address: Chengchang Industry Park, Jiangyin City, Jiangsu Province 214400, China
