AISI 4140 Alloy Steel sheets Alibaba China steel price per ton

  AISI 4140 Alloy Steel sheets Alibaba China steel price per ton       Product Description   Description: 1.   Steel Product: DIN1.7225 / SAE4140 / GB42CrMo / JIS SCM440    2. Hot rolled or forged condition, annealing or harden, black or milled surface   3. Pre-heat treatment    Annealing heat to 840-860°c, keep 2H, furnace cold, hardness≤217HBS   High temperature tempering : heat to 680-700°c, air cold, hardness ≤217HBS   4. Heat treatment:   Normalization: heating to 840 to 880 ° C, maintenance, furnace cooling to 600 ° C, then in air.   Stress relieving: after rough heat to 500 ° C, maintenance raff. In oven to 400 ° C, then in air.   Hardening: preheating from 600 to 650 ° C austenitizing at 840 to 880 ° C, quenching in oil.   Tempering to 550 - 650 ° Cmaintenance regime again depending on the mechanical properties   5. Hot rolled technology:EAF+LF+VD             Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface   6. Ultrasonic test standard: SPE1921-GR3, CLASS C/C or D/D   7. Production leadtime: 7~15 days     Chemical composition  

C	Mn	Si	Cr	Ni	Cu	P	S
0.17-0.23	0.30-0.60	0.15-0.40	1.25-1.75	3.25-3.75	≤0.25	≤0.030	≤0.030

    Competitive Advantage:   1. Excellent machined ability properties with high S content
  2. Good Toughness properties,
  3. Strong wear resistance
  4. Uniform hardness of material and stablitity
  5. Competitive price
  6. Fast production leadtime
  7.All the material are inspected with 3 times to meet the highly standards            Company Information       RuiYuan Steel Company Introduction     RuiYuan Steel focuses on special steel industry over many years, we has established reliable and stable sourcing with over 40 mills and manufacturers in China,    we can export our products by wholesales and retail sales, it can sale of whole plate or strip,all our products can meet the standards of DIN, AISI, JIS and GB ,   All the material should be inspected the ultrasonic, hardness and others strict inspection process before the shipment!   

Main products
	Hot work tool steel
DIN	1.2344,1.2343,1.2365,1.2581,1.2367,1.2714 etc.
AISI	H13,H11,H10,H21,L6 etc.
JIS	SKD61,SKD6,SKD5,SKT4 etc.
	Cold work tool steel
DIN	1.2601,1.2379,1.2080,1.2363,1.2842,1.2419,1.2510,1.2550,1.2767 etc.
AISI	D2,D3,A2,O2,O1 etc.
JIS	SKD1,SKD11,STD12,SKS31,SKS3 etc.
	Plastic mould steel
DIN	1.2083,1.2311,1.2312,1.2316,1.2738 etc.
AISI	P20, P20+Ni,P20+S,420 etc.
JIS	NAK80
	High speed tool steel
DIN	1.3355,1.3343
AISI	T1,M2
JIS	SKH2,SKH51
	Alloy steel for mechanical
DIN	1.7225,1.6511
AISI	4140,4340
JIS	SCM440