Product categories

More »

Stainless Steel

Stainless Steels are commonly divided into martensite steel, ferrite steel, austenite steel, duplex (ferritic-austenitic) steel and precipitation hardening stainless steel. S17400 ASTM 2205

Heat Resistant Steel

Heat-resistant steel means one type of steel possesses inoxidizability, enough high-temperature strength and excellent heat- resistant quality under high temperature. Heat resistant steel is divided into oxidation resistant steel and refractory steel according to its performance. Further into Austenitic heat-resistant steel, Martensitic heat-resistant steel, Ferritic heat-resistant steel and Pearlitic heat-resistant steel according to its normalizing.


Superalloy is a kind of metal material that operating under high temperature above 600℃ and certain stress condition for a long time. It holds combination properties, such as exellent high temperature strength, antioxidation and heat resist- ance corrosion property, favourable fatigue property, fracture toughness property. which has become irreplaceable key material of hot end parts for military and civilian gas turbine engine.

Valve Steel

Valve steel is a subbranch of heat resistant steels, which is a special material for processing the vent valve & intake valve of combustion engines. This steel material is always under the high temperature 450 ~ 900℃ and also in the operating conditions of 3000~7000kPa explosion pressure.

Tool Steel

High Speed Steel

High speed steel (abbreviated HSS), a sub-branch of tool steels, commonly used in tool bits and cutting tools. HSS is a complex steel with carbon content 0.70~1.65% generally, and alloying elements composition can reach totally 10~25%. HSS is ferrous based alloys of the Fe–C–X multicomponent system where X represents a group of alloying elements comprising mainly Cr, W or Mo, V, and Co.

Hard Alloy

Structural Steel

Structural steel means one type of steel conforms to specific strength and forming property grade that is expressed by interruption elongation during the tensile test. Structural steels are normally used to load bearing, and steel strength is a key design standard in those purposes.

Free Cutting Steel

Spring Steel

Spring steel is specialized in producing the spring and elastic components due to its elasticity under the condition of quenching and tempering. The elasticity of steel depends on its capacity of elastic deformation. This allows objects made of spring steel to return to their original shape despite significant bending or twisting occurs.

Bearing Steel

Bearing steel is a type of steel used in the field of fabricating the ball, pin roller, sleeve for antifriction bearing. and also measuring implements, cold-punching die, lead screw and precision components of diesel engine oil pump. Bearing steel is divided into high-carbon chromium bearing steel, carburizing bearing steel, stainless bearing steel, high temperature bearing steel, medium-carbon bearing steel.

Cast Iron

Cast iron is generic terms of alloy consist of iron, carbon and silicon. Carbon content exceeds the eutectic temperature, can remain the volume in the austenitic solid solution Cast iron is iron-carbon alloy with carbon content up to 2%.

Cast Steel

Welding Material

Welding material is generally called consumable material while welding. Such as welding rod, welding wire, metal powder, soldering flux, gas and so on. With the rapid development of welding industry, mainly divided into argon welding, Co2 welding, oxygen cutting, electric welding.

Titanium Alloy


More »

AISI 414

Stainless Steel Manufacturer- From State-owned Military Industrial Enterprise

Heat Treatment
Heat treatment is only suitable for specific grades of Stainless steel. When heat treating a stainless the hardening temperatures, including rate of heating, cooling and soaking times will vary due to several factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult with the heat treatment provider for whole guidance on heat treatment of stainless steel grades.
We are delighted to help work with you the special heat treatment based on your special requirements.

LonghaiSteel Co.,Ltd  is Manufacturer and Supplier of AISI 414 Martensitic Stainless steel with superior quality and competitive quotation, Located in the Chinese Wellknown Special steel manufacturing industry base and processing center.
If you do not find the Martensitic Stainless steel specification you enquire on website, please also contact our technical development department who may be able to assist you with your Specific enquiry. We will supply you with our sincerity, integrity, and professionality.
Specific feature is as follows for reference:

Round bar steel (Diameter): 1mm to 3000mm
Square bar: 1mm to 2000mm
Plate/Sheet steel: 0.1mm to 2500mm
Width: 10mm to 2500mm
Length: random length or based on the customer's special requirement.
Forged steel shape: Shafts with flanks /pipes /tubes /slugs /donuts /cubes /other shapes.
Pipes / Tubings: OD: φ6-219 mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering
                                                  any other conditions based on the customer's requirement
Surface conditions: scaled (hot working finished)/ground/rough machining/fine machining
                                        based on the customer's special requirements.
Furnaces for metallurgical processing: electrode arc Furnace + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfection or based on the customer's requirement.
                                           Excellent service for all kinds of industries
                                              With advantages of technologies, equipment and price strategy.

Hot tags:AISI 414 round bar,AISI 414 flat bar,AISI 414 ring forgings,AISI 414 shaft,AISI 414 ESR ingot,AISI 414 disc,AISI 414 steel plate,AISI 414 steel tubing

Stainless Steel | Heat Resistant Steel | Superalloy | Valve Steel | Tool Steel | High Speed Steel | Hard Alloy | Structural Steel | Free Cutting Steel | Spring Steel | Bearing Steel | Cast Iron | Cast Steel | Welding Material | Titanium Alloy |

Copyright 2003 - 2011 LonghaiSteel Co.,Ltd is mainly engaged in a vast range of Special steels - Rod and bar, Square bar, Flat bar, Ring forging.
Multidiameter shaft, Heavy plate and Tubings.

Phone No.: +86-816-3307163 | Fax No.:+ 86-816-3639422 | Mobile: 1538 6611 557 
E-mail:  Homepage:
Address: No.119, Jiangdong Road, Sanhe Town, 621700, Jiangyou, Scihuan, China

Hot linksTOP STEEL Manufactory