FH® 1.4849 Heat Treatment Baskets For Multi-purpose Furnace, With Polished Round

Product Specification

FH® Heat Treatment Baskets & Fixtures | Engineered for Multi-Chamber Furnaces (Sealed Quench / Carburizing)

Key Benefits

• Multi-Chamber Furnace Optimized
  Designed for sealed quench furnace cycles – heating to 930°C, carburizing atmosphere, followed by oil or gas quench.
• Anti-Carburization Performance
  High-silicon alloys and pre-oxidation treatment reduce carbon penetration – extends service life in rich carburizing atmospheres.
• Thermal Shock Resistant
  Engineered to withstand repeated heating (850–950°C) and oil quenching (60–80°C) without cracking or distortion.
• Stable Stacking Design
  Precision stacking feet and flat top surfaces – secure stacking of multiple baskets per furnace load.
• Automatic Handling Compatible
  Designed for robot or manipulator loading – consistent pick-up points, no snagging edges.
• Custom Configurations
  Any size, grid pattern, or reinforcement – matched to your furnace retort and part geometry.

Technical Specifications

Why Choose FH® Multi-Chamber Furnace Baskets?
1. Designed for Sealed Quench Furnace Demands

2. Material Selection Guide

3. Design Features That Matter

4. Thermal Shock Resistance
Multi-chamber furnace baskets experience extreme thermal cycles:

• 930°C heating (carburizing zone)
• Rapid transfer to quench chamber
• Oil quench at 60–80°C (temperature drop of ~850°C in seconds)

FH® heat treatment baskets are stress-relieved after welding and use ductile alloys to survive these cycles without cracking.

Applications
Processes:

• Gas carburizing
• Carbonitriding
• Hardening / quenching
• Tempering (with separate fixture)

Parts:

• Gears, shafts, rings
• Bearings, races
• Fasteners, bolts, nuts
• Automotive transmission components
• Small to medium-sized parts requiring case hardening

Furnace Types:

• Sealed quench furnace (SQF)
• Multi-chamber carburizing line
• Integral quench furnace (IQF)

Genuine Photos of FH® Heat Treatment Baskets

Ordering Process
Provide:

• Furnace retort dimensions (length, width, height)
• Part size, weight per basket, and stacking height
• Operating temperature and atmosphere
• Quench type (oil or gas)
• Handling method (manual or automatic)

FH® proposes:

• Material grade recommendation
• Grid pattern and reinforcement design
• Stacking feet configuration
• CAD drawing for approval
• Production: 10–20 working days

Delivery includes:

• MTC
• Dimensional inspection report
• Stacking diagram
• Care and maintenance guide

FAQ:

Q1: How long will an FH® basket last in a carburizing multi-chamber furnace?
A: Typical service life: 310S – 200–300 cycles; 1.4849 – 400–600 cycles. Life depends on temperature, load weight, and maintenance. Regular cleaning (every 50–80 cycles) and avoiding overloading extend life significantly.

Q2: What material do you recommend for a 930°C carburizing furnace with oil quench?
A: For 930°C with oil quench, we recommend 1.4849. It offers the best combination of creep strength, anti-carburization, and thermal shock resistance. 310S is acceptable for lower loads or shorter cycles but will have shorter life.

Q3: How do I prevent the basket from cracking due to thermal shock?
A: FH® baskets are designed with thermal shock in mind: stress-relieved welds, rounded corners, and ductile alloys. To maximize life, avoid quenching the basket empty (load should cover the basket surface) and ensure even part distribution.

Q4: Can your baskets be used with automatic manipulators?
A: Yes. We design consistent pick-up points, smooth edges, and stacking features that work with robotic or manipulator loading. Provide your handling equipment specifications for optimized design.

Q5: What is your warranty?
A: 12 months against manufacturing defects (weld cracks, material flaws). Normal wear, creep, carburization, and thermal fatigue are not covered – but FH® will recommend the right material for your conditions.