JIS G4105 Alloy Steels Scm 421 Round Bar

• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Hot Rolled
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Surface Treatment: Coated
• Alloy: Alloy
• Model NO.: EL-RB
• Special Use: Mold Steel
• Length: 1-12m
• Certificate: ISO
• Delivery Time: 15-30days After Down Payment
• Standard or Not: Standard
• Secondary or Not: Non Secondary
• Price Term: Fob,CIF,CNF
• Payment: L/C,T/T
• Surface: Peeling, Turning, Polishing
• MOQ: as Requested
• Transport Package: in Bundle or as Requested
• Specification: 10mm-900mm
• Trademark: Kingmetal
• Origin: China
• HS Code: 72166900
• Production Capacity: 500000 Tons/ Month

Product Description

Size:10mm-900mm

Standard:ASTM,AISI,JIS,GB,EN,DIN,ASME,BS,SUS,etc.

Surface Treatment: painting,plating,polishing,black oxide,transparent anti-rust oil

Heat treatment: Normalized / Annealed / Quenched / tempered


Processing
 
Electric arc furnace melting→refining furnace→vacuum treatment furnace→
→cast ingot→steel ingot anneal→ heating → high-speed forging, refining
forging→annel,retarded cooling,air cooling→quenching and tempering
treatment→finishing operation→test→finished products
 
Application:
Foodstuff, gas, metallurgy, biology, electron, chemical, petroleum, boilers, nuclear, energy, construction field, ships building industry, war and electricity industry, boiler heat exchanger, machiner and hardware fields and medical equipment, fertilizer, etc.  
 

Symbol of Class	Chemical Composition %
	C	Si	Mn	P Max.	S Max.	Cr	Mo
SCM 415	0.130.18	0.150.35	0.600.85	0.030	0.030	0.901.20	0.150.30
SCM 418	0.160.21	0.150.35	0.600.85	0.030	0.030	0.901.20	0.150.30
SCM 420	0.180.23	0.150.35	0.600.85	0.030	0.030	0.901.20	0.150.30
SCM 421	0.170.23	0.150.35	0.701.00	0.030	0.030	0.901.20	0.150.30
SCM 430	0.280.33	0.150.35	0.600.85	0.030	0.030	1.001.50	0.150.30
SCM 432	0.270.37	0.150.35	0.300.60	0.030	0.030	0.901.20	0.150.30
SCM 435	0.330.38	0.150.35	0.600.85	0.030	0.030	0.901.20	0.150.30
SCM 440	0.380.43	0.150.35	0.600.85	0.030	0.030	0.901.20	0.150.30
SCM 445	0.430.48	0.150.35	0.600.85	0.030	0.030	0.901.20	0.150.30
SCM 822	0.200.25	0.150.35	0.600.85	0.030	0.030	0.901.20	0.150.30
Note : As impurities, Ni and Cu shall not exceed 0.25% and 0.30% respectively for all grades.

Application:

Carbon Steel	Mold bottom Plastic mold Construction machinery parts Automobile parts Security grills Screens Construction
Bearing Steel	Aerospace Navigation Nuclear energy Chemical industry Electronic information Petrochemical Instrument and meter Transportation
Cr-Mo Steel	Mechanism & Fasteners gear    Stressed components for vehicles  Engines and machines  Parts of larger cross-section
Gear Steel	All kinds of gears Statically and dynamically stressed component for vehicles Engines and machine Larger cross-section parts Crankshafts