A4 Chemical composition
| % | Cr | Mo | C | Mn | Si | S | P | N |
| A4 | Min. | 16.5 | 1.8 |
| 12 |
|
|
| 0.2 |
| Max. | 18.5 | 2.2 | 0.08 | 15 | 0.7 | 0.02 | 0.045 | 0.3 |
A4 minimum mechanical properties in the room temperature
| Alloy status | Tensile strength
Rm N/mm² | Yield strength
RP0.2 N/mm² | Elongation
A5 % | Brinell hardness HB |
| Solution treatment | 480 | 255 | 25 | - |
A4 Characteristic as below:
The corossion resistance of A4 duplex stainless steel is better than austenite stainless steel with Mo composition 2%~3%.
A4 Application field :
Applied for equipment of carbamide manufacturing.
We can manufacture all kinds of Forging Ring for various use. The details are as follows:
1, Forging Ring in Pressure Vessels and Heat exchanger
2, Forging Ring In Onshore/ Offshore
3, Forging Ring In POWER PLANTS AND TURBINES
4, Forging Ring in MACHINE CONSTRUCTION & VEHICLES
5, Forging Ring in SHIPBUILDING & AVIATION
6, Forging Ring in WIND ENERGY
Price is competitive and quality is superior
Specifications
1)ISO9001:2008
2) Material: 16Mn-65Mn,H13,18CrNiMo7-6,42CrMo4
Fenghuang Machinery Co is specialized in manufacturing of forgings for valves, oil-gasfield products and other mechanical parts, we are located in Jiangyin City which is a short two hours driving from Shanghai Port.
With complete manufacturing facilities and experienced technical staff, we are capable of supplying various forging materials, covering AISI, ASTM, EN and other global standards. Together with our advanced QC instruments and system, we ensure every product complies with our customer's technical requirements. After decades of accumulated experience, in addition to ordinary carbon steel, alloy steel, stainless steel, corrosion-resistant alloy, Heat-resistant alloy, Precision alloy and tool steel.
We take pride in both our quality and delivery reliability and through our knowledgeable staff we are always looking to improve our service and product offerings to valued customers.
