Product

AS2074 H7A Casting: High-Strength Stainless Steel Components

AS2074 H7A Casting

Choosing a reliable AS2074 H7A Casting is essential for projects requiring a balance of high hardness and excellent corrosion resistance. This specific grade of precipitation-hardening steel is widely utilized in heavy-duty engineering due to its remarkable mechanical properties. By selecting the AS2074 H7A variant, manufacturers ensure that components can withstand extreme stress without compromising structural integrity.

AS2074 H7A Casting -Casting Methods

To achieve the tightest tolerances, we employ advanced Casting Methods: Investment casting. This process ensures that every AS 2074-H7A part features a superior surface finish and intricate geometric accuracy. Unlike standard sand casting, our precision techniques minimize the need for secondary machining, saving time and reducing material waste during production.

Material Equivalence and Global Standards

Understanding the Equivalent Standards of ISO, DIN, ASTM, AISI, GB is vital for international procurement. The AS 2074 Grade H7A is the Australian equivalent to the globally recognized 17-4PH Stainless Steel. This means it shares similar chemical compositions and heat treatment responses with ASTM A747 Grade CB7Cu-1, making it a versatile choice for global supply chains.

Grade	Material Category	Alloy Highlights	Yield Strength (min)	Typical Equivalence
H5	Austenitic Cr-Ni	~18% Cr, 8% Ni	205 MPa	ASTM A351 CF8 (Cast 304)
H6	Austenitic Cr-Ni-Mo	~18% Cr, 10% Ni, 2% Mo	205 MPa	ASTM A351 CF8M (Cast 316)
H7	Precipitation Hardening	~16% Cr, 4% Ni, 3% Cu	550–1000+ MPa	ASTM A747 CB7Cu‑1 (Cast 17‑4PH)

Key Benefits of AS 2074-H7A Casting

The primary advantage of AS2074 H7A lies in its “precipitation hardening” capability. Through specific aging processes, the steel reaches a high tensile strength while remaining resistant to scaling and oxidation. This makes it the preferred material for pump impellers, valve bodies, and specialized mining equipment operating in abrasive or corrosive environments.

Why Choose Our AS2074 H7A Solutions?

Leesh Holdings specializes in delivering certified AS2074 H7A Casting products that meet rigorous Australian standards. By integrating 17-4PH Stainless Steel properties into our casting workflow, we provide parts that offer long-term durability. Whether you need a small batch or high-volume production, our technical team ensures every pour meets your exact specifications.

Leesh Holdings: Professional Investment Casting Service for Custom Investment Casting Services

Leesh Holdings provides top-tier investment casting service (lost wax casting) for global industrial clients, delivering high-precision, complex metal components with consistent quality, cost efficiency, and reliable lead times.

With years of manufacturing experience and advanced production facilities, we specialize in custom investment casting solutions for aerospace, automotive, medical, machinery, marine, and other high-demand industries.

Leesh Investment Casting Process

Core Advantages of Our Investment Casting Service

✅ One Stop Solution

Full service from tooling manufacturing to finish machining, providing you with total solutions.

✅ Global Service

Professional English-speaking team with at least 5 years of global customer service experience.

✅ Experienced Engineers

Mature engineer training system, knowledgeable, energetic and enthusiastic technical support.

✅ Well-Maintained Equipment

Strict equipment maintenance ensures stable and reliable product quality and consistent performance.

✅ Cost & Production Efficiency

Low rejection rate and optimized process bring the best balance between cost and benefit for global customers.

✅ Professional Inspection & Testing

Complete quality inspection including material, dimension, NDT, scanning and strict testing for every product.

Technical Specifications & Parameters

Manufacturing Method	OEM Investment Casting Services (Lost Wax Casting)
Material Standard	GB, ANSI, BS, DIN, JIS, ASTM, ASME, AISI, etc
Main Materials	Carbon steel, Low carbon steel, Middle carbon steel, G35, G45, WCB, WCA, WCC, ISO 340-550, etc. Alloy Carbon steel: G25CrMo4, Heat Resistant Steel, etc. Stainless Steel: SUS 304, 304L, 316, 316L, CF8, CF8M, G-X7CrNiNb1189, AS2074 or according to customer specific requirement. Copper, Brass, Bronze
Weight Range	0.01 kgs to 100 kgs
Cast Hole Min. Dia.	Ø2mm
General Casting Tolerance	CT4-CT7
Design Software	UG, Pro-E, Inventor
Dwg Format	STP, STEP, IGS, STP, X_T, DXF, DWG, Pro/E, PDF, SLDPRT
Mould Manufacturing	Yes
Casting Simulation	Yes
Ultimate machining tolerance	0.005mm
Quality Control	RT, UT, MT, PT, CMM, SCAN, Chemical and Mechanical Property Testing, Spectrometer, etc
Finish Roughness	Ra1.6-Ra3.2 according to customer requirement
Logo/ID	Silk-screening, Laser Marking, Engrave, Painting
Heat Treatment	Normalization, Annealing, Quenching and Tempering, Case Hardening, Nitriding, Carbon Nitriding, Induction Quenching, etc
Surface Treatment	Shot/sand blast, Polishing, Surface Passivation, Painting, Anodizing, Powder coating, ED-Coating, Chrome Plating, zinc-plate, Dacromat coating, Finish Painting, hot-dip galvanizing, etc

Our Investment Casting Services Scope

Custom investment casting for metal parts (0.01kg – 100kg)
Precision CNC machining & secondary processing
Surface treatment: polishing, sandblasting, painting, passivation, plating
Non-destructive testing (NDT), dimensional inspection & material certification
Prototype & mass production solutions

Applicable Industries

Aerospace
Automotive
Medical Equipment
Industrial Machinery
Marine & Shipbuilding
Valve & Pump Parts
Construction Hardware

Quality Assurance

Leesh Holdings implements strict quality control systems certified by ISO 9001. Every casting part undergoes full inspection to ensure dimensional accuracy, material consistency, and performance stability for your critical applications.

Send your 2D/3D drawings to get a fast and professional custom solution!

Product

AS2074 H7A Casting: High-Strength Stainless Steel Components