S131
2026-06-04 14:39:17   Origin：   Remark：0 Click：

TECHNICAL DATA SHEET - BS S131

Material type: 13.0Ni - 3.5Cr - 5.0Mn - 0.6C alloy steel
HS code for Customs: 72284000 / 7228 5000
Technical specifications:- BS EN 3890-2002, BS EN 2344-2001, BS EN 3146-2001
Typical chemical compositions (mass weight - %)
Carbon, C (％): 0.55 ~ 0.70
Silicon, Si (％): 0.20 ~ 0.50
Manganese, Mn (％): 3.50 ~ 5.50
Phosphorus, P (％): ≤ 0.035
Sulfur, S (％): ≤ 0.025
Chromium, Cr (％): 3.00 ～ 4.00
Nickel, Ni (％): 11.0 ～ 14.0
Molybdenum, Mo (％): ≤ 0.50
Niobium, Nb/Ti (%): - 
Other elements (％): tungsten ≤ 1.00, vanadium ≤ 0.25

MECHANICAL PROPERTIES UNDER ROOM TEMP.
Heat treatment condition: 1040 ℃ solution annealed
Tensile strength, Rm ≥ MPa: 620
Yield strength, Rp0.2 ≥ MPa: 300
Elongation, A5 ≥ (%): 35.0
Impact strength, AKU ≥ J:  -
Hardness HBS:  -
Condition: work hardened
Tensile strength, Rm ≥ MPa:  950
Yield strength, Rp0.2 ≥ MPa: 740
Elongation, A5 ≥ (%): 30
Impact strength, AKv ≥ J:    -
Hardness HBS:  -

PROFILE & DIMENSIONS
Round bar / disc (diameter): 6.0 ~ 910 mm
Square bar / flat bar: 10 ~ 600 mm
Length: random length or based on the customer's special requirement.

Heavy/middle plate via hot rolled: T6 ~ 300 X W15 ~ 1000 X L1000 ~ 6000 mm
Sheet steel via cold rolled: T0.5 ~ 6 X W20 ~ 1000 X L1000 ~ 2000 mm
Steel strip via cold rolled: T0.5 ~ 3.0 X W5 ~ 200 X L (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.

TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.