China Ck75 Spring Steel Strip C75 Blue Polished Steel Strip 60si2mn Spring Steel Sheet, Find details about China 65mn Spring Steel Sheet, 65mn Spring Steel Plate from Ck75 Spring Steel Strip C75 Blue Polished Steel Strip 60si2mn Spring Steel Sheet
Steel Grade | C | Si | Mn | P | S | Cr | Mo | Ni | Ti |
NM300/AR300 | 0.23 | 0.70 | 1.60 | 0.025 | 0.015 | 0.70 | 0.40 | 0.50 | 0.050 |
NM360/AR360 | 0.25 | 0.70 | 1.60 | 0.025 | 0.015 | 0.80 | 0.50 | 0.50 | 0.050 |
NM400/AR400 | 0.30 | 0.70 | 1.60 | 0.025 | 0.010 | 1.00 | 0.50 | 0.70 | 0.050 |
NM450/AR450 | 0.35 | 0.70 | 1.70 | 0.025 | 0.010 | 1.10 | 0.55 | 0.80 | 0.050 |
NM500/AR500 | 0.38 | 0.70 | 1.70 | 0.020 | 0.010 | 1.20 | 0.65 | 1.00 | 0.050 |
NM550/AR550 | 0.38 | 0.70 | 1.70 | 0.020 | 0.010 | 1.20 | 0.70 | 1.00 | 0.050 |
NM600/AR600 | 0.38 | 0.70 | 1.90 | 0.020 | 0.010 | 1.50 | 0.70 | 1.00 | 0.050 |
Steel Grade | Tensile/Mpa | Elongation/% | Hardness/HBW | -20ºC Impact energy Akv/J |
NM300/AR300 | >1000 | >14 | 270-330 | >24 |
NM360/AR360 | >1100 | >12 | 330-390 | >24 |
NM400/AR400 | >1200 | >10 | 370-430 | >24 |
NM450/AR450 | >1250 | >7 | 420-480 | >24 |
NM500/AR500 | - | - | 480-525 | >24 |
NM550/AR550 | - | - | >530 | - |
NM600/AR600 | - | - | >570 | - |