420J2 Martensitic Stainless Steel Strip Quenched & Tempered

Martensitic steel is a type of stainless steel that is known for its strength, corrosion resistance, and durability. These qualities make martensitic steel a good choice for a variety of applications. Martensitic stainless steels are used when corrosion resistance or oxidation resistance are required in combination with either high strength or fatigue strength properties.

ParametersRecommendation
Steel Grade420J2
BrandBaomit
CertificationISO 9001:2015
Hardness48 – 52 HRC
Surface FinishWhite polished, blue polished, yellow polished
EdgesSlit, square or round
Thickness Tolerance+/- 0.005
Width Tolerance+/- 0.10
CamberMax 1mm per 3m
420J2 Martensitic Stainless Steel Strip Quenched & Tempered

 

Our Advantages:

• Excellent fatigue resistance

• Excellent punching and stamping properties

• Precise thickness and width tolerances

• Maximum straightness deviation of 1 mm / 6 m

• Good surface finish

• Consistent, uniform microstructure

 

Chemical Composition % of 420J2 Stainless Steel

CSiMnNiPSCr
0.26-0.40max 1.0max 1.0max 0.60max 0.04max 0.0312.0-14.0

 

Thickness Tolerances

Thickness (mm)Tolerances ± mm
T1T2T3T4T5
0.020 - 0.0400.0040.0030.002--
0.040 - 0.1000.0060.0050.0040.0030.002
0.100 - 0.1250.0070.0050.0040.0030.002
0.125 - 0.1600.0090.0060.0050.0040.003
0.160 - 0.2000.0100.0070.0050.0040.003
0.200 - 0.2500.0110.0080.0060.0040.003
0.250 - 0.4000.0150.0110.0080.0060.004
0.400 - 0.6000.0200.0140.0100.0070.005
0.600 - 0.8000.0230.0170.0120.0080.006
0.800 - 1.0000.0270.0190.0130.0090.007
1.000 - 1.2500.0340.0240.0170.0120.008
1.250 - 1.6000.0390.0280.020--
1.600 - 1.7500.0460.0330.023--

 

Width Tolerances

Thickness (mm)Width (mm)Tolerances ± mm
W1W2W3
≤0.25≤500.100.070.05
50 - 1250.150.110.07
>1250.200.150.10
0.25 - 0.50≤500.150.110.07
50 - 1250.200.150.10
>1250.250.200.15
0.50 - 1.00≤500.200.150.10
50 - 1250.250.200.15
>1250.300.250.15
1.00 - 1.60≤500.200.150.10
50 - 1250.300.250.15
>1250.350.250.20
1.60 - 1.75≤500.300.200.15
50 - 1250.350.300.20
>1250.400.300.20

 

Surface Roughness

Available in white polished, blue polished and yellow.

Thickness (mm)Roughness
Class 1Class 2Class 3
≤0.50Ra≤ 0.30 µm
Rt≤ 3.00 µm
Ra≤0.25 µm
Rt≤ 2.50 µm
Ra≤ 0.20 µm
Rt≤ 2.00 µm
0.50 - 1.00Ra≤ 0.35 µm
Rt≤ 3.50 µm
Ra≤ 0.25 µm
Rt≤ 2.50 µm
Ra≤ 0.20 µm
Rt≤ 2.00 µm
1.00 - 1.75Ra≤ 0.40 µm
Rt≤ 4.00 µm
Ra≤ 0.30 µm
Rt≤ 3.00 µm
Ra≤ 0.30 µm
Rt≤ 3.00 µm

 

Flatness Deviation

Maximum flatness deviation per inch strip width.

Thickness (mm)Flatness Deviation
Class 1Class 2Class 3Class 4
0.02 - 0.10P60P50P40P30
0.10 - 0.25P50P40P30P20
0.25 - 0.50P40P30P20P10
0.50 - 1.75P35P25P15P10

 

Straightness Deviation

Strip Width (mm)Measured Length (3m)
Class 1Class 2Class 3
≤503 mm2 mm1 mm
50 - 1253 mm2 mm1 mm
>1253 mm2 mm1 mm

 

420J2 Martensitic Stainless Steel Quenched & Tempered


Place of Origin: China

Manufacturer: Hubei Baomit Steel Materials Co., Ltd.

Steel Grade: 420J2

Equivalent Grades: X30Cr13

Supply Condition: Hardened and Tempered (H & T)

Applications: Knifes, Valves, Measuring Tapes

Brand: Baomit

Min Order: 1 Ton

Package: Pallet

Delivery Time: 4-5 weeks

Payment Term: L/C, T/T, Western Union

Production Capacity: 300 tons per month

420J2 Martensitic Stainless Steel Strip Quenched & Tempered

"Baomit strip steel stands for precision, quality and high performance. Our material is excellent in terms of comprehensive delivery indicators, such as straightness, flatness, mechanical properties and metallographic uniformity."

 

Need to find a good supplier? Try Baomit!