STR31
2017-10-26 16:50:20   Source:   Criticism:0 CTR:

LonghaiSteel supply customers with STR31 steel plate,STR31 flat steel,STR31 forged multidiameter shafts,STR31 wire coil,STR31 square bar,STR31 round rod,STR31 steel pipe,STR31 forged valve body,STR31 forged steel rings
WELCOME TO MASS CUSTOMIZATIONSPECIALSTEEL WEBPAGE !

LonghaiSteel are Manufacturer and Supplier of Steel material STR31 with prompt delivery and the competitive quotation. If you are keen interested in the special steel, please feel free to contact with us for more detailed data concerning the special steel Today!

Steel grade: STR31    
specific feature is as follows:

Chemical composition   Mechanical property and heat treatment practice
C(%):    0.35~O.45
Si(%):    1.50~2.50
Mn(%):    ≤O.60
P(%)≤:    O.040
S(%)≤:    O.030
Cr(%):    14.O~16.0
Ni(%):    13.O~15.O
Mo(%):    —
N(%):    —
Other(%):    W 2.OO~3.00
 
Heat treatment|category:   solution treatment
Heat treatment|mark:    S
Tensile test|yield strength ≥/MPa:    314
Tensile test|tensile strength ≥/MPa:    735
Tensile test|elongation ≥(%):    30
Tensile test|reduction of area ≥(%):    40
Hardness HBS:    248
Suitable size /mm:    ≤25
Heat treatment regime - Heat resistant steel bar and plate                
Category:  Austenite
Steel grade:  STR31
Heat treatment temperature (℃) and cooling method|annealing:    —
Heat treatment temperature (℃) and cooling method|solution treatment or quenching:    950~1050  rapid cooling (S)
Heat treatment temperature (℃) and cooling method|ageing treatment or tempering :    —

Main features and application field:To be perfect 

Manufacturing technique:  
According to the steel grade and quality requirement, the melting of steel can adopt basic oxygen furnace, open- hearth furnace, electric arc furnace, electroslag remelting, vacuum degassing, and appropriate heat treatment.

We manufacture and supply steel products with following specifications:
Round bar / Wire rod (Diameter):  0.50mm to 3000mm
Square bar / Flat bar: 3mm to 2000mm
Plate / Sheet steel / Steel strip: 0.1mm to 2500mm
Width: 8mm to 2500mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Pipes / Tubings: OD 3-219 mm, with wall thickness ranging from 0.50 to 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: EAF + LF/ VD/ VOD/ AOD/ 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.

Advantage and product data
We have owned advanced production equipment and a team of professional design team, strict implementation of ISO9001 quality management system, Specializing in high quality steel and best processing service. Hot forging/rolling, cold roll/drawn, cold/hot working, extrusion of steel, mechanical processing services
We have advanced precision machining equipments with a higher productioncapacity,bringinga best service and affordable prices to customersfrom all over the world.

HOT SALE
Warehouse Stock: Round bar & Disc (Form)
17-4PH, 15-5PH, ASTM 630, S17400, X5CrNiCuNbl6-4, DIN 1.4542
202, 201, 2507, 2205, 316Ti, 301A, 302, 303, 304L, 304S, 310S, 314, 316L, 316LF, 317L, 321
616, 440B, 440C, 431, 430FR, 430F, 430, 422, 416, 410, 405
DIN 1.4731, DIN 1.4021, DIN 1.4016, DIN 1.4571, DIN 1.4418, DIN1.4104, DIN 1.4057
DIN 1.4913 (forged disc Diameter 300 X thickness 200), DIN 1.4935, DIN 1.4988, DIN 1.4986
DIN 1.4922, DIN 1.4923, ASTM 216 (Flat bar 18X 150 X1500)
 
Contact: Bruce Chiu
Manager // LonghaiSteel Co.,Ltd
ADD:Jiangdong Road,Sanhe Town,621700,Jiangyou,SC,China
Tel: 86-816-3653779
Fax: 86-816-3639422
Cell: 86-13398383667
QQ:1186425236
Email: sales@mcsteels.com
Web: http://www.mcsteels.com


TO SATISFY WITH YOU IS OUR FINAL GOAL,LET'S WORK TOGETHER TODAY!

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