Ex-stock 16NiCr4 Round bars, Hollow bar Machining
Alloy structural steel is provided with higher yield strength, tensile strength, endurance strength, yield ratio (about 0.85 generally ) enough plasticity and toughness.
| Product parameters | |
| Melting Process Route:: | BEF + ESR / VAR |
| Min. order quantity Per Batch:: | 1300 KG |
| Certification:: | MTR, COC, Certificate of origin, Form A/E, Invoice, Packing list |
| Mode of transportation:: | Sea shipment, Air cargo or international courier |
| Customs HS code:: | 722840 / 722850 |
| Ultrasonic Test Standard:: | ASTM E2375 / MIL-STD- AMS 2154 / SEP 1923 / GB/T 4162 / EN 10228-3 / EN 10308 |
| Standard Export Packing Way:: | Wooden box, pallet / tray free from fumigation |
| Production Lead Time:: | Within 55 days after 40% deposit prepayable |
Description
Alloy structural steel are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Typical applications & usage
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners, Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut, Multidiameter shaft.
Chemical elements (Mass weight - %) - Grade 16NiCr4
C (％): 0.13 ~ 0.19, Si (％): ≤ 0.40, Mn (％): 0.70 ~ 1.00, P (％)≤: 0.035, S (％)≤: 0.035
Cr (％): 0.60 ~ 1.00, Mo (％): -, Ni (％): 0.80 ~ 1.10, Fe (%): balance
Mechanical properties under room temp.
Hot working temperature /℃: 1150～850
Heat treatment temperature /℃|annealing: 610～650
Heat treatment temperature /℃|carburizing: 880～980
Heat treatment temperature /℃|quenching (Center): 850～890
Heat treatment temperature /℃|quenching (Surface): 780~820 oil
Heat treatment temperature /℃|tempering: 150～200
Hardness after annealing HBS≤: 217
Size /mm: Diam.11
After surface hardening |σb/MPa: ≥ 1000
After surface hardening |σs≥/MPa: -
After surface hardening |δ5(％)≥: -
After surface hardening |ψ(％)≥: -
After surface hardening |AKV/J: -
|size /mm: Diam.30
|σb/MPa: ≥ 900
Product shapes and sizes
Round bar / Wire rod (Diameter): 5.5mm to 800mm
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T60 - 400mm X W50 - 1200mm X L1000 - 5000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
