JIS 37A Rail

JIS 37A rail, weighing 37.2kg per meter, is a heavy-duty track model compliant with JIS E 1101-2001. Made from high-strength steel grades such as 50Mn, 55Q, or U71Mn, the JIS 37A rail performs well in demanding conditions like port crane systems, industrial transport tracks, and regional freight lines.Its key advantage lies in balancing strength and cost, making it suitable for customers who need high load capacity without the expense of ultra-heavy rails.

37kg-37A rail dimensions drawing

Rail Specification

Height: 122.24mmBase Width: 122.24 mm
Head Width: 62.71 mmWeb Thickness:13.49 mm
Length: 6m-24mMaterial: 50Mn/55Q/U71Mn
Weight: 37.2 kg/mStandard: JIS E 1101-2001

If you have special requirements for length or higher strength materials, please contact us for special custom production.

JIS 37A Rail Material Specifications

Produced in accordance with JIS standards, the 37A rail can be manufactured using 50Mn, 55Q, or U71Mn steel, depending on the required mechanical performance. See the table below for detailed chemical and mechanical properties.

55Q-50Mn-U71Mn-material performance

Custom Processing Options for JIS 37kg Rail

Customization services for JIS 37A rails are designed to accommodate complex track layouts and demanding project specifications. Our expert team guarantees precise manufacturing that aligns with your unique requirements, facilitating smooth and reliable installations.

Our Services Include:

Why Choose the JIS 37A Rail

Applications

Used in heavy-duty transport areas such as mining operations, port logistics rails, and large industrial crane tracks.

Advantages

With optional use of heat-treated steel like 50Mn or U71Mn, the rail offers high surface hardness and fatigue resistance under frequent heavy use.

Why Glory Track

Backed by ISO 9001 certification, in-house processing equipment, and global delivery to heavy industry clients in mining and port projects.

FAQ

How does 37A compare to 40N in terms of load capacity?

→ 37A offers slightly less strength than 40N due to its lighter weight and smaller cross-section, though both use similar steel grades. It’s still reliable for medium-duty use.

→ We offer custom-cut lengths and matching fishplates for easy installation and secure rail joints.

→ Yes, we provide welding-ready ends or hole drilling based on your track layout and installation needs.

Let’s help you choose the right JIS 37A rail:

  • Rail use (crane, freight, industrial)
  • Surface treatment or anti-rust needs
  • Section cutting drawings or technical files if available
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