2S131 Austenitic Type Steel
| Product parameters | |
| Material Category:: | Thermal Expansion Steel |
| Material Technical Standards:: | BS S131 |
| Place of Origin: | P. R. China |
| Terms of Price:: | Ex works, CIF, and CFR |
| Melting Process Route:: | EAF + LF + VD / + ESR, BEF + ESR |
| Min. order quantity Per Batch:: | 2000 KG |
| Certification:: | Commercial Invoice, Packing list, CO, Bill of lading, Origin of Certificate, Form E |
| Customs HS code:: | 72284000 |
| Heat Treatment Practice:: | Solution annealed 1040 ℃, water or air cooled. |
| Ultrasonic Test Standard:: | / GB/T 4162 / EN 10228-3 / EN 10308. |
| Standard Export Packing Way:: | Wooden box, wooden Pallet / tray with free from fumigation. |
| Production Lead Time:: | Within 75 days after 40% downpayment. |
| Company ISO Register No:: | UQ211218R0 |
Description
PRODUCT DESCRIPTION
The alloy is usually produced by AOD / BEF followed by electroslag refining (ESR) / VAR if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black/bright in the annealed condition.
Round bar: 5.5mm to 550mm
Square bar / Flat bar: 10mm to 800mm
MATERIAL CATEGORY - Aerospace "S" Series alloy steel
MATERIAL SPECIFICATIONS - BS S131 - 1977
CHEMICAL COMPOSITION (mass weight %) - Grade S131C & S131D
C (％): 0.55 ~ 0.70, Si (％): 0.20 ~ 0.50, Mn (％): 3.50 ~ 5.50
P (％)≤: 0.035, S (％)≤: 0.025
Cr (％): 3.00 ~ 4.00, Ni (％): 11.0 ~ 14.0, Mo (％): ≤ 0.50
Nb/Ti (%): -, Others (％): W ≤ 1.00, V ≤ 0.25, Fe: balance.
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Condition: solution annealed
Tensile strength σb≥/MPa: 620
Yield strength σs≥/MPa: 300
Elongation δ5≥(%): 40.0
AKU≥/J: 200 min.
Hardness HBS: 187
The alloy is usually produced by AOD / BEF followed by electroslag refining (ESR) / VAR if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black/bright in the annealed condition.
Round bar: 5.5mm to 550mm
Square bar / Flat bar: 10mm to 800mm
MATERIAL CATEGORY - Aerospace "S" Series alloy steel
MATERIAL SPECIFICATIONS - BS S131 - 1977
CHEMICAL COMPOSITION (mass weight %) - Grade S131C & S131D
C (％): 0.55 ~ 0.70, Si (％): 0.20 ~ 0.50, Mn (％): 3.50 ~ 5.50
P (％)≤: 0.035, S (％)≤: 0.025
Cr (％): 3.00 ~ 4.00, Ni (％): 11.0 ~ 14.0, Mo (％): ≤ 0.50
Nb/Ti (%): -, Others (％): W ≤ 1.00, V ≤ 0.25, Fe: balance.
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Condition: solution annealed
Tensile strength σb≥/MPa: 620
Yield strength σs≥/MPa: 300
Elongation δ5≥(%): 40.0
AKU≥/J: 200 min.
Hardness HBS: 187
