Product Description
| Product Name |
Nickel alloy steel Round Bar |
| Grade |
N08031 |
| Standards |
JIS, AISI, ASTM, GB, DIN, EN |
| Diameter |
10mm-200mm |
| Length |
3000mm-8000mm,or customize |
| Surface |
AP,BA,2B,or others |
| Application |
petroleum,foodstuff,chemical industry,construction, electric power,nuclear,energy,machinery,biotechnology,paper
making,shipbuilding,boiler fields. |
| Quality and test |
Radiography Test Report,PMI,Heat Treatment Charts,Manufacturer Test Certificate,etc. |
| Packing |
Ply Wooden Boxes,PE Fabric Bundles,Standard seaworthy export packing,Plastic Bags, or as required |
| Delivery time |
20-75 days |
Product Parameters
Chemical Composition
| Grade |
Ni |
Cr |
C |
Mn |
Si |
Cu |
Mo |
N |
P |
S |
Fe |
| UNS N08031 |
30.00-32.00 |
26.00-28.00 |
≤0.015 |
≤2.00 |
≤0.030 |
1.00-1.40 |
6.00-7.00 |
0.15-0.25 |
≤0.020 |
≤0.010 |
Bal |
Mechanical Properties
| Grade |
Tensile Strength |
Yield Strength |
Elongation (%) |
| N08031 |
≥650 |
≥276 |
≥40 |
Alloy 31 is a nickel, chromium and molybdenum stainless steel with nitrogen and copper additions. It combines moderate tensile strength and high ductility with excellent corrosion resistance in sulfuric acid, reducing and oxidizing media and has strong resistance to corrosion and erosion corrosion in phosphoric environment.
Typically the alloy has PREN of ≥ 48, which ensure that the resistance to pitting corrosion is high.
Alloy 31 has excellent resistance to localized corrosion in halide media, both pitting and crevice corrosion. It also provides:
• Outstanding resistance to sulfuric acid.
• Excellent resistance to phosphoric acid.
• Excellent resistance to chlorine dioxide media in the pulp and paper industry.
• Excellent resistance to both oxidizing and reducing media.
• Good resistance to stress corrosion cracking.
• Excellent resistance to general and localized corrosion in Chloridoxid bleaching plants in paper production
• Certification to ISO 15156/MR 0175 to level VI for sour gas applications in the oil and gas industry
• Excellent corrosion resistance in alkaline and acid halide media
• Approval for pressure vessels with operating temperatures from -196 to 550C
• Good processability and weldability
Company Profile
FAQ
1.Are you a factory or a trading company?
We are a company with two mill and one warehouse,produce Stainless Steel/(Super)Duplex Steel/ Nickel Alloy seamless tube&pipes.
But we also can provide welded stainless steel pipes and pipe fittings, coils, sheets, bar, plates etc.
2.Do you have any certificate?
We have approvals of ISO9001:2015,ISO14001:2015,ISO45001:2018, BV Ocean& Offshore Ship Classification Societies, GOST, TUV, PED AD2000 etc.
And will get ABS/NORSOK/DNV/CU-TR(EAC) soon.
3.What is your delivery time?
It mainly depends on your demanded volume and material grade. The time of delivery is usually around0.5- 1 month(1*40HT as usual).
We can send it out in 5 days if it has stock.
4.What is your payment terms?
Our usual payment term is 30% deposit and the rest against B/L. L/C is also acceptable. And the shipping terms are EXW,FOB, CFR,CIF.Whichever you like.
5.How can you guarantee the quality of my goods?
All material are 100% PMI tested and measured before shipping. We also accept third part inspection andEN10204.3.1B Mill test certificate for all materials.
6.How do you make our business long-term and good relationship?
1.We keep good quality and competitive price to ensure our customers benefit.
2. We respect every customer and we sincerely do business with them, sustain our service level before and after every deal.
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