Hastelloy G-30 is a high chromium nickel-base alloy which has superior corrosion resistance over most other nickel and iron-base alloys in commercial phosphoric acid as well as many complex environments containing highly oxidizing acids such as nitric/hydrochloric, nitric/hydrofluoric and sulfuric acids. It resists the formation of grain boundary precipitates in the heat-affected zone, making it suitable for use in most chemical process environments in the as-welded condition.
Chinese designation: 哈氏合金 G-30
| Element | Min % | Max % |
|---|---|---|
| Cr | 28 | 31.5 |
| Fe | 13 | 17 |
| Mo | 4 | 6 |
| Co | — | 5 |
| W | 1.5 | 4 |
| Cu | 1 | 2.4 |
| Mn | — | 1.5 |
| Nb+Ta | 0.3 | 1.5 |
| Si | — | 0.8 |
| P | — | 0.04 |
| C | — | 0.03 |
| S | — | 0.02 |
| Ni | balance | — |
Chemical composition per the grade specification. Values are nominal; the mill test report is issued with every order, traceable to the heat number.
| Product form | ASTM / EN specification |
|---|---|
| Rod | B 581 |
| Plate, sheet and strip | B 582 |
| Seamless pipe and tube | B 622 |
| Welded pipe | B 619, B 775 |
| Welded tube | B 626, B 751 |
| Welding fitting | B 366 |
| Forged or rolled pipe flange and forged fitting | B 462 |
| Billet and bar for reforging | B 472 |
Hastelloy G-30 (UNS N06030, DIN W. Nr. 2.4603) is a nickel-based alloys grade. Hastelloy G-30 is a high chromium nickel-base alloy which has superior corrosion resistance over most other nickel and iron-base alloys in commercial phosphoric acid as well as many complex environments containing highly oxidizing acids such as nitric/hydrochloric, nitric/hydrofluoric and sulfuric acids. It resists the formation of grain boundary precipitates in the heat-affected zone, making it suitable for use in m
ROBAN supplies Hastelloy G-30 as rod, plate, sheet and strip, seamless pipe and tube, welded pipe, welded tube, with custom dimensions to your drawing.
Yes. Every order ships with a mill test report covering the actual heat analysis. 3.2 documentation is available where the contract requires it.
Stock items ship within 3 to 7 working days. Cut-to-size and forged items typically run 15 to 30 working days depending on quantity and specification. Send us your drawing or enquiry for a firm lead time.
Drawing, grade, dimensions, quantity and delivery date — we price from those.
Request a Quote →Heat analysis report issued with every order at no extra charge.
Quality documentation →Shearing, sawing and machining to the tolerances on your drawing.
Capabilities →Buyers often substitute within a family once service conditions, corrosion behaviour or fabrication method narrow the choice.
