10, Bldg, Land Mark,
Gol Deval Temple, Shop no. 113/117,
3rd Kumbharwada,
Mumbai, Maharashtra - 400004
A practical buying guide for fabricators, OEMs, and project buyers: where 4130 chromoly tubing can be sourced, what to check before you order, and how to get a complete quotation from Siddhgiri Overseas.
4130 Chromoly Tubing is a chromium-molybdenum low alloy steel tube used in aerospace, motorsport, automotive, hydraulic, and industrial fabrication work. Because it is a specified engineering material rather than a general-purpose steel, where you buy it matters: the supplier decides the size range you can access, the documentation you receive, and how reliably the material reaches your workshop.
Siddhgiri Overseas is a Mumbai-based supplier and exporter of 4130 Chromoly Tubing. We supply seamless and welded tube to ASTM A519 and related specifications, with Mill Test Certificates, cut-to-length preparation, and export dispatch support for buyers in India and overseas.
This page explains the main buying options, the checks that separate a dependable source from a risky one, and the details to include in your enquiry so the first quotation you receive is accurate.
Best suited to project and production quantities. Wider size range, mill certification, cutting services, and export documentation from one source.
Convenient for small, urgent requirements. Size range in 4130 is often limited, and certification should be confirmed before purchase.
Useful for short lengths and prototypes. Check the stated standard, condition, and whether a traceable certificate is supplied with the material.
Whichever route you choose, confirm the following points with the supplier before placing an order. They determine whether the tubing you receive matches the engineering requirement.
| Check | Why It Matters |
|---|---|
| Grade and Standard | Confirm the material is AISI 4130 supplied to ASTM A519 or the standard named in your drawing. |
| Manufacturing Type | Seamless and welded tube are not interchangeable in every application. State which one you need. |
| Supply Condition | Annealed, normalized, and cold drawn conditions have different mechanical properties. |
| Dimensions and Tolerance | Outside diameter, wall thickness, and length tolerance affect fit-up, bending, and welding. |
| Certification | An EN 10204 3.1 Mill Test Certificate links the tube to its heat number and chemical analysis. |
| Traceability | Heat number marking allows the material to be verified at receiving inspection. |
| Packing and Delivery | Proper bundling and end protection prevent transit damage, particularly on thin-wall tube. |
| Specification | Details |
|---|---|
| Material Grade | AISI 4130 Chromium Molybdenum Alloy Steel |
| Standards | ASTM A519, ASTM A29 and related specifications |
| Manufacturing Types | Seamless and welded tubing |
| Supply Condition | Annealed, normalized, and cold drawn options |
| Services | Cut-to-length supply and mixed-size orders |
| Documentation | MTC EN 10204 3.1 and optional third-party inspection |
For standard sizes and wall thicknesses, refer to the Chromoly Tubing Size Chart. For material data, see 4130 Chromoly Properties.
Share OD, wall thickness, length, quantity, condition, and the standard you need.
We confirm availability, cutting options, documentation, and delivery terms in one quote.
Approve the quotation and specification so material can be allocated and prepared.
Material is checked against the order, with third-party inspection arranged when required.
Tubes are bundled, protected, and marked for domestic transport or export shipment.
Goods are dispatched with the Mill Test Certificate and shipping documents.
A complete enquiry avoids back-and-forth and gets you an accurate price faster. Include as many of the following as you can:
Siddhgiri Overseas supplies buyers in India and export markets. If you are sourcing for a specific region, these pages cover local supply details:
4130 chromoly tubing can be bought from a specialist stockist or exporter, a local metal distributor, or an online metal retailer. For project and production quantities, buying from a specialist supplier such as Siddhgiri Overseas gives access to a wider size range, mill test certificates, and cut-to-length supply.
Send the outside diameter, wall thickness, length or total quantity, required condition, applicable standard, certification requirement, and delivery location.
Yes. Mixed sizes and custom cut lengths can be combined in a single order, subject to stock and production planning.
Yes. Material is supplied with an EN 10204 3.1 Mill Test Certificate, and third-party inspection can be arranged on request.
Yes. Siddhgiri Overseas is based in Mumbai and supports export packing, documentation, and dispatch for international shipments.
Send your size list through the Contact Us page, call +91 96194 06392, or email sales@chromolytubing.com. For supply specifications and a quotation form, see Buy 4130 Chromoly Tubing.
Explore supplier pages, pricing intent pages, technical references, and region-focused availability.