• Model NO.：KM-143
• Outer Dimensions：19.05mm~114.3mm
• Wall Thickness：2.0mm ~14 mm
• Length：Max 16000mm
• Loading Port：Chinese Main Port
• Delivery Time：30 Days Ex Mill
• MOQ：5 Metric Tons
• Testing Way：The Third Party Test
• Certificate：ISO API
• Transport Package：in Bundle or Customer′s Requirement
• Specification：ISO TUV PED API
• Trademark：KINGMETAL
• Origin：Made-in-China
• Production Capacity：2000 Tons Per Month

JIS G4053 SNCM 439 PIPE SPECIFICATION

Standard:JIS G 4053JIS G4053 Equivalent material:40CrNiMoA, 4340, 817M40, 816M40Percentage reduction of area JIS G4053:≥55JIS G4053 Impact (J/cm2):≥78JIS G4053 Hardness:≤269HBJIS G4053 Heat treatment specification:850 ºC quenching ,oil cooling; 600 ºC tempering, water cooling, oil cooling.JIS G4053 Delivery condition:By heat treatment (normalizing, annealing and high temperature tempering) or heat treatment delivery, delivery status should be indicated in the contract 

JIS G4053 Steel Grade

Chemical composition (%)

C

Si

Mn

P

S

Ni

Cr

Mo

SNCM439

0.36-0.43

0.15-0.35

0.60-0.90

0.030max

0.030max

1.60-2.00

0.60-1.00

0.15-0.30

 

JIS G4053 Steel grade

Yield Strenght
Mpa (min)

Tensile Strength
Mpa(min)

Elogation
%(min)

SNCM 439

835

980

12

JIS G4053 Equivalent Material Grades

 

• Jis G4053 Scm440
• Jis G4053 Scm435
• Jis G4053 Scm415

• Jis G4053 Scm420
• Jis G4053 Sncm439
• Jis G4053 Steel