Tianjin Emerson S275JR Mild Ms Steel Sheet Metal Plate Fiber Laser Cutting Parts

We Tianjin Emerson Metal Steel Products co.,ltd is a factory located in Tianjin, China. We are a sheet metal fabrication factory can make all types fabrication parts, Laser Cutting, Bending, Welding, cutting, machining, polishing, we have different machines to make these fabrication works.

We have been making Laser cutting parts for more than 10 years, we can make cnc custom fiber laser cutting parts for all types used in all industries. Our laser cutting machine is 20000 V laser cutting machine, can cut 50mm thick steel plate in all shapes, with good cutting edge and cutting quality.

We can cut different types metal plates, hot rolled, cold rolled, galvanized, stainless steel, aluminum and other types, cut to customized shapes. Can cut laser cutting parts, cutting parts, steel parts, metal parts, sheet metal parts, fiber laser cutting, laser cutting, steel laser cutting, metal laser cutting, sheet metal laser cutting, sheet cutting parts, plate cutting parts.  

S275JR Mild Ms Steel Sheet metal Plate Fiber Laser Cutting Parts chemical composition and technical property is as below:

Product Features

• Mill-Direct Material Sourcing: Our Tianjin facility procures S275JR plate directly from accredited Chinese mills with full EN 10204 3.1 traceability, eliminating intermediary uncertainty.
• Structural-Grade Edge Quality: Nitrogen-assisted fiber laser cutting produces golden, oxide-free edges on S275JR plate, ensuring weld prep is minimal and HAZ hardness remains low for downstream welding.
• Heavy-Plate Capability: Efficient cutting up to 40mm thickness in a single pass, suitable for machinery base plates, anchor plates, and structural connection plates.
• Nesting Optimization: Advanced CAD/CAM nesting software maximizes plate utilization on standard 6m × 2.5m beds, reducing your per-part material cost.
• CE-Compliant Documentation: Full material certificates, inspection reports, and conformity documentation provided for projects requiring CE marking or European technical approval.

FAQ

Q1: What does the "JR" designation mean in S275JR?

A: "JR" indicates that the steel has been impact tested at room temperature (+20°C) and meets a minimum Charpy V-notch energy of 27 Joules. This guarantees a minimum level of toughness for structural applications, distinguishing it from non-impact-tested grades like S235JR in certain specifications.

Q2: Is S275JR laser cutting suitable for load-bearing welded structures?

A: Yes. S275JR is specifically designed for welded construction. Our nitrogen-assisted laser cutting produces minimal heat-affected zone (HAZ) hardening, so cut edges retain excellent weldability using standard GMAW, FCAW, or SMAW processes without preheat in most thicknesses up to 25mm.

Q3: How does S275JR compare to Q355B or S355JR for laser-cut parts?

A: S275JR offers lower yield strength (275 MPa vs. 355 MPa) but superior cold formability and lower cost. For general brackets, base plates, and non-critical framing, S275JR is the economical choice. If your design requires higher strength-to-weight ratio or reduced plate thickness, S355JR or Q355B may be more appropriate.

Q4: Can you supply S275JR plate with shot blasting and primer before laser cutting?

A: We generally laser cut from black or pickled hot rolled plate and apply primer after cutting to ensure coating covers the cut edges. However, if you require pre-primed plate cutting, we can arrange specialized low-fume cutting parameters. Post-cut shot blasting and priming is our standard recommendation.

Q5: What thickness of S275JR plate is most economical for laser cutting?

A: Fiber laser cutting of S275JR is highly efficient in the 3mm to 20mm range, offering the best balance of cutting speed, edge quality, and cost. Above 25mm, cutting speed decreases and gas consumption increases, though quality remains acceptable up to 40mm. We can advise on thickness optimization for your specific design loads.

Q6: Do you provide EN 10204 3.2 certification with third-party inspection?

A: Yes. While EN 10204 3.1 is standard, we can arrange 3.2 certification with inspection witnessed by Lloyd's Register, TÜV, SGS, or Bureau Veritas. Please specify this requirement when requesting quotation, as it requires scheduling during production.

Q7: What is the minimum order quantity for S275JR laser-cut parts?

A: We have no strict MOQ. Single-piece prototypes and small trial orders are accepted. Volume pricing tiers typically begin at 500 kg per part number, with optimal per-kilogram pricing achieved at full-sheet nesting quantities or container-load volumes.

Q8: Can you cut metric and imperial hole patterns, including slotted holes for structural connections?

A: Yes. Our CNC programming accepts both metric and imperial dimensions. We routinely cut standard structural bolt holes (e.g., M20, M24, 3/4", 7/8"), slotted holes for adjustable connections, and countersinks for flush bolt heads. Please specify hole tolerances and edge distances in your drawings.