Plate Double Stainless Steel Forged Disc Round F304L F316L F312L

Plate Double Stainless Steel Forged Disc Round F304L F316L F312L

Introduction

Large-diameter disc also called flange, which is one of the flanges, widely used and popularized in the machinery industry, chemical industry, wind power industry and sewage treatment industry, which has been praised and favored by users. The production process is divided into rolling and forging, the material usually use carbon steel, stainless steel or alloy steel.Our company can produce different type large flange accroding to the customer's drawing and requirments,if you have any questions,please contact with us freely

Material:

Double Stainless Steel: 1.4462, F51, S31803; F60, S32205; F53, S32750

Stainless Steel: F304L,F316L, F312L

Hastelloy: Inconel 625 & Monel K500

Carbon Steel, ASTM A105, ASTM A350 LF2 : ASTM A694 F60/65 S355J2G3

Standard: EN,DIN,ASME,ASTM,ASME,API, BS,JIS, ANSI,UNI,GOST

Melting process: EF+LF+VD; VOD, AOD, ESR

Process: Raw material inspection →Cutting→ inspection → Preheat → forging → heat treatment → inspection → rough machining → NDT → According to material Tech. heat treatment →Testing → finishing machining →NDT →inspection → packing→ Delivery.

Heat Treatment:

Carbon Steel treatment:N or N+T

Alloy Steel treatment: N, A or Q+T

Stainless Steel treatment: S

Parameters

QA DOC.: Chemical Composition Report, Mechanical Properties Report, UT Report, Heat Treatment Report, Dimensions Check Report

The data on chemical composition report and mechanical properties report are approved by third party, Luoyang Ship Material Research Institute, CSIC.

UT test: 100% ultrasonic test according to EN10228-3, SA388, Sep 1921 C/c etc.

Heat Treatment Report: provide original copy of heat treatment curve/time table.

Steel Ingot: EAF-LF-VD/ESR. Material Certificate according to En10204-3.1 is requested from ingot supplier.