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 certified analysis is issued with every order on EN 10204 3.1 documentation.
| 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 EN 10204 3.1 material certification 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 certificate 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.
